/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*
*/
package org.apache.directory.studio.ldapbrowser.core.model.filter;
import org.apache.directory.studio.ldapbrowser.core.model.filter.parser.LdapFilterToken;
/**
* The LdapNotFilterComponent represents an NOT filter branch.
*
* @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a>
* @version $Rev$, $Date$
*/
public class LdapNotFilterComponent extends LdapFilterComponent
{
/**
* Creates a new instance of LdapNotFilterComponent.
*
* @param parent the parent filter
*/
public LdapNotFilterComponent( LdapFilter parent )
{
super( parent );
}
/**
* @see org.apache.directory.studio.ldapbrowser.core.model.filter.LdapFilterComponent#setStartToken(org.apache.directory.studio.ldapbrowser.core.model.filter.parser.LdapFilterToken)
*/
public boolean setStartToken( LdapFilterToken notToken )
{
if ( notToken != null && notToken.getType() == LdapFilterToken.NOT )
{
return super.setStartToken( notToken );
}
else
{
return false;
}
}
/**
* @see org.apache.directory.studio.ldapbrowser.core.model.filter.LdapFilterComponent#addFilter(org.apache.directory.studio.ldapbrowser.core.model.filter.LdapFilter)
*/
public boolean addFilter( LdapFilter filter )
{
if ( filterList.isEmpty() )
{
return super.addFilter( filter );
}
else
{
// There is already a filter in the list. A NOT filter
// can only contain one filter.
return false;
}
}
/**
* @see org.apache.directory.studio.ldapbrowser.core.model.filter.LdapFilterComponent#getInvalidCause()
*/
public String getInvalidCause()
{
if ( startToken == null )
{
return "Missing NOT character '!'";
}
else if ( filterList == null || filterList.isEmpty() )
{
return "Missing filter expression";
}
else
{
return "Invalid NOT filter";
}
}
/**
* @see java.lang.Object#toString()
*/
public String toString()
{
return ( startToken != null ? "!" : "" ) + ( !filterList.isEmpty() ? filterList.get( 0 ).toString() : "" );
}
}
|