How to use

invalidCollectionNavigation

method

in

org.eclipse.persistence.exceptions.JPQLException

/** 
 * INTERNAL
 * Checks whether the left hand side of this dot node is navigable.
 */
private void checkNavigation(Node node, ParseTreeContext context) {
  TypeHelper typeHelper = context.getTypeHelper();
  // Checks whether the type of the dot node allows a navigation.
  Object type = node.getType();
  if (!typeHelper.isEntityClass(type) && 
    !typeHelper.isEmbeddable(type) &&
    !typeHelper.isEnumType(type)) {
    throw JPQLException.invalidNavigation(
      context.getQueryInfo(), node.getLine(), node.getColumn(),
      this.getAsString(), node.getAsString(), 
      typeHelper.getTypeName(type));
  }
  // Special check to disallow collection valued relationships
  if (node.isDotNode()) {
    Node left = node.getLeft();
    AttributeNode right = (AttributeNode)node.getRight();
    if (typeHelper.isCollectionValuedRelationship(
        left.getType(), right.getAttributeName())) {
      throw JPQLException.invalidCollectionNavigation(
        context.getQueryInfo(), right.getLine(), right.getColumn(),
        this.getAsString(), right.getAttributeName());
    }
  }
}
 

/**
 * INTERNAL
 * Checks whether the left hand side of this dot node is navigable.
 */
private void checkNavigation(Node node, ParseTreeContext context) {
  TypeHelper typeHelper = context.getTypeHelper();
  // Checks whether the type of the dot node allows a navigation.
  Object type = node.getType();
  if (!typeHelper.isEntityClass(type) &&
    !typeHelper.isEmbeddable(type) &&
    !typeHelper.isEnumType(type)) {
    throw JPQLException.invalidNavigation(
      context.getQueryInfo(), node.getLine(), node.getColumn(),
      this.getAsString(), node.getAsString(),
      typeHelper.getTypeName(type));
  }
  // Special check to disallow collection valued relationships
  if (node.isDotNode()) {
    Node left = node.getLeft();
    AttributeNode right = (AttributeNode)node.getRight();
    if (typeHelper.isCollectionValuedRelationship(
        left.getType(), right.getAttributeName())) {
      throw JPQLException.invalidCollectionNavigation(
        context.getQueryInfo(), right.getLine(), right.getColumn(),
        this.getAsString(), right.getAttributeName());
    }
  }
}

/** 
 * INTERNAL
 * Checks whether the left hand side of this dot node is navigable.
 */
private void checkNavigation(Node node, ParseTreeContext context) {
  TypeHelper typeHelper = context.getTypeHelper();
  // Checks whether the type of the dot node allows a navigation.
  Object type = node.getType();
  if (!typeHelper.isEntityClass(type) && 
    !typeHelper.isEmbeddable(type) &&
    !typeHelper.isEnumType(type)) {
    throw JPQLException.invalidNavigation(
      context.getQueryInfo(), node.getLine(), node.getColumn(),
      this.getAsString(), node.getAsString(), 
      typeHelper.getTypeName(type));
  }
  // Special check to disallow collection valued relationships
  if (node.isDotNode()) {
    Node left = node.getLeft();
    AttributeNode right = (AttributeNode)node.getRight();
    if (typeHelper.isCollectionValuedRelationship(
        left.getType(), right.getAttributeName())) {
      throw JPQLException.invalidCollectionNavigation(
        context.getQueryInfo(), right.getLine(), right.getColumn(),
        this.getAsString(), right.getAttributeName());
    }
  }
}