Examples with AttributeNodeImplementor org.hibernate.graph.spi.AttributeNodeImplementor used on opensource projects

Example 1 with AttributeNodeImplementor

use of org.hibernate.graph.spi.AttributeNodeImplementor in project hibernate-orm by hibernate.

the class AbstractEntityGraphVisitationStrategy method startingCollectionIndex.

@Override
public void startingCollectionIndex(final CollectionIndexDefinition indexDefinition) {
    AttributeNodeImplementor attributeNode = attributeStack.peekLast();
    GraphNodeImplementor subGraphNode = NON_EXIST_SUBGRAPH_NODE;
    Map<Class, Subgraph> subGraphs = attributeNode.getKeySubgraphs();
    Class javaType = indexDefinition.getType().getReturnedClass();
    if (!subGraphs.isEmpty() && subGraphs.containsKey(javaType)) {
        subGraphNode = (GraphNodeImplementor) subGraphs.get(javaType);
    }
    graphStack.addLast(subGraphNode);
    super.startingCollectionIndex(indexDefinition);
}

Example 2 with AttributeNodeImplementor

use of org.hibernate.graph.spi.AttributeNodeImplementor in project hibernate-orm by hibernate.

the class AbstractEntityGraphVisitationStrategy method buildAttributeNodeMap.

/**
	 * Build "name" -- "attribute node" map from the current entity graph we're visiting.
	 */
protected Map<String, AttributeNodeImplementor> buildAttributeNodeMap() {
    GraphNodeImplementor graphNode = graphStack.peekLast();
    List<AttributeNodeImplementor<?>> attributeNodeImplementors = graphNode.attributeImplementorNodes();
    Map<String, AttributeNodeImplementor> attributeNodeImplementorMap = attributeNodeImplementors.isEmpty() ? Collections.<String, AttributeNodeImplementor>emptyMap() : new HashMap<String, AttributeNodeImplementor>(attributeNodeImplementors.size());
    for (AttributeNodeImplementor attribute : attributeNodeImplementors) {
        attributeNodeImplementorMap.put(attribute.getAttributeName(), attribute);
    }
    return attributeNodeImplementorMap;
}

Example 3 with AttributeNodeImplementor

use of org.hibernate.graph.spi.AttributeNodeImplementor in project hibernate-orm by hibernate.

the class AbstractEntityGraphVisitationStrategy method startingCollectionElements.

@Override
public void startingCollectionElements(final CollectionElementDefinition elementDefinition) {
    AttributeNodeImplementor attributeNode = attributeStack.peekLast();
    GraphNodeImplementor subGraphNode = NON_EXIST_SUBGRAPH_NODE;
    Map<Class, Subgraph> subGraphs = attributeNode.getSubgraphs();
    Class javaType = elementDefinition.getType().getReturnedClass();
    if (!subGraphs.isEmpty() && subGraphs.containsKey(javaType)) {
        subGraphNode = (GraphNodeImplementor) subGraphs.get(javaType);
    }
    graphStack.addLast(subGraphNode);
    super.startingCollectionElements(elementDefinition);
}

Example 4 with AttributeNodeImplementor

use of org.hibernate.graph.spi.AttributeNodeImplementor in project hibernate-orm by hibernate.

the class AbstractEntityGraphVisitationStrategy method startingAttribute.

/**
	 * I'm using NULL-OBJECT pattern here, for attributes that not existing in the EntityGraph,
	 * a predefined NULL-ATTRIBUTE-NODE is pushed to the stack.
	 *
	 * and for an not existing sub graph, a predefined NULL-SUBGRAPH is pushed to the stack.
	 *
	 * So, whenever we're start visiting an attribute, there will be a attribute node pushed to the attribute stack,
	 * and a subgraph node pushed to the graph stack.
	 *
	 * when we're finish visiting an attribute, these two will be poped from each stack.
	 */
@Override
public boolean startingAttribute(AttributeDefinition attributeDefinition) {
    Map<String, AttributeNodeImplementor> attributeMap = attributeMapStack.peekLast();
    final String attrName = attributeDefinition.getName();
    AttributeNodeImplementor attributeNode = NON_EXIST_ATTRIBUTE_NODE;
    GraphNodeImplementor subGraphNode = NON_EXIST_SUBGRAPH_NODE;
    //the attribute is in the EntityGraph, so, let's continue
    if (attributeMap.containsKey(attrName)) {
        attributeNode = attributeMap.get(attrName);
        //here we need to check if there is a subgraph (or sub key graph if it is an indexed attribute )
        Map<Class, Subgraph> subGraphs = attributeNode.getSubgraphs();
        Class javaType = attributeDefinition.getType().getReturnedClass();
        if (!subGraphs.isEmpty() && subGraphs.containsKey(javaType)) {
            subGraphNode = (GraphNodeImplementor) subGraphs.get(javaType);
        }
    }
    attributeStack.addLast(attributeNode);
    graphStack.addLast(subGraphNode);
    return super.startingAttribute(attributeDefinition);
}