Examples with OneToMany javax.persistence.OneToMany used on opensource projects

Example 1 with OneToMany

use of javax.persistence.OneToMany in project eweb4j-framework by laiweiwei.

the class OneToManyDAO method delete.

/**
	 * 
	 * 一对多（主从）级联删除 
	 * 1.前提条件必须主对象要存在于数据库中
	 * 2.检查当前主对象中的关联对象，如果关联对象为空，则删除所有与主对象有关的关联关系。
	 * 3.如果当前主对象中含有关联对象，则删除这些关联对象与主对象的关系
	 * 4.不会删除主对象
	 */
public void delete() throws DAOException {
    if (this.fields == null || this.fields.size() == 0)
        return;
    final Class<?> ownClass = ru.getObject().getClass();
    Transaction.execute(new Trans() {

        @Override
        public void run(Object... args) throws Exception {
            for (Field f : fields) {
                Method tarGetter = ru.getGetter(f.getName());
                if (tarGetter == null)
                    continue;
                OneToMany ann = tarGetter.getAnnotation(OneToMany.class);
                if (ann == null) {
                    ann = f.getAnnotation(OneToMany.class);
                    if (ann == null)
                        continue;
                }
                String mappedBy = ann.mappedBy();
                Class<?> tarClass = ann.targetEntity();
                if (void.class.isAssignableFrom(tarClass))
                    tarClass = ClassUtil.getGenericType(f);
                List<?> tarList = null;
                try {
                    tarList = (List<?>) tarGetter.invoke(t);
                } catch (Exception e) {
                    throw new DAOException(tarGetter + " invoke exception ", e);
                }
                if (tarList == null || tarList.size() == 0) {
                    // 当关联对象为空的时候，删除所有关联对象
                    ReflectUtil tarRu = new ReflectUtil(tarClass);
                    if (mappedBy == null || mappedBy.trim().length() == 0) {
                        for (Field tarObjField : tarRu.getFields()) {
                            if (!tarObjField.getType().getName().equals(ownClass.getName()))
                                continue;
                            Method tarObjFieldGetter = tarRu.getGetter(tarObjField.getName());
                            if (tarObjFieldGetter == null)
                                continue;
                            ManyToOne manyToOne = tarObjField.getAnnotation(ManyToOne.class);
                            if (manyToOne == null)
                                manyToOne = tarObjFieldGetter.getAnnotation(ManyToOne.class);
                            if (manyToOne == null)
                                continue;
                            mappedBy = tarObjField.getName();
                            String fromRefCol = null;
                            JoinColumn joinCol = tarObjField.getAnnotation(JoinColumn.class);
                            if (joinCol == null)
                                joinCol = tarObjFieldGetter.getAnnotation(JoinColumn.class);
                            if (joinCol != null)
                                fromRefCol = joinCol.referencedColumnName();
                            if (fromRefCol == null || fromRefCol.trim().length() == 0)
                                fromRefCol = ORMConfigBeanUtil.getIdColumn(t);
                            String fromRefField = ORMConfigBeanUtil.getField(ownClass, fromRefCol);
                            Method fromRefFieldGetter = ru.getGetter(fromRefField);
                            if (fromRefFieldGetter == null)
                                throw new Exception("can not find the 'from ref field field -> " + fromRefField + "' of " + ownClass + " 's getter method");
                            String fromRefVal = null;
                            Object _obj = fromRefFieldGetter.invoke(t);
                            if (_obj != null)
                                fromRefVal = String.valueOf(_obj);
                            DAOFactory.getDeleteDAO(dsName).deleteByFieldIsValue(tarClass, new String[] { tarObjField.getName() }, new String[] { fromRefVal });
                            break;
                        }
                    }
                } else {
                    // 当关联对象不为空的时候，删除这些关联对象
                    for (int i = 0; i < tarList.size(); i++) {
                        Object tarObj = tarList.get(i);
                        if (tarObj == null)
                            continue;
                        //如果这些对象没有ID值，跳过
                        Object tarObjIdVal = ORMConfigBeanUtil.getIdVal(tarObj);
                        if (tarObjIdVal == null)
                            continue;
                        ReflectUtil tarRu = new ReflectUtil(tarObj);
                        if (mappedBy != null && mappedBy.trim().length() > 0) {
                            Method ownFieldSetter = tarRu.getSetter(mappedBy);
                            if (ownFieldSetter == null)
                                continue;
                            // finished
                            DAOFactory.getDeleteDAO(dsName).deleteById(tarObj);
                        } else {
                            JoinTable joinTable = null;
                            if (f.isAnnotationPresent(JoinTable.class)) {
                                joinTable = f.getAnnotation(JoinTable.class);
                            } else if (tarGetter.isAnnotationPresent(JoinTable.class)) {
                                joinTable = tarGetter.getAnnotation(JoinTable.class);
                            } else {
                                // find ownclass in tarObj fields
                                for (Field tarObjField : tarRu.getFields()) {
                                    if (!tarObjField.getType().getName().equals(ownClass.getName()))
                                        continue;
                                    Method tarObjFieldGetter = tarRu.getGetter(tarObjField.getName());
                                    if (tarObjFieldGetter == null)
                                        continue;
                                    ManyToOne manyToOne = tarObjField.getAnnotation(ManyToOne.class);
                                    if (manyToOne == null)
                                        manyToOne = tarObjFieldGetter.getAnnotation(ManyToOne.class);
                                    if (manyToOne == null)
                                        continue;
                                    String fromRefCol = null;
                                    JoinColumn joinCol = tarObjField.getAnnotation(JoinColumn.class);
                                    if (joinCol == null)
                                        joinCol = tarObjFieldGetter.getAnnotation(JoinColumn.class);
                                    if (joinCol != null)
                                        fromRefCol = joinCol.referencedColumnName();
                                    if (fromRefCol == null || fromRefCol.trim().length() == 0)
                                        fromRefCol = ORMConfigBeanUtil.getIdColumn(t);
                                    String fromRefField = ORMConfigBeanUtil.getField(ownClass, fromRefCol);
                                    Method fromRefFieldGetter = ru.getGetter(fromRefField);
                                    if (fromRefFieldGetter == null)
                                        throw new Exception("can not find the 'from ref field field -> " + fromRefField + "' of " + ownClass + " 's getter method");
                                    String fromRefVal = null;
                                    Object _obj = fromRefFieldGetter.invoke(t);
                                    if (_obj != null)
                                        fromRefVal = String.valueOf(_obj);
                                    DAOFactory.getDeleteDAO(dsName).deleteByFieldIsValue(tarClass, new String[] { tarObjField.getName() }, new String[] { fromRefVal });
                                    break;
                                }
                            }
                            if (joinTable != null) {
                                JoinColumn[] froms = joinTable.joinColumns();
                                if (froms == null || froms.length == 0)
                                    continue;
                                String from = froms[0].name();
                                JoinColumn[] tos = joinTable.inverseJoinColumns();
                                if (tos == null || tos.length == 0)
                                    continue;
                                String to = tos[0].name();
                                String relTable = joinTable.name();
                                String fromRefCol = froms[0].referencedColumnName();
                                if (fromRefCol == null || fromRefCol.trim().length() == 0)
                                    fromRefCol = ORMConfigBeanUtil.getIdColumn(t);
                                String fromRefField = ORMConfigBeanUtil.getField(t.getClass(), fromRefCol);
                                Method fromRefFieldGetter = ru.getGetter(fromRefField);
                                if (fromRefFieldGetter == null)
                                    throw new Exception("can not find the 'from ref field -> " + fromRefField + "' of " + t.getClass() + " 's getter method");
                                Object _obj = fromRefFieldGetter.invoke(t);
                                if (_obj == null)
                                    continue;
                                String fromRefVal = String.valueOf(_obj);
                                String toRefCol = tos[0].referencedColumnName();
                                if (toRefCol == null || toRefCol.trim().length() == 0)
                                    toRefCol = ORMConfigBeanUtil.getIdColumn(tarClass);
                                String toRefField = ORMConfigBeanUtil.getField(tarClass, toRefCol);
                                Method toRefFieldGetter = tarRu.getGetter(toRefField);
                                if (toRefFieldGetter == null)
                                    throw new Exception("can not find the 'to ref field -> " + toRefField + "' of " + tarClass + " 's getter method");
                                Object _obj2 = toRefFieldGetter.invoke(tarObj);
                                if (_obj2 == null)
                                    continue;
                                String toRefVal = String.valueOf(_obj2);
                                // delete from relTable where from = ? and to = ? ;
                                String format = "delete from %s where %s = ? and %s = ? ;";
                                String sql = String.format(format, relTable, from, to);
                                // finished
                                DAOFactory.getUpdateDAO(dsName).updateBySQLWithArgs(sql, fromRefVal, toRefVal);
                            }
                        }
                    }
                }
            }
        }
    });
}

Example 2 with OneToMany

use of javax.persistence.OneToMany in project eweb4j-framework by laiweiwei.

the class OneToManyDAO method select.

/**
	 * 一对多（主从）级联查询
	 */
public void select() throws DAOException {
    if (this.fields == null || this.fields.size() == 0)
        return;
    Class<?> ownClass = ru.getObject().getClass();
    String fromRefVal = null;
    for (Field f : fields) {
        Method tarGetter = ru.getGetter(f.getName());
        if (tarGetter == null)
            continue;
        OneToMany ann = tarGetter.getAnnotation(OneToMany.class);
        if (ann == null) {
            ann = f.getAnnotation(OneToMany.class);
            if (ann == null)
                continue;
        }
        OrderBy orderAnn = tarGetter.getAnnotation(OrderBy.class);
        if (orderAnn == null)
            orderAnn = f.getAnnotation(OrderBy.class);
        Class<?> tarClass = ann.targetEntity();
        if (void.class.isAssignableFrom(tarClass))
            tarClass = ClassUtil.getGenericType(f);
        String orderBy = "";
        if (orderAnn != null && orderAnn.value().trim().length() > 0)
            orderBy = " ORDER BY " + orderAnn.value().replace("t.", tarClass.getSimpleName().toLowerCase() + ".");
        String mappedBy = ann.mappedBy();
        try {
            ReflectUtil tarRu = new ReflectUtil(tarClass);
            List<?> tarList = null;
            JoinTable joinTable = null;
            if (f.isAnnotationPresent(JoinTable.class)) {
                joinTable = f.getAnnotation(JoinTable.class);
            } else if (tarGetter.isAnnotationPresent(JoinTable.class)) {
                joinTable = tarGetter.getAnnotation(JoinTable.class);
            }
            // 如果用户填写了 JoinTable注解，说明是第三方表建立的关联关系，需要查询第三方表和字段才能获取到targetList
            if (joinTable != null) {
                JoinColumn[] froms = joinTable.joinColumns();
                if (froms == null || froms.length == 0)
                    continue;
                String tarTable = joinTable.name();
                String from = froms[0].name();
                String fromRefCol = froms[0].referencedColumnName();
                if (fromRefCol == null || fromRefCol.trim().length() == 0)
                    fromRefCol = ORMConfigBeanUtil.getIdColumn(t);
                String fromRefField = ORMConfigBeanUtil.getField(t.getClass(), fromRefCol);
                Method fromRefFieldGetter = ru.getGetter(fromRefField);
                if (fromRefFieldGetter == null)
                    throw new Exception("can not find the 'from ref field -> " + fromRefField + "' of " + t.getClass() + " 's getter method");
                Object _obj = fromRefFieldGetter.invoke(t);
                if (_obj == null)
                    continue;
                fromRefVal = String.valueOf(_obj);
                String format = "select %s from %s where %s = ?  ;";
                String sql = String.format(format, ORMConfigBeanUtil.getSelectAllColumn(tarClass), tarTable, from) + orderBy;
                // finished
                tarList = DAOFactory.getSelectDAO(dsName).selectBySQL(tarClass, sql, fromRefVal);
            } else {
                // 否则的话按照ManyToOne去查询
                // 如果给定了 mappedBy，直接用这个mappedBy来获取filed，否则遍历。
                Field mappedField = null;
                if (mappedBy != null && mappedBy.trim().length() > 0) {
                    mappedField = tarRu.getField(mappedBy);
                } else {
                    for (Field field : tarRu.getFields()) {
                        if (!field.getType().getName().equals(ownClass.getName()))
                            continue;
                        mappedField = field;
                        mappedBy = mappedField.getName();
                        break;
                    }
                }
                if (mappedField == null)
                    throw new Exception("mapped field of " + tarClass + " not found");
                Method tarObjFieldGetter = tarRu.getGetter(mappedBy);
                if (tarObjFieldGetter == null)
                    continue;
                ManyToOne manyToOne = mappedField.getAnnotation(ManyToOne.class);
                if (manyToOne == null)
                    manyToOne = tarObjFieldGetter.getAnnotation(ManyToOne.class);
                if (manyToOne == null)
                    continue;
                String fromRefCol = null;
                JoinColumn joinCol = mappedField.getAnnotation(JoinColumn.class);
                if (joinCol == null)
                    joinCol = tarObjFieldGetter.getAnnotation(JoinColumn.class);
                if (joinCol != null)
                    fromRefCol = joinCol.referencedColumnName();
                if (fromRefCol == null || fromRefCol.trim().length() == 0)
                    fromRefCol = ORMConfigBeanUtil.getIdColumn(t);
                String fromRefField = ORMConfigBeanUtil.getField(ownClass, fromRefCol);
                Method fromRefFieldGetter = ru.getGetter(fromRefField);
                if (fromRefFieldGetter == null)
                    throw new Exception("can not find the 'from ref field field -> " + fromRefField + "' of " + ownClass + " 's getter method");
                Object _obj = fromRefFieldGetter.invoke(t);
                if (_obj != null)
                    fromRefVal = String.valueOf(_obj);
                String format = "select %s from %s where %s = ?  ;";
                String sql = String.format(format, ORMConfigBeanUtil.getSelectAllColumn(tarClass), ORMConfigBeanUtil.getTable(tarClass, true), ORMConfigBeanUtil.getColumn(tarClass, mappedBy)) + orderBy;
                // finished
                tarList = DAOFactory.getSelectDAO(dsName).selectBySQL(tarClass, sql, fromRefVal);
            }
            if (tarList == null)
                continue;
            Method tarSetter = ru.getSetter(f.getName());
            if (tarSetter == null)
                continue;
            tarSetter.invoke(t, tarList);
        } catch (Exception e) {
            throw new DAOException("", e);
        }
    }
}

Example 3 with OneToMany

use of javax.persistence.OneToMany in project eweb4j-framework by laiweiwei.

the class DAOImpl method queryBySql.

public <T> Collection<T> queryBySql(final String sql) {
    Class<T> mappingCls = null;
    if (this.targetEntity == null)
        mappingCls = (Class<T>) this.clazz;
    else
        mappingCls = (Class<T>) this.targetEntity;
    List<T> result = null;
    try {
        if (Map.class.isAssignableFrom(mappingCls)) {
            Connection con = ds.getConnection();
            if (args != null && args.size() > 0) {
                result = (List<T>) JdbcUtil.getListWithArgs(con, mappingCls, sql, args.toArray(new Object[] {}));
            } else {
                result = (List<T>) JdbcUtil.getList(con, mappingCls, sql);
            }
        } else {
            if (args != null && args.size() > 0) {
                result = (List<T>) DAOFactory.getSelectDAO(dsName).selectBySQL(mappingCls, sql, args.toArray(new Object[] {}));
            } else {
                result = (List<T>) DAOFactory.getSelectDAO(dsName).selectBySQL(mappingCls, sql);
            }
        }
        //this.clear();
        if (result != null && result.size() > 0) {
            for (T t : result) {
                // ToOne relation class cascade select
                ReflectUtil ru = new ReflectUtil(t);
                for (Field field : ru.getFields()) {
                    String f = field.getName();
                    OneToOne o2o = field.getAnnotation(OneToOne.class);
                    ManyToOne m2o = field.getAnnotation(ManyToOne.class);
                    OneToMany o2m = field.getAnnotation(OneToMany.class);
                    ManyToMany m2m = field.getAnnotation(ManyToMany.class);
                    FetchType fetchType = null;
                    boolean is2One = false;
                    if (o2o != null) {
                        fetchType = o2o.fetch();
                        is2One = true;
                    }
                    if (m2o != null) {
                        fetchType = m2o.fetch();
                        is2One = true;
                    }
                    if (o2m != null) {
                        fetchType = o2m.fetch();
                    }
                    if (m2m != null) {
                        fetchType = m2m.fetch();
                    }
                    if (fetchType == null)
                        continue;
                    String beanId = field.getType().getName();
                    if (!is2One)
                        beanId = ClassUtil.getGenericType(field).getName();
                    boolean isEntity = ORMConfigBeanCache.containsKey(beanId);
                    if (!isEntity)
                        continue;
                    if (unFetch.contains(f))
                        continue;
                    if (fetch.contains(f)) {
                        log.debug("cascade select -> " + t.getClass().getName() + "." + f);
                        DAOFactory.getCascadeDAO(dsName).select(t, f);
                        continue;
                    }
                    if (FetchType.LAZY.equals(fetchType))
                        continue;
                    log.debug("cascade select -> " + t.getClass().getName() + "." + f);
                    DAOFactory.getCascadeDAO(dsName).select(t, f);
                }
            }
        }
        return result;
    } catch (Exception e) {
        log.error("sql-->" + sql, e);
        throw new DAOException(sql + " execute exception", e);
    }
}

Example 4 with OneToMany

use of javax.persistence.OneToMany in project hibernate-orm by hibernate.

the class AnnotationBinder method processElementAnnotations.

/*
	 * Process annotation of a particular property
	 */
private static void processElementAnnotations(PropertyHolder propertyHolder, Nullability nullability, PropertyData inferredData, HashMap<String, IdentifierGeneratorDefinition> classGenerators, EntityBinder entityBinder, boolean isIdentifierMapper, boolean isComponentEmbedded, boolean inSecondPass, MetadataBuildingContext context, Map<XClass, InheritanceState> inheritanceStatePerClass) throws MappingException {
    if (!propertyHolder.isComponent()) {
        if (entityBinder.isPropertyDefinedInSuperHierarchy(inferredData.getPropertyName())) {
            LOG.debugf("Skipping attribute [%s : %s] as it was already processed as part of super hierarchy", inferredData.getClassOrElementName(), inferredData.getPropertyName());
            return;
        }
    }
    /**
		 * inSecondPass can only be used to apply right away the second pass of a composite-element
		 * Because it's a value type, there is no bidirectional association, hence second pass
		 * ordering does not matter
		 */
    final boolean traceEnabled = LOG.isTraceEnabled();
    if (traceEnabled) {
        LOG.tracev("Processing annotations of {0}.{1}", propertyHolder.getEntityName(), inferredData.getPropertyName());
    }
    final XProperty property = inferredData.getProperty();
    if (property.isAnnotationPresent(Parent.class)) {
        if (propertyHolder.isComponent()) {
            propertyHolder.setParentProperty(property.getName());
        } else {
            throw new AnnotationException("@Parent cannot be applied outside an embeddable object: " + BinderHelper.getPath(propertyHolder, inferredData));
        }
        return;
    }
    ColumnsBuilder columnsBuilder = new ColumnsBuilder(propertyHolder, nullability, property, inferredData, entityBinder, context).extractMetadata();
    Ejb3Column[] columns = columnsBuilder.getColumns();
    Ejb3JoinColumn[] joinColumns = columnsBuilder.getJoinColumns();
    final XClass returnedClass = inferredData.getClassOrElement();
    //prepare PropertyBinder
    PropertyBinder propertyBinder = new PropertyBinder();
    propertyBinder.setName(inferredData.getPropertyName());
    propertyBinder.setReturnedClassName(inferredData.getTypeName());
    propertyBinder.setAccessType(inferredData.getDefaultAccess());
    propertyBinder.setHolder(propertyHolder);
    propertyBinder.setProperty(property);
    propertyBinder.setReturnedClass(inferredData.getPropertyClass());
    propertyBinder.setBuildingContext(context);
    if (isIdentifierMapper) {
        propertyBinder.setInsertable(false);
        propertyBinder.setUpdatable(false);
    }
    propertyBinder.setDeclaringClass(inferredData.getDeclaringClass());
    propertyBinder.setEntityBinder(entityBinder);
    propertyBinder.setInheritanceStatePerClass(inheritanceStatePerClass);
    boolean isId = !entityBinder.isIgnoreIdAnnotations() && (property.isAnnotationPresent(Id.class) || property.isAnnotationPresent(EmbeddedId.class));
    propertyBinder.setId(isId);
    final LazyGroup lazyGroupAnnotation = property.getAnnotation(LazyGroup.class);
    if (lazyGroupAnnotation != null) {
        propertyBinder.setLazyGroup(lazyGroupAnnotation.value());
    }
    if (property.isAnnotationPresent(Version.class)) {
        if (isIdentifierMapper) {
            throw new AnnotationException("@IdClass class should not have @Version property");
        }
        if (!(propertyHolder.getPersistentClass() instanceof RootClass)) {
            throw new AnnotationException("Unable to define/override @Version on a subclass: " + propertyHolder.getEntityName());
        }
        if (!propertyHolder.isEntity()) {
            throw new AnnotationException("Unable to define @Version on an embedded class: " + propertyHolder.getEntityName());
        }
        if (traceEnabled) {
            LOG.tracev("{0} is a version property", inferredData.getPropertyName());
        }
        RootClass rootClass = (RootClass) propertyHolder.getPersistentClass();
        propertyBinder.setColumns(columns);
        Property prop = propertyBinder.makePropertyValueAndBind();
        setVersionInformation(property, propertyBinder);
        rootClass.setVersion(prop);
        //If version is on a mapped superclass, update the mapping
        final org.hibernate.mapping.MappedSuperclass superclass = BinderHelper.getMappedSuperclassOrNull(inferredData.getDeclaringClass(), inheritanceStatePerClass, context);
        if (superclass != null) {
            superclass.setDeclaredVersion(prop);
        } else {
            //we know the property is on the actual entity
            rootClass.setDeclaredVersion(prop);
        }
        SimpleValue simpleValue = (SimpleValue) prop.getValue();
        simpleValue.setNullValue("undefined");
        rootClass.setOptimisticLockStyle(OptimisticLockStyle.VERSION);
        if (traceEnabled) {
            LOG.tracev("Version name: {0}, unsavedValue: {1}", rootClass.getVersion().getName(), ((SimpleValue) rootClass.getVersion().getValue()).getNullValue());
        }
    } else {
        final boolean forcePersist = property.isAnnotationPresent(MapsId.class) || property.isAnnotationPresent(Id.class);
        if (property.isAnnotationPresent(ManyToOne.class)) {
            ManyToOne ann = property.getAnnotation(ManyToOne.class);
            //check validity
            if (property.isAnnotationPresent(Column.class) || property.isAnnotationPresent(Columns.class)) {
                throw new AnnotationException("@Column(s) not allowed on a @ManyToOne property: " + BinderHelper.getPath(propertyHolder, inferredData));
            }
            Cascade hibernateCascade = property.getAnnotation(Cascade.class);
            NotFound notFound = property.getAnnotation(NotFound.class);
            boolean ignoreNotFound = notFound != null && notFound.action().equals(NotFoundAction.IGNORE);
            OnDelete onDeleteAnn = property.getAnnotation(OnDelete.class);
            boolean onDeleteCascade = onDeleteAnn != null && OnDeleteAction.CASCADE.equals(onDeleteAnn.action());
            JoinTable assocTable = propertyHolder.getJoinTable(property);
            if (assocTable != null) {
                Join join = propertyHolder.addJoin(assocTable, false);
                for (Ejb3JoinColumn joinColumn : joinColumns) {
                    joinColumn.setExplicitTableName(join.getTable().getName());
                }
            }
            final boolean mandatory = !ann.optional() || forcePersist;
            bindManyToOne(getCascadeStrategy(ann.cascade(), hibernateCascade, false, forcePersist), joinColumns, !mandatory, ignoreNotFound, onDeleteCascade, ToOneBinder.getTargetEntity(inferredData, context), propertyHolder, inferredData, false, isIdentifierMapper, inSecondPass, propertyBinder, context);
        } else if (property.isAnnotationPresent(OneToOne.class)) {
            OneToOne ann = property.getAnnotation(OneToOne.class);
            //check validity
            if (property.isAnnotationPresent(Column.class) || property.isAnnotationPresent(Columns.class)) {
                throw new AnnotationException("@Column(s) not allowed on a @OneToOne property: " + BinderHelper.getPath(propertyHolder, inferredData));
            }
            //FIXME support a proper PKJCs
            boolean trueOneToOne = property.isAnnotationPresent(PrimaryKeyJoinColumn.class) || property.isAnnotationPresent(PrimaryKeyJoinColumns.class);
            Cascade hibernateCascade = property.getAnnotation(Cascade.class);
            NotFound notFound = property.getAnnotation(NotFound.class);
            boolean ignoreNotFound = notFound != null && notFound.action().equals(NotFoundAction.IGNORE);
            OnDelete onDeleteAnn = property.getAnnotation(OnDelete.class);
            boolean onDeleteCascade = onDeleteAnn != null && OnDeleteAction.CASCADE.equals(onDeleteAnn.action());
            JoinTable assocTable = propertyHolder.getJoinTable(property);
            if (assocTable != null) {
                Join join = propertyHolder.addJoin(assocTable, false);
                for (Ejb3JoinColumn joinColumn : joinColumns) {
                    joinColumn.setExplicitTableName(join.getTable().getName());
                }
            }
            //MapsId means the columns belong to the pk => not null
            //@OneToOne with @PKJC can still be optional
            final boolean mandatory = !ann.optional() || forcePersist;
            bindOneToOne(getCascadeStrategy(ann.cascade(), hibernateCascade, ann.orphanRemoval(), forcePersist), joinColumns, !mandatory, getFetchMode(ann.fetch()), ignoreNotFound, onDeleteCascade, ToOneBinder.getTargetEntity(inferredData, context), propertyHolder, inferredData, ann.mappedBy(), trueOneToOne, isIdentifierMapper, inSecondPass, propertyBinder, context);
        } else if (property.isAnnotationPresent(org.hibernate.annotations.Any.class)) {
            //check validity
            if (property.isAnnotationPresent(Column.class) || property.isAnnotationPresent(Columns.class)) {
                throw new AnnotationException("@Column(s) not allowed on a @Any property: " + BinderHelper.getPath(propertyHolder, inferredData));
            }
            Cascade hibernateCascade = property.getAnnotation(Cascade.class);
            OnDelete onDeleteAnn = property.getAnnotation(OnDelete.class);
            boolean onDeleteCascade = onDeleteAnn != null && OnDeleteAction.CASCADE.equals(onDeleteAnn.action());
            JoinTable assocTable = propertyHolder.getJoinTable(property);
            if (assocTable != null) {
                Join join = propertyHolder.addJoin(assocTable, false);
                for (Ejb3JoinColumn joinColumn : joinColumns) {
                    joinColumn.setExplicitTableName(join.getTable().getName());
                }
            }
            bindAny(getCascadeStrategy(null, hibernateCascade, false, forcePersist), //@Any has not cascade attribute
            joinColumns, onDeleteCascade, nullability, propertyHolder, inferredData, entityBinder, isIdentifierMapper, context);
        } else if (property.isAnnotationPresent(OneToMany.class) || property.isAnnotationPresent(ManyToMany.class) || property.isAnnotationPresent(ElementCollection.class) || property.isAnnotationPresent(ManyToAny.class)) {
            OneToMany oneToManyAnn = property.getAnnotation(OneToMany.class);
            ManyToMany manyToManyAnn = property.getAnnotation(ManyToMany.class);
            ElementCollection elementCollectionAnn = property.getAnnotation(ElementCollection.class);
            if ((oneToManyAnn != null || manyToManyAnn != null || elementCollectionAnn != null) && isToManyAssociationWithinEmbeddableCollection(propertyHolder)) {
                throw new AnnotationException("@OneToMany, @ManyToMany or @ElementCollection cannot be used inside an @Embeddable that is also contained within an @ElementCollection: " + BinderHelper.getPath(propertyHolder, inferredData));
            }
            final IndexColumn indexColumn;
            if (property.isAnnotationPresent(OrderColumn.class)) {
                indexColumn = IndexColumn.buildColumnFromAnnotation(property.getAnnotation(OrderColumn.class), propertyHolder, inferredData, entityBinder.getSecondaryTables(), context);
                if (property.isAnnotationPresent(ListIndexBase.class)) {
                    indexColumn.setBase((property.getAnnotation(ListIndexBase.class)).value());
                }
            } else {
                //if @IndexColumn is not there, the generated IndexColumn is an implicit column and not used.
                //so we can leave the legacy processing as the default
                indexColumn = IndexColumn.buildColumnFromAnnotation(property.getAnnotation(org.hibernate.annotations.IndexColumn.class), propertyHolder, inferredData, context);
            }
            CollectionBinder collectionBinder = CollectionBinder.getCollectionBinder(propertyHolder.getEntityName(), property, !indexColumn.isImplicit(), property.isAnnotationPresent(MapKeyType.class), context);
            collectionBinder.setIndexColumn(indexColumn);
            collectionBinder.setMapKey(property.getAnnotation(MapKey.class));
            collectionBinder.setPropertyName(inferredData.getPropertyName());
            collectionBinder.setBatchSize(property.getAnnotation(BatchSize.class));
            collectionBinder.setJpaOrderBy(property.getAnnotation(javax.persistence.OrderBy.class));
            collectionBinder.setSqlOrderBy(property.getAnnotation(OrderBy.class));
            collectionBinder.setSort(property.getAnnotation(Sort.class));
            collectionBinder.setNaturalSort(property.getAnnotation(SortNatural.class));
            collectionBinder.setComparatorSort(property.getAnnotation(SortComparator.class));
            Cache cachAnn = property.getAnnotation(Cache.class);
            collectionBinder.setCache(cachAnn);
            collectionBinder.setPropertyHolder(propertyHolder);
            Cascade hibernateCascade = property.getAnnotation(Cascade.class);
            NotFound notFound = property.getAnnotation(NotFound.class);
            boolean ignoreNotFound = notFound != null && notFound.action().equals(NotFoundAction.IGNORE);
            collectionBinder.setIgnoreNotFound(ignoreNotFound);
            collectionBinder.setCollectionType(inferredData.getProperty().getElementClass());
            collectionBinder.setBuildingContext(context);
            collectionBinder.setAccessType(inferredData.getDefaultAccess());
            Ejb3Column[] elementColumns;
            //do not use "element" if you are a JPA 2 @ElementCollection only for legacy Hibernate mappings
            boolean isJPA2ForValueMapping = property.isAnnotationPresent(ElementCollection.class);
            PropertyData virtualProperty = isJPA2ForValueMapping ? inferredData : new WrappedInferredData(inferredData, "element");
            if (property.isAnnotationPresent(Column.class) || property.isAnnotationPresent(Formula.class)) {
                Column ann = property.getAnnotation(Column.class);
                Formula formulaAnn = property.getAnnotation(Formula.class);
                elementColumns = Ejb3Column.buildColumnFromAnnotation(new Column[] { ann }, formulaAnn, nullability, propertyHolder, virtualProperty, entityBinder.getSecondaryTables(), context);
            } else if (property.isAnnotationPresent(Columns.class)) {
                Columns anns = property.getAnnotation(Columns.class);
                elementColumns = Ejb3Column.buildColumnFromAnnotation(anns.columns(), null, nullability, propertyHolder, virtualProperty, entityBinder.getSecondaryTables(), context);
            } else {
                elementColumns = Ejb3Column.buildColumnFromAnnotation(null, null, nullability, propertyHolder, virtualProperty, entityBinder.getSecondaryTables(), context);
            }
            {
                Column[] keyColumns = null;
                //JPA 2 has priority and has different default column values, differenciate legacy from JPA 2
                Boolean isJPA2 = null;
                if (property.isAnnotationPresent(MapKeyColumn.class)) {
                    isJPA2 = Boolean.TRUE;
                    keyColumns = new Column[] { new MapKeyColumnDelegator(property.getAnnotation(MapKeyColumn.class)) };
                }
                //not explicitly legacy
                if (isJPA2 == null) {
                    isJPA2 = Boolean.TRUE;
                }
                //nullify empty array
                keyColumns = keyColumns != null && keyColumns.length > 0 ? keyColumns : null;
                //"mapkey" is the legacy column name of the key column pre JPA 2
                PropertyData mapKeyVirtualProperty = new WrappedInferredData(inferredData, "mapkey");
                Ejb3Column[] mapColumns = Ejb3Column.buildColumnFromAnnotation(keyColumns, null, Nullability.FORCED_NOT_NULL, propertyHolder, isJPA2 ? inferredData : mapKeyVirtualProperty, isJPA2 ? "_KEY" : null, entityBinder.getSecondaryTables(), context);
                collectionBinder.setMapKeyColumns(mapColumns);
            }
            {
                JoinColumn[] joinKeyColumns = null;
                //JPA 2 has priority and has different default column values, differenciate legacy from JPA 2
                Boolean isJPA2 = null;
                if (property.isAnnotationPresent(MapKeyJoinColumns.class)) {
                    isJPA2 = Boolean.TRUE;
                    final MapKeyJoinColumn[] mapKeyJoinColumns = property.getAnnotation(MapKeyJoinColumns.class).value();
                    joinKeyColumns = new JoinColumn[mapKeyJoinColumns.length];
                    int index = 0;
                    for (MapKeyJoinColumn joinColumn : mapKeyJoinColumns) {
                        joinKeyColumns[index] = new MapKeyJoinColumnDelegator(joinColumn);
                        index++;
                    }
                    if (property.isAnnotationPresent(MapKeyJoinColumn.class)) {
                        throw new AnnotationException("@MapKeyJoinColumn and @MapKeyJoinColumns used on the same property: " + BinderHelper.getPath(propertyHolder, inferredData));
                    }
                } else if (property.isAnnotationPresent(MapKeyJoinColumn.class)) {
                    isJPA2 = Boolean.TRUE;
                    joinKeyColumns = new JoinColumn[] { new MapKeyJoinColumnDelegator(property.getAnnotation(MapKeyJoinColumn.class)) };
                }
                //not explicitly legacy
                if (isJPA2 == null) {
                    isJPA2 = Boolean.TRUE;
                }
                PropertyData mapKeyVirtualProperty = new WrappedInferredData(inferredData, "mapkey");
                Ejb3JoinColumn[] mapJoinColumns = Ejb3JoinColumn.buildJoinColumnsWithDefaultColumnSuffix(joinKeyColumns, null, entityBinder.getSecondaryTables(), propertyHolder, isJPA2 ? inferredData.getPropertyName() : mapKeyVirtualProperty.getPropertyName(), isJPA2 ? "_KEY" : null, context);
                collectionBinder.setMapKeyManyToManyColumns(mapJoinColumns);
            }
            //potential element
            collectionBinder.setEmbedded(property.isAnnotationPresent(Embedded.class));
            collectionBinder.setElementColumns(elementColumns);
            collectionBinder.setProperty(property);
            //TODO enhance exception with @ManyToAny and @CollectionOfElements
            if (oneToManyAnn != null && manyToManyAnn != null) {
                throw new AnnotationException("@OneToMany and @ManyToMany on the same property is not allowed: " + propertyHolder.getEntityName() + "." + inferredData.getPropertyName());
            }
            String mappedBy = null;
            if (oneToManyAnn != null) {
                for (Ejb3JoinColumn column : joinColumns) {
                    if (column.isSecondary()) {
                        throw new NotYetImplementedException("Collections having FK in secondary table");
                    }
                }
                collectionBinder.setFkJoinColumns(joinColumns);
                mappedBy = oneToManyAnn.mappedBy();
                collectionBinder.setTargetEntity(context.getBuildingOptions().getReflectionManager().toXClass(oneToManyAnn.targetEntity()));
                collectionBinder.setCascadeStrategy(getCascadeStrategy(oneToManyAnn.cascade(), hibernateCascade, oneToManyAnn.orphanRemoval(), false));
                collectionBinder.setOneToMany(true);
            } else if (elementCollectionAnn != null) {
                for (Ejb3JoinColumn column : joinColumns) {
                    if (column.isSecondary()) {
                        throw new NotYetImplementedException("Collections having FK in secondary table");
                    }
                }
                collectionBinder.setFkJoinColumns(joinColumns);
                mappedBy = "";
                final Class<?> targetElement = elementCollectionAnn.targetClass();
                collectionBinder.setTargetEntity(context.getBuildingOptions().getReflectionManager().toXClass(targetElement));
                //collectionBinder.setCascadeStrategy( getCascadeStrategy( embeddedCollectionAnn.cascade(), hibernateCascade ) );
                collectionBinder.setOneToMany(true);
            } else if (manyToManyAnn != null) {
                mappedBy = manyToManyAnn.mappedBy();
                collectionBinder.setTargetEntity(context.getBuildingOptions().getReflectionManager().toXClass(manyToManyAnn.targetEntity()));
                collectionBinder.setCascadeStrategy(getCascadeStrategy(manyToManyAnn.cascade(), hibernateCascade, false, false));
                collectionBinder.setOneToMany(false);
            } else if (property.isAnnotationPresent(ManyToAny.class)) {
                mappedBy = "";
                collectionBinder.setTargetEntity(context.getBuildingOptions().getReflectionManager().toXClass(void.class));
                collectionBinder.setCascadeStrategy(getCascadeStrategy(null, hibernateCascade, false, false));
                collectionBinder.setOneToMany(false);
            }
            collectionBinder.setMappedBy(mappedBy);
            bindJoinedTableAssociation(property, context, entityBinder, collectionBinder, propertyHolder, inferredData, mappedBy);
            OnDelete onDeleteAnn = property.getAnnotation(OnDelete.class);
            boolean onDeleteCascade = onDeleteAnn != null && OnDeleteAction.CASCADE.equals(onDeleteAnn.action());
            collectionBinder.setCascadeDeleteEnabled(onDeleteCascade);
            if (isIdentifierMapper) {
                collectionBinder.setInsertable(false);
                collectionBinder.setUpdatable(false);
            }
            if (property.isAnnotationPresent(CollectionId.class)) {
                //do not compute the generators unless necessary
                HashMap<String, IdentifierGeneratorDefinition> localGenerators = (HashMap<String, IdentifierGeneratorDefinition>) classGenerators.clone();
                localGenerators.putAll(buildLocalGenerators(property, context));
                collectionBinder.setLocalGenerators(localGenerators);
            }
            collectionBinder.setInheritanceStatePerClass(inheritanceStatePerClass);
            collectionBinder.setDeclaringClass(inferredData.getDeclaringClass());
            collectionBinder.bind();
        } else //Either a regular property or a basic @Id or @EmbeddedId while not ignoring id annotations
        if (!isId || !entityBinder.isIgnoreIdAnnotations()) {
            //define whether the type is a component or not
            boolean isComponent = false;
            //Overrides from @MapsId if needed
            boolean isOverridden = false;
            if (isId || propertyHolder.isOrWithinEmbeddedId() || propertyHolder.isInIdClass()) {
                //the associated entity could be using an @IdClass making the overridden property a component
                final PropertyData overridingProperty = BinderHelper.getPropertyOverriddenByMapperOrMapsId(isId, propertyHolder, property.getName(), context);
                if (overridingProperty != null) {
                    isOverridden = true;
                    final InheritanceState state = inheritanceStatePerClass.get(overridingProperty.getClassOrElement());
                    if (state != null) {
                        isComponent = isComponent || state.hasIdClassOrEmbeddedId();
                    }
                    //Get the new column
                    columns = columnsBuilder.overrideColumnFromMapperOrMapsIdProperty(isId);
                }
            }
            isComponent = isComponent || property.isAnnotationPresent(Embedded.class) || property.isAnnotationPresent(EmbeddedId.class) || returnedClass.isAnnotationPresent(Embeddable.class);
            if (isComponent) {
                String referencedEntityName = null;
                if (isOverridden) {
                    final PropertyData mapsIdProperty = BinderHelper.getPropertyOverriddenByMapperOrMapsId(isId, propertyHolder, property.getName(), context);
                    referencedEntityName = mapsIdProperty.getClassOrElementName();
                }
                AccessType propertyAccessor = entityBinder.getPropertyAccessor(property);
                propertyBinder = bindComponent(inferredData, propertyHolder, propertyAccessor, entityBinder, isIdentifierMapper, context, isComponentEmbedded, isId, inheritanceStatePerClass, referencedEntityName, isOverridden ? (Ejb3JoinColumn[]) columns : null);
            } else {
                //provide the basic property mapping
                boolean optional = true;
                boolean lazy = false;
                if (property.isAnnotationPresent(Basic.class)) {
                    Basic ann = property.getAnnotation(Basic.class);
                    optional = ann.optional();
                    lazy = ann.fetch() == FetchType.LAZY;
                }
                //implicit type will check basic types and Serializable classes
                if (isId || (!optional && nullability != Nullability.FORCED_NULL)) {
                    //force columns to not null
                    for (Ejb3Column col : columns) {
                        if (isId && col.isFormula()) {
                            throw new CannotForceNonNullableException(String.format(Locale.ROOT, "Identifier property [%s] cannot contain formula mapping [%s]", HCANNHelper.annotatedElementSignature(property), col.getFormulaString()));
                        }
                        col.forceNotNull();
                    }
                }
                propertyBinder.setLazy(lazy);
                propertyBinder.setColumns(columns);
                if (isOverridden) {
                    final PropertyData mapsIdProperty = BinderHelper.getPropertyOverriddenByMapperOrMapsId(isId, propertyHolder, property.getName(), context);
                    propertyBinder.setReferencedEntityName(mapsIdProperty.getClassOrElementName());
                }
                propertyBinder.makePropertyValueAndBind();
            }
            if (isOverridden) {
                final PropertyData mapsIdProperty = BinderHelper.getPropertyOverriddenByMapperOrMapsId(isId, propertyHolder, property.getName(), context);
                Map<String, IdentifierGeneratorDefinition> localGenerators = (HashMap<String, IdentifierGeneratorDefinition>) classGenerators.clone();
                final IdentifierGeneratorDefinition.Builder foreignGeneratorBuilder = new IdentifierGeneratorDefinition.Builder();
                foreignGeneratorBuilder.setName("Hibernate-local--foreign generator");
                foreignGeneratorBuilder.setStrategy("foreign");
                foreignGeneratorBuilder.addParam("property", mapsIdProperty.getPropertyName());
                final IdentifierGeneratorDefinition foreignGenerator = foreignGeneratorBuilder.build();
                localGenerators.put(foreignGenerator.getName(), foreignGenerator);
                BinderHelper.makeIdGenerator((SimpleValue) propertyBinder.getValue(), foreignGenerator.getStrategy(), foreignGenerator.getName(), context, localGenerators);
            }
            if (isId) {
                //components and regular basic types create SimpleValue objects
                final SimpleValue value = (SimpleValue) propertyBinder.getValue();
                if (!isOverridden) {
                    processId(propertyHolder, inferredData, value, classGenerators, isIdentifierMapper, context);
                }
            }
        }
    }
    //init index
    //process indexes afterQuery everything: in second pass, many to one has to be done beforeQuery indexes
    Index index = property.getAnnotation(Index.class);
    if (index != null) {
        if (joinColumns != null) {
            for (Ejb3Column column : joinColumns) {
                column.addIndex(index, inSecondPass);
            }
        } else {
            if (columns != null) {
                for (Ejb3Column column : columns) {
                    column.addIndex(index, inSecondPass);
                }
            }
        }
    }
    // Natural ID columns must reside in one single UniqueKey within the Table.
    // For now, simply ensure consistent naming.
    // TODO: AFAIK, there really isn't a reason for these UKs to be created
    // on the secondPass.  This whole area should go away...
    NaturalId naturalIdAnn = property.getAnnotation(NaturalId.class);
    if (naturalIdAnn != null) {
        if (joinColumns != null) {
            for (Ejb3Column column : joinColumns) {
                String keyName = "UK_" + Constraint.hashedName(column.getTable().getName() + "_NaturalID");
                column.addUniqueKey(keyName, inSecondPass);
            }
        } else {
            for (Ejb3Column column : columns) {
                String keyName = "UK_" + Constraint.hashedName(column.getTable().getName() + "_NaturalID");
                column.addUniqueKey(keyName, inSecondPass);
            }
        }
    }
}

Example 5 with OneToMany

use of javax.persistence.OneToMany in project hibernate-orm by hibernate.

the class PersistentAttributesHelper method getTargetEntityClass.

public static CtClass getTargetEntityClass(CtClass managedCtClass, CtField persistentField) throws NotFoundException {
    // get targetEntity defined in the annotation
    try {
        OneToOne oto = PersistentAttributesHelper.getAnnotation(persistentField, OneToOne.class);
        OneToMany otm = PersistentAttributesHelper.getAnnotation(persistentField, OneToMany.class);
        ManyToOne mto = PersistentAttributesHelper.getAnnotation(persistentField, ManyToOne.class);
        ManyToMany mtm = PersistentAttributesHelper.getAnnotation(persistentField, ManyToMany.class);
        Class<?> targetClass = null;
        if (oto != null) {
            targetClass = oto.targetEntity();
        }
        if (otm != null) {
            targetClass = otm.targetEntity();
        }
        if (mto != null) {
            targetClass = mto.targetEntity();
        }
        if (mtm != null) {
            targetClass = mtm.targetEntity();
        }
        if (targetClass != null && targetClass != void.class) {
            return managedCtClass.getClassPool().get(targetClass.getName());
        }
    } catch (NotFoundException ignore) {
    }
    // infer targetEntity from generic type signature
    String inferredTypeName = inferTypeName(managedCtClass, persistentField.getName());
    return inferredTypeName == null ? null : managedCtClass.getClassPool().get(inferredTypeName);
}