Examples of org.apache.directory.api.ldap.model.filter.FilterVisitor

org.apache.directory.api.ldap.model.filter.FilterVisitor

Filter expression tree node visitor interface. Note that this is a variation of the extrinsic visitor variation. It has the following advantages over the standard visitor pattern:

Visitor takes responsibility that a visitor can visit a node
Each visitor knows which types of concrete classes it can visit
New visitors can be created without changing the node class
New node classes can be added without having to change old visitors
Visitation order can be controled in every respect:

Visitation rejection with canVisit() and/or getOrder()
Recursive visitation ordering with isPrefix()
Child visitation ordering with getOrder()

@author Apache Directory Project




    @Test
    public void testAccept() throws Exception
    {
        assertNull( undefinedNode.accept( new FilterVisitor()
        {


            public Object visit( ExprNode node )
            {
                return null;

Examples of org.apache.directory.api.ldap.model.filter.FilterVisitor

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