Examples with ManyToOne org.apache.openejb.jee.jpa.ManyToOne used on opensource projects

Example 1 with ManyToOne

use of org.apache.openejb.jee.jpa.ManyToOne in project tomee by apache.

the class SunConversion method mergeEntityMappings.

public void mergeEntityMappings(final Map<String, EntityData> entities, final String moduleId, final EjbModule ejbModule, final EntityMappings entityMappings, final SunCmpMapping sunCmpMapping) {
    for (final EntityMapping bean : sunCmpMapping.getEntityMapping()) {
        final SunConversion.EntityData entityData = entities.get(moduleId + "#" + bean.getEjbName());
        if (entityData == null) {
            // todo warn no such ejb in the ejb-jar.xml
            continue;
        }
        final Table table = new Table();
        // table.setSchema(schema);
        table.setName(bean.getTableName());
        entityData.entity.setTable(table);
        for (final org.apache.openejb.jee.sun.SecondaryTable sunSecondaryTable : bean.getSecondaryTable()) {
            final SecondaryTable secondaryTable = new SecondaryTable();
            secondaryTable.setName(sunSecondaryTable.getTableName());
            for (final ColumnPair columnPair : sunSecondaryTable.getColumnPair()) {
                SunColumnName localColumnName = new SunColumnName(columnPair.getColumnName().get(0), table.getName());
                SunColumnName referencedColumnName = new SunColumnName(columnPair.getColumnName().get(1), table.getName());
                // if user specified in reverse order, swap
                if (localColumnName.table != null) {
                    final SunColumnName temp = localColumnName;
                    localColumnName = referencedColumnName;
                    referencedColumnName = temp;
                }
                final PrimaryKeyJoinColumn primaryKeyJoinColumn = new PrimaryKeyJoinColumn();
                primaryKeyJoinColumn.setName(localColumnName.column);
                primaryKeyJoinColumn.setReferencedColumnName(referencedColumnName.column);
                secondaryTable.getPrimaryKeyJoinColumn().add(primaryKeyJoinColumn);
            }
        }
        for (final CmpFieldMapping cmpFieldMapping : bean.getCmpFieldMapping()) {
            final String fieldName = cmpFieldMapping.getFieldName();
            final Field field = entityData.fields.get(fieldName);
            if (field == null) {
                // todo warn no such cmp-field in the ejb-jar.xml
                continue;
            }
            final boolean readOnly = cmpFieldMapping.getReadOnly() != null;
            for (final ColumnName columnName : cmpFieldMapping.getColumnName()) {
                final SunColumnName sunColumnName = new SunColumnName(columnName, table.getName());
                final Column column = new Column();
                column.setTable(sunColumnName.table);
                column.setName(sunColumnName.column);
                if (readOnly) {
                    column.setInsertable(false);
                    column.setUpdatable(false);
                }
                field.setColumn(column);
            }
        // todo set fetch lazy when fetchWith is null
        // FetchedWith fetchedWith = cmpFieldMapping.getFetchedWith();
        }
        for (final CmrFieldMapping cmrFieldMapping : bean.getCmrFieldMapping()) {
            final String fieldName = cmrFieldMapping.getCmrFieldName();
            cmrFieldMapping.getColumnPair();
            final RelationField field = entityData.relations.get(fieldName);
            if (field == null) {
                // todo warn no such cmr-field in the ejb-jar.xml
                continue;
            }
            if (field instanceof OneToOne) {
                for (final ColumnPair columnPair : cmrFieldMapping.getColumnPair()) {
                    SunColumnName localColumnName = new SunColumnName(columnPair.getColumnName().get(0), table.getName());
                    SunColumnName referencedColumnName = new SunColumnName(columnPair.getColumnName().get(1), table.getName());
                    // if user specified in reverse order, swap
                    if (localColumnName.table != null) {
                        final SunColumnName temp = localColumnName;
                        localColumnName = referencedColumnName;
                        referencedColumnName = temp;
                    }
                    final boolean isFk = !entityData.hasPkColumnMapping(localColumnName.column);
                    if (isFk) {
                        // Make sure that the field with the FK is marked as the owning field
                        field.setMappedBy(null);
                        field.getRelatedField().setMappedBy(field.getName());
                        final JoinColumn joinColumn = new JoinColumn();
                        joinColumn.setName(localColumnName.column);
                        joinColumn.setReferencedColumnName(referencedColumnName.column);
                        field.getJoinColumn().add(joinColumn);
                    }
                }
            } else if (field instanceof OneToMany) {
                // Bi-directional OneToMany do not have field mappings
                if (!field.getRelatedField().isSyntheticField()) {
                    continue;
                }
                for (final ColumnPair columnPair : cmrFieldMapping.getColumnPair()) {
                    SunColumnName localColumnName = new SunColumnName(columnPair.getColumnName().get(0), table.getName());
                    SunColumnName otherColumnName = new SunColumnName(columnPair.getColumnName().get(1), table.getName());
                    // if user specified in reverse order, swap
                    if (localColumnName.table != null) {
                        final SunColumnName temp = localColumnName;
                        localColumnName = otherColumnName;
                        otherColumnName = temp;
                    }
                    final JoinColumn joinColumn = new JoinColumn();
                    // for OneToMany the join column name is the other (fk) column
                    joinColumn.setName(otherColumnName.column);
                    // and the referenced column is the local (pk) column
                    joinColumn.setReferencedColumnName(localColumnName.column);
                    field.getRelatedField().getJoinColumn().add(joinColumn);
                }
            } else if (field instanceof ManyToOne) {
                for (final ColumnPair columnPair : cmrFieldMapping.getColumnPair()) {
                    SunColumnName localColumnName = new SunColumnName(columnPair.getColumnName().get(0), table.getName());
                    SunColumnName referencedColumnName = new SunColumnName(columnPair.getColumnName().get(1), table.getName());
                    // if user specified in reverse order, swap
                    if (localColumnName.table != null) {
                        final SunColumnName temp = localColumnName;
                        localColumnName = referencedColumnName;
                        referencedColumnName = temp;
                    }
                    final JoinColumn joinColumn = new JoinColumn();
                    joinColumn.setName(localColumnName.column);
                    joinColumn.setReferencedColumnName(referencedColumnName.column);
                    field.getJoinColumn().add(joinColumn);
                }
            } else {
                // skip the non owning side
                if (field.getMappedBy() != null) {
                    continue;
                }
                final JoinTable joinTable = new JoinTable();
                field.setJoinTable(joinTable);
                for (final ColumnPair columnPair : cmrFieldMapping.getColumnPair()) {
                    SunColumnName localColumnName = new SunColumnName(columnPair.getColumnName().get(0), table.getName());
                    SunColumnName joinTableColumnName = new SunColumnName(columnPair.getColumnName().get(1), table.getName());
                    if (localColumnName.table == null || joinTableColumnName.table == null) {
                        // if user specified in reverse order, swap
                        if (localColumnName.table != null) {
                            final SunColumnName temp = localColumnName;
                            localColumnName = joinTableColumnName;
                            joinTableColumnName = temp;
                        }
                        // join table is the table name of the referenced column
                        joinTable.setName(joinTableColumnName.table);
                        final JoinColumn joinColumn = new JoinColumn();
                        joinColumn.setName(joinTableColumnName.column);
                        joinColumn.setReferencedColumnName(localColumnName.column);
                        joinTable.getJoinColumn().add(joinColumn);
                    } else {
                        // if user specified in reverse order, swap
                        if (localColumnName.table.equals(joinTable.getName())) {
                            final SunColumnName temp = localColumnName;
                            localColumnName = joinTableColumnName;
                            joinTableColumnName = temp;
                        }
                        final JoinColumn joinColumn = new JoinColumn();
                        joinColumn.setName(joinTableColumnName.column);
                        joinColumn.setReferencedColumnName(localColumnName.column);
                        joinTable.getInverseJoinColumn().add(joinColumn);
                    }
                }
            }
        }
    }
}

Example 2 with ManyToOne

use of org.apache.openejb.jee.jpa.ManyToOne in project tomee by apache.

the class CmpJpaConversion method processRelationship.

private void processRelationship(final Map<String, Entity> entitiesByEjbName, final EjbRelation relation) throws OpenEJBException {
    final List<EjbRelationshipRole> roles = relation.getEjbRelationshipRole();
    // if we don't have two roles, the relation is bad so we skip it
    if (roles.size() != 2) {
        return;
    }
    // get left entity
    final EjbRelationshipRole leftRole = roles.get(0);
    final RelationshipRoleSource leftRoleSource = leftRole.getRelationshipRoleSource();
    final String leftEjbName = leftRoleSource == null ? null : leftRoleSource.getEjbName();
    final Entity leftEntity = entitiesByEjbName.get(leftEjbName);
    // get right entity
    final EjbRelationshipRole rightRole = roles.get(1);
    final RelationshipRoleSource rightRoleSource = rightRole.getRelationshipRoleSource();
    final String rightEjbName = rightRoleSource == null ? null : rightRoleSource.getEjbName();
    final Entity rightEntity = entitiesByEjbName.get(rightEjbName);
    // neither left or right have a mapping which is fine
    if (leftEntity == null && rightEntity == null) {
        return;
    }
    // left not found?
    if (leftEntity == null) {
        throw new OpenEJBException("Role source " + leftEjbName + " defined in relationship role " + relation.getEjbRelationName() + "::" + leftRole.getEjbRelationshipRoleName() + " not found");
    }
    // right not found?
    if (rightEntity == null) {
        throw new OpenEJBException("Role source " + rightEjbName + " defined in relationship role " + relation.getEjbRelationName() + "::" + rightRole.getEjbRelationshipRoleName() + " not found");
    }
    final Attributes rightAttributes = rightEntity.getAttributes();
    final Map<String, RelationField> rightRelationships = rightAttributes.getRelationshipFieldMap();
    final Attributes leftAttributes = leftEntity.getAttributes();
    final Map<String, RelationField> leftRelationships = leftAttributes.getRelationshipFieldMap();
    String leftFieldName = null;
    boolean leftSynthetic = false;
    if (leftRole.getCmrField() != null) {
        leftFieldName = leftRole.getCmrField().getCmrFieldName();
    } else {
        leftFieldName = rightEntity.getName() + "_" + rightRole.getCmrField().getCmrFieldName();
        leftSynthetic = true;
    }
    final boolean leftIsOne = leftRole.getMultiplicity() == Multiplicity.ONE;
    String rightFieldName = null;
    boolean rightSynthetic = false;
    if (rightRole.getCmrField() != null) {
        rightFieldName = rightRole.getCmrField().getCmrFieldName();
    } else {
        rightFieldName = leftEntity.getName() + "_" + leftRole.getCmrField().getCmrFieldName();
        rightSynthetic = true;
    }
    final boolean rightIsOne = rightRole.getMultiplicity() == Multiplicity.ONE;
    if (leftIsOne && rightIsOne) {
        // 
        // one-to-one
        // 
        // left
        OneToOne leftOneToOne = null;
        leftOneToOne = new OneToOne();
        leftOneToOne.setName(leftFieldName);
        leftOneToOne.setSyntheticField(leftSynthetic);
        setCascade(rightRole, leftOneToOne);
        addRelationship(leftOneToOne, leftRelationships, leftAttributes.getOneToOne());
        // right
        OneToOne rightOneToOne = null;
        rightOneToOne = new OneToOne();
        rightOneToOne.setName(rightFieldName);
        rightOneToOne.setSyntheticField(rightSynthetic);
        rightOneToOne.setMappedBy(leftFieldName);
        setCascade(leftRole, rightOneToOne);
        addRelationship(rightOneToOne, rightRelationships, rightAttributes.getOneToOne());
        // link
        leftOneToOne.setRelatedField(rightOneToOne);
        rightOneToOne.setRelatedField(leftOneToOne);
    } else if (leftIsOne && !rightIsOne) {
        // 
        // one-to-many
        // 
        // left
        OneToMany leftOneToMany = null;
        leftOneToMany = new OneToMany();
        leftOneToMany.setName(leftFieldName);
        leftOneToMany.setSyntheticField(leftSynthetic);
        leftOneToMany.setMappedBy(rightFieldName);
        setCascade(rightRole, leftOneToMany);
        addRelationship(leftOneToMany, leftRelationships, leftAttributes.getOneToMany());
        // right
        ManyToOne rightManyToOne = null;
        rightManyToOne = new ManyToOne();
        rightManyToOne.setName(rightFieldName);
        rightManyToOne.setSyntheticField(rightSynthetic);
        setCascade(leftRole, rightManyToOne);
        addRelationship(rightManyToOne, rightRelationships, rightAttributes.getManyToOne());
        // link
        leftOneToMany.setRelatedField(rightManyToOne);
        rightManyToOne.setRelatedField(leftOneToMany);
    } else if (!leftIsOne && rightIsOne) {
        // 
        // many-to-one
        // 
        // left
        ManyToOne leftManyToOne = null;
        leftManyToOne = new ManyToOne();
        leftManyToOne.setName(leftFieldName);
        leftManyToOne.setSyntheticField(leftSynthetic);
        setCascade(rightRole, leftManyToOne);
        addRelationship(leftManyToOne, leftRelationships, leftAttributes.getManyToOne());
        // right
        OneToMany rightOneToMany = null;
        rightOneToMany = new OneToMany();
        rightOneToMany.setName(rightFieldName);
        rightOneToMany.setSyntheticField(rightSynthetic);
        rightOneToMany.setMappedBy(leftFieldName);
        setCascade(leftRole, rightOneToMany);
        addRelationship(rightOneToMany, rightRelationships, rightAttributes.getOneToMany());
        // link
        leftManyToOne.setRelatedField(rightOneToMany);
        rightOneToMany.setRelatedField(leftManyToOne);
    } else if (!leftIsOne && !rightIsOne) {
        // 
        // many-to-many
        // 
        // left
        ManyToMany leftManyToMany = null;
        leftManyToMany = new ManyToMany();
        leftManyToMany.setName(leftFieldName);
        leftManyToMany.setSyntheticField(leftSynthetic);
        setCascade(rightRole, leftManyToMany);
        addRelationship(leftManyToMany, leftRelationships, leftAttributes.getManyToMany());
        // right
        ManyToMany rightManyToMany = null;
        rightManyToMany = new ManyToMany();
        rightManyToMany.setName(rightFieldName);
        rightManyToMany.setSyntheticField(rightSynthetic);
        rightManyToMany.setMappedBy(leftFieldName);
        setCascade(leftRole, rightManyToMany);
        addRelationship(rightManyToMany, rightRelationships, rightAttributes.getManyToMany());
        // link
        leftManyToMany.setRelatedField(rightManyToMany);
        rightManyToMany.setRelatedField(leftManyToMany);
    }
}