org.apache.directory.shared.ldap.filter
Interface ExprNode

All Known Implementing Classes:

AbstractExprNode, AssertionNode, BranchNode, ExtensibleNode, LeafNode, PresenceNode, ScopeNode, SimpleNode, SubstringNode

public interface ExprNode

Root expression node interface which all expression nodes in the filter expression tree implement.

Version:

$Revision: 434411 $

Author:

Apache Directory Project

Method Summary

void	accept(FilterVisitor a_visitor) Element/node accept method for visitor pattern.
java.lang.Object	get(java.lang.Object a_key) Gets an annotation on the tree by key.
boolean	isLeaf() Tests to see if this node is a leaf or branch node.
java.lang.StringBuffer	printToBuffer(java.lang.StringBuffer a_buf) Recursively appends this String representation of this node and its descendents in prefix notation to a buffer.
void	set(java.lang.Object a_key, java.lang.Object a_value) Sets a annotation key to a value.

Method Detail

get

java.lang.Object get(java.lang.Object a_key)

Gets an annotation on the tree by key.

Parameters:

a_key - the annotation key.

Returns:

the annotation value.

set

void set(java.lang.Object a_key,
         java.lang.Object a_value)

Sets a annotation key to a value.

Parameters:

a_key - the annotation key.

a_value - the annotation value.

isLeaf

boolean isLeaf()

Tests to see if this node is a leaf or branch node.

Returns:

true if the node is a leaf,false otherwise

printToBuffer

java.lang.StringBuffer printToBuffer(java.lang.StringBuffer a_buf)

Recursively appends this String representation of this node and its descendents in prefix notation to a buffer.

Parameters:

a_buf - the buffer to append to.

accept

void accept(FilterVisitor a_visitor)

Element/node accept method for visitor pattern.

Parameters:

a_visitor - the filter expression tree structure visitor