Package org.eclipse.persistence.internal.expressions

Examples of org.eclipse.persistence.internal.expressions.QueryKeyExpression

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        if (expression.isMapEntryExpression()){
            MapEntryExpression teExpression = (MapEntryExpression)expression;
           
            // get the expression that we want the table entry for
            QueryKeyExpression baseExpression = (QueryKeyExpression)teExpression.getBaseExpression();
           
            // get the expression that owns the mapping for the table entry
            Expression owningExpression = baseExpression.getBaseExpression();
            ClassDescriptor owningDescriptor = getLeafDescriptorFor(owningExpression, rootDescriptor);
           
            // Get the mapping that owns the table
            CollectionMapping mapping = (CollectionMapping)owningDescriptor.getObjectBuilder().getMappingForAttributeName(baseExpression.getName());
           
            if (teExpression.shouldReturnMapEntry()){
                return mapping;
            }
            if (mapping.getContainerPolicy().isMappedKeyMapPolicy()){
                MappedKeyMapContainerPolicy policy = (MappedKeyMapContainerPolicy)mapping.getContainerPolicy();
                return (DatabaseMapping)policy.getKeyMapping();
            }
            return mapping;
        }

        QueryKeyExpression qkExpression = (QueryKeyExpression)expression;
        Expression baseExpression = qkExpression.getBaseExpression();

        ClassDescriptor descriptor = getLeafDescriptorFor(baseExpression, rootDescriptor);
        if (descriptor == null){
            return null;
        }
        return descriptor.getObjectBuilder().getMappingForAttributeName(qkExpression.getName());
    }
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            return false;
        }
        List<Expression> partialAttributeExpressions = getPartialAttributeExpressions();
        int size = partialAttributeExpressions.size();
        for (int index = 0; index < size; index++) {
            QueryKeyExpression expression = (QueryKeyExpression)partialAttributeExpressions.get(index);
            while (!expression.getBaseExpression().isExpressionBuilder()) {
                expression = (QueryKeyExpression)expression.getBaseExpression();
            }
            if (expression.getName().equals(attributeName)) {
                return true;
            }
        }
        return false;
    }
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    * Iterate through a list of expressions searching for the given attribute name.
    * Return true if it is found, false otherwise.
    */
    protected boolean isAttributeNameInJoinedExpressionList(String attributeName, List joinedExpressionList) {
        for (Iterator joinEnum = joinedExpressionList.iterator(); joinEnum.hasNext();) {
            QueryKeyExpression expression = (QueryKeyExpression)joinEnum.next();
            while (!expression.getBaseExpression().isExpressionBuilder()) {
                expression = (QueryKeyExpression)expression.getBaseExpression();
            }
            if (expression.getName().equals(attributeName)) {
                return true;
            }
        }
        return false;
    }
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    protected void prepareJoinExpression(Expression expression, AbstractSession session) {
        // Must be query key expression.
        if (!expression.isQueryKeyExpression()) {
            throw QueryException.mappingForExpressionDoesNotSupportJoining(expression);
        }
        QueryKeyExpression objectExpression = (QueryKeyExpression)expression;

        // Expression may not have been initialized.
        objectExpression.getBuilder().setSession(session.getRootSession(null));
        if (objectExpression.getBuilder().getQueryClass() == null){
            objectExpression.getBuilder().setQueryClass(this.descriptor.getJavaClass());
        }
        // Can only join relationships.
        if ((objectExpression.getMapping() == null) || (!objectExpression.getMapping().isJoiningSupported())) {
            throw QueryException.mappingForExpressionDoesNotSupportJoining(objectExpression);
        }

        // Search if any of the expression traverse a 1-m.
        ObjectExpression baseExpression = objectExpression;
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            return false;
        }
        List<Expression> batchReadAttributeExpressions = this.attributeExpressions;
        int size = batchReadAttributeExpressions.size();
        for (int index = 0; index < size; index++) {
            QueryKeyExpression expression = (QueryKeyExpression)batchReadAttributeExpressions.get(index);
            while (!expression.getBaseExpression().isExpressionBuilder()) {
                expression = (QueryKeyExpression)expression.getBaseExpression();
            }
            if (expression.getName().equals(attributeName)) {
                return true;
            }
        }
        return false;
    }
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    * Iterate through a list of expressions searching for the given attribute name.
    * Return true if it is found, false otherwise.
    */
    protected boolean isAttributeNameInJoinedExpressionList(String attributeName, List joinedExpressionList) {
        for (Iterator joinEnum = joinedExpressionList.iterator(); joinEnum.hasNext();) {
            QueryKeyExpression expression = (QueryKeyExpression)joinEnum.next();
            while (!expression.getBaseExpression().isExpressionBuilder()) {
                expression = (QueryKeyExpression)expression.getBaseExpression();
            }
            if (expression.getName().equals(attributeName)) {
                return true;
            }
        }
        return false;
    }
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    protected Expression prepareJoinExpression(Expression expression, AbstractSession session) {
        // Must be query key expression.
        if (!expression.isQueryKeyExpression()) {
            throw QueryException.mappingForExpressionDoesNotSupportJoining(expression);
        }
        QueryKeyExpression objectExpression = (QueryKeyExpression)expression;

        // Expression may not have been initialized.
        if (objectExpression.getBuilder().getQueryClass() == null) {
            objectExpression = (QueryKeyExpression)objectExpression.rebuildOn(this.baseExpressionBuilder);
           
            if (objectExpression.getBuilder().getQueryClass() == null) {
                objectExpression.getBuilder().setQueryClass(this.descriptor.getJavaClass());
            }
        }
        objectExpression.getBuilder().setSession(session.getRootSession(null));
       
        // Can only join relationships.
        if ((objectExpression.getMapping() == null) || (!objectExpression.getMapping().isJoiningSupported())) {
            throw QueryException.mappingForExpressionDoesNotSupportJoining(objectExpression);
        }

        // Search if any of the expression traverse a 1-m.
        ObjectExpression baseExpression = objectExpression;
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            return false;
        }
        List<Expression> batchReadAttributeExpressions = this.attributeExpressions;
        int size = batchReadAttributeExpressions.size();
        for (int index = 0; index < size; index++) {
            QueryKeyExpression expression = (QueryKeyExpression)batchReadAttributeExpressions.get(index);
            while (!expression.getBaseExpression().isExpressionBuilder()) {
                expression = (QueryKeyExpression)expression.getBaseExpression();
            }
            if (expression.getName().equals(attributeName)) {
                return true;
            }
        }
        return false;
    }
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            return false;
        }
        List<Expression> partialAttributeExpressions = getPartialAttributeExpressions();
        int size = partialAttributeExpressions.size();
        for (int index = 0; index < size; index++) {
            QueryKeyExpression expression = (QueryKeyExpression)partialAttributeExpressions.get(index);
            while (!expression.getBaseExpression().isExpressionBuilder()) {
                expression = (QueryKeyExpression)expression.getBaseExpression();
            }
            if (expression.getName().equals(attributeName)) {
                return true;
            }
        }
        return false;
    }
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        if (expression.isMapEntryExpression()){
            MapEntryExpression teExpression = (MapEntryExpression)expression;
           
            // get the expression that we want the table entry for
            QueryKeyExpression baseExpression = (QueryKeyExpression)teExpression.getBaseExpression();
           
            // get the expression that owns the mapping for the table entry
            Expression owningExpression = baseExpression.getBaseExpression();
            ClassDescriptor owningDescriptor = getLeafDescriptorFor(owningExpression, rootDescriptor);
           
            // Get the mapping that owns the table
            CollectionMapping mapping = (CollectionMapping)owningDescriptor.getObjectBuilder().getMappingForAttributeName(baseExpression.getName());
           
            if (teExpression.shouldReturnMapEntry()){
                return mapping;
            }
            if (mapping.getContainerPolicy().isMappedKeyMapPolicy()){
                MappedKeyMapContainerPolicy policy = (MappedKeyMapContainerPolicy)mapping.getContainerPolicy();
                return (DatabaseMapping)policy.getKeyMapping();
            }
            return mapping;
        }

        QueryKeyExpression qkExpression = (QueryKeyExpression)expression;
        Expression baseExpression = qkExpression.getBaseExpression();

        ClassDescriptor descriptor = getLeafDescriptorFor(baseExpression, rootDescriptor);
        if (descriptor == null){
            return null;
        }
        return descriptor.getObjectBuilder().getMappingForAttributeName(qkExpression.getName());
    }
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Related Classes of org.eclipse.persistence.internal.expressions.QueryKeyExpression

  • org.eclipse.persistence.descriptors.ClassDescriptor
  • org.eclipse.persistence.descriptors.FetchGroupManager
  • org.eclipse.persistence.internal.queries.JoinedAttributeManager
  • org.eclipse.persistence.internal.queries.MappedKeyMapContainerPolicy
  • org.eclipse.persistence.internal.sessions.UnitOfWorkImpl
  • org.eclipse.persistence.nosql.adapters.mongo.MongoPlatform
  • org.eclipse.persistence.queries.BatchFetchPolicy
  • org.eclipse.persistence.queries.ObjectLevelReadQuery
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