Examples with EJBQLException org.apache.cayenne.ejbql.EJBQLException used on opensource projects

Example 16 with EJBQLException

use of org.apache.cayenne.ejbql.EJBQLException in project cayenne by apache.

the class EJBQLPathTranslator method visitIdentifier.

@Override
public boolean visitIdentifier(EJBQLExpression expression) {
    ClassDescriptor descriptor = context.getEntityDescriptor(expression.getText());
    if (descriptor == null) {
        throw new EJBQLException("Invalid identification variable: " + expression.getText());
    }
    this.currentEntity = descriptor.getEntity();
    this.idPath = expression.getText();
    this.joinMarker = EJBQLJoinAppender.makeJoinTailMarker(idPath);
    this.fullPath = idPath;
    return true;
}

Example 17 with EJBQLException

use of org.apache.cayenne.ejbql.EJBQLException in project cayenne by apache.

the class EJBQLPathTranslator method processIntermediatePathComponent.

protected void processIntermediatePathComponent() {
    ObjRelationship relationship = currentEntity.getRelationship(lastPathComponent);
    if (relationship == null) {
        throw new EJBQLException("Unknown relationship '" + lastPathComponent + "' for entity '" + currentEntity.getName() + "'");
    }
    this.currentEntity = (ObjEntity) relationship.getTargetEntity();
}

Example 18 with EJBQLException

use of org.apache.cayenne.ejbql.EJBQLException in project cayenne by apache.

the class EJBQLSelectColumnsTranslator method visitDbPath.

@Override
public boolean visitDbPath(EJBQLExpression expression, int finishedChildIndex) {
    EJBQLDbPathTranslator pathTranslator = new EJBQLDbPathTranslator(context) {

        @Override
        protected void appendMultiColumnPath(EJBQLMultiColumnOperand operand) {
            throw new EJBQLException("Can't use multi-column paths in column clause");
        }

        @Override
        protected void processTerminatingRelationship(DbRelationship relationship) {
            Map<String, String> xfields = null;
            if (context.isAppendingResultColumns()) {
                xfields = context.nextEntityResult().getFields();
            }
            final Map<String, String> fields = xfields;
            DbEntity table = (DbEntity) relationship.getTargetEntity();
            Collection<DbAttribute> dbAttr = table.getAttributes();
            Iterator<DbAttribute> it = dbAttr.iterator();
            if (dbAttr.size() > 0) {
                resolveJoin();
            }
            String alias = this.lastAlias != null ? lastAlias : context.getTableAlias(idPath, context.getQuotingStrategy().quotedFullyQualifiedName(table));
            boolean first = true;
            while (it.hasNext()) {
                context.append(!first ? ", " : " ");
                DbAttribute dbAttribute = it.next();
                appendColumn(TypesMapping.getJavaBySqlType(dbAttribute.getType()), alias, dbAttribute, fields != null ? fields.get(dbAttribute.getName()) : "");
                first = false;
            }
        }

        @Override
        protected void processTerminatingAttribute(DbAttribute attribute) {
            String alias = this.lastAlias != null ? lastAlias : context.getTableAlias(idPath, context.getQuotingStrategy().quotedFullyQualifiedName(currentEntity));
            appendColumn(TypesMapping.getJavaBySqlType(attribute.getType()), alias, attribute, context.isAppendingResultColumns() ? context.nextColumnAlias() : "");
        }
    };
    expression.visit(pathTranslator);
    return false;
}

Example 19 with EJBQLException

use of org.apache.cayenne.ejbql.EJBQLException in project cayenne by apache.

the class EJBQLSelectColumnsTranslator method visitPath.

@Override
public boolean visitPath(EJBQLExpression expression, int finishedChildIndex) {
    EJBQLPathTranslator pathTranslator = new EJBQLPathTranslator(context) {

        @Override
        protected void appendMultiColumnPath(EJBQLMultiColumnOperand operand) {
            throw new EJBQLException("Can't use multi-column paths in column clause");
        }

        @Override
        protected void processTerminatingRelationship(ObjRelationship relationship) {
            Map<String, String> xfields = null;
            if (context.isAppendingResultColumns()) {
                xfields = context.nextEntityResult().getFields();
            }
            final Map<String, String> fields = xfields;
            Collection<DbAttribute> dbAttr = ((ObjEntity) relationship.getTargetEntity()).getDbEntity().getAttributes();
            DbRelationship dbRelationship = relationship.getDbRelationships().get(0);
            DbEntity table = (DbEntity) dbRelationship.getTargetEntity();
            Iterator<DbAttribute> it = dbAttr.iterator();
            if (dbAttr.size() > 0) {
                resolveJoin();
            }
            String alias = this.lastAlias != null ? lastAlias : context.getTableAlias(idPath, context.getQuotingStrategy().quotedFullyQualifiedName(table));
            boolean first = true;
            while (it.hasNext()) {
                context.append(!first ? ", " : " ");
                DbAttribute dbAttribute = it.next();
                appendColumn(TypesMapping.getJavaBySqlType(dbAttribute.getType()), alias, dbAttribute, fields != null ? fields.get(dbAttribute.getName()) : "");
                first = false;
            }
        }

        @Override
        protected void processTerminatingAttribute(ObjAttribute attribute) {
            DbEntity table = currentEntity.getDbEntity();
            String alias = this.lastAlias != null ? lastAlias : context.getTableAlias(idPath, context.getQuotingStrategy().quotedFullyQualifiedName(table));
            if (attribute.isFlattened()) {
                Iterator<?> dbPathIterator = attribute.getDbPathIterator();
                EJBQLTableId lhsId = new EJBQLTableId(idPath);
                while (dbPathIterator.hasNext()) {
                    Object pathPart = dbPathIterator.next();
                    // later when appending table
                    if (pathPart == null) {
                        throw new CayenneRuntimeException("ObjAttribute has no component: %s", attribute.getName());
                    } else if (pathPart instanceof DbAttribute) {
                        DbAttribute dbAttribute = (DbAttribute) pathPart;
                        appendColumn(attribute.getType(), context.getTableAlias(lhsId.getEntityId(), context.getQuotingStrategy().quotedFullyQualifiedName((DbEntity) dbAttribute.getEntity())), dbAttribute, context.isAppendingResultColumns() ? context.nextColumnAlias() : "");
                    }
                }
            } else {
                DbAttribute dbAttribute = attribute.getDbAttribute();
                appendColumn(attribute.getType(), alias, dbAttribute, context.isAppendingResultColumns() ? context.nextColumnAlias() : "");
            }
        }
    };
    expression.visit(pathTranslator);
    return false;
}