001/*
002 *  Licensed to the Apache Software Foundation (ASF) under one
003 *  or more contributor license agreements.  See the NOTICE file
004 *  distributed with this work for additional information
005 *  regarding copyright ownership.  The ASF licenses this file
006 *  to you under the Apache License, Version 2.0 (the
007 *  "License"); you may not use this file except in compliance
008 *  with the License.  You may obtain a copy of the License at
009 *  
010 *    http://www.apache.org/licenses/LICENSE-2.0
011 *  
012 *  Unless required by applicable law or agreed to in writing,
013 *  software distributed under the License is distributed on an
014 *  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
015 *  KIND, either express or implied.  See the License for the
016 *  specific language governing permissions and limitations
017 *  under the License. 
018 *  
019 */
020package org.apache.directory.shared.ldap.model.filter;
021
022import org.apache.directory.shared.ldap.model.entry.Value;
023import org.apache.directory.shared.ldap.model.schema.AttributeType;
024
025/**
026 * A simple assertion value node.
027 * 
028 * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
029 */
030public class ApproximateNode<T> extends SimpleNode<T>
031{
032    /**
033     * Creates a new ApproximateNode object.
034     * 
035     * @param attributeType the attribute type
036     * @param value the value to test for
037     */
038    public ApproximateNode( AttributeType attributeType, Value<T> value )
039    {
040        super( attributeType, value, AssertionType.APPROXIMATE );
041    }
042
043    
044    /**
045     * Creates a new ApproximateNode object.
046     * 
047     * @param attribute the attribute name
048     * @param value the value to test for
049     */
050    public ApproximateNode( String attribute, Value<T> value )
051    {
052        super( attribute, value, AssertionType.APPROXIMATE );
053    }
054
055    
056    /**
057     * @see Object#toString()
058     * @return A string representing the AndNode
059     */
060    public String toString()
061    {
062        StringBuilder buf = new StringBuilder();
063    
064        buf.append( '(' );
065        
066        if ( attributeType != null )
067        {
068            buf.append( attributeType.getName() );
069        }
070        else
071        {
072            buf.append( attribute );
073        }
074        
075        buf.append( "~=" );
076
077        Value<?> escapedValue = getEscapedValue();
078        if ( !escapedValue.isNull())
079        {
080            buf.append( escapedValue );
081        }
082
083        buf.append( super.toString() );
084        
085        buf.append( ')' );
086        
087        return buf.toString();
088    }
089}