org.apache.jackrabbit.spi.commons.query
Class AndQueryNode

java.lang.Object
  org.apache.jackrabbit.spi.commons.query.QueryNode
      org.apache.jackrabbit.spi.commons.query.NAryQueryNode
          org.apache.jackrabbit.spi.commons.query.AndQueryNode

public class AndQueryNode
extends NAryQueryNode

Implements a query node that defines an AND operation between arbitrary other QueryNodes.

Field Summary

Fields inherited from class org.apache.jackrabbit.spi.commons.query.NAryQueryNode

operands

Fields inherited from class org.apache.jackrabbit.spi.commons.query.QueryNode

TYPE_AND, TYPE_DEREF, TYPE_EXACT, TYPE_LOCATION, TYPE_NODETYPE, TYPE_NOT, TYPE_OR, TYPE_ORDER, TYPE_PATH, TYPE_PROP_FUNCTION, TYPE_RELATION, TYPE_ROOT, TYPE_TEXTSEARCH

Constructor Summary

protected

AndQueryNode(QueryNode parent) Creates a new AndQueryNode with a parent query node.

Method Summary

Object	accept(QueryNodeVisitor visitor, Object data) This method can return null to indicate that this AndQueryNode does not contain any operands.
boolean	equals(Object obj) Returns true if obj is the same type of QueryNode as this node and is equal to this node.
int	getType() Returns the type of this node.

Methods inherited from class org.apache.jackrabbit.spi.commons.query.NAryQueryNode

acceptOperands, addOperand, getNumOperands, getOperands, needsSystemTree, removeOperand

Methods inherited from class org.apache.jackrabbit.spi.commons.query.QueryNode

dump, getParent

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

AndQueryNode

protected AndQueryNode(QueryNode parent)

Creates a new AndQueryNode with a parent query node.

Parameters:

parent - the parent of this AndQueryNode.

Method Detail

accept

public Object accept(QueryNodeVisitor visitor,
                     Object data)
              throws RepositoryException

This method can return null to indicate that this AndQueryNode does not contain any operands. Accepts a QueryNodeVisitor and calls the apropriate visit method on the visitor depending on the concrete implementation of this QueryNode.

Specified by:

accept in class QueryNode

Parameters:

visitor - the visitor to call back.

data - arbitrary data for the visitor.

Returns:

the return value of the visitor.visit() call.

Throws:

RepositoryException

getType

public int getType()

Returns the type of this node.

Specified by:

getType in class QueryNode

Returns:

the type of this node.

equals

public boolean equals(Object obj)

Description copied from class: QueryNode

Returns true if obj is the same type of QueryNode as this node and is equal to this node.

Overrides:

equals in class NAryQueryNode

Parameters:

obj - the reference object with which to compare.

Returns:

true if obj is equal to this; false otherwise.