| /* |
| * 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.server.xdbm.search.evaluator; |
| |
| |
| import org.apache.directory.api.ldap.model.entry.Entry; |
| import org.apache.directory.api.ldap.model.exception.LdapException; |
| import org.apache.directory.api.ldap.model.filter.UndefinedNode; |
| import org.apache.directory.server.xdbm.IndexEntry; |
| import org.apache.directory.server.xdbm.Store; |
| import org.apache.directory.server.xdbm.search.Evaluator; |
| |
| |
| /** |
| * An Evaluator that always validate all the submitted values |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public class PassThroughEvaluator implements Evaluator<UndefinedNode> |
| { |
| /** The backend */ |
| private final Store db; |
| |
| |
| /** |
| * Create a new instance of the PassThroughEvaluator |
| * @throws Exception |
| */ |
| public PassThroughEvaluator( Store db ) |
| { |
| this.db = db; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean evaluate( IndexEntry<?, String> indexEntry ) throws LdapException |
| { |
| Entry entry = indexEntry.getEntry(); |
| |
| // resuscitate the entry if it has not been and set entry in IndexEntry |
| if ( null == entry ) |
| { |
| entry = db.fetch( indexEntry.getId() ); |
| |
| if ( null == entry ) |
| { |
| // The entry is not anymore present : get out |
| return false; |
| } |
| |
| indexEntry.setEntry( entry ); |
| } |
| |
| return true; |
| } |
| |
| |
| /** |
| * {@inheritDoc} |
| */ |
| public boolean evaluate( Entry entry ) throws Exception |
| { |
| return true; |
| } |
| |
| |
| /** |
| * Gets the expression used by this expression Evaluator. |
| * |
| * @return the AST for the expression |
| */ |
| public UndefinedNode getExpression() |
| { |
| return null; |
| } |
| |
| |
| /** |
| * @see Object#toString() |
| */ |
| public String toString( String tabs ) |
| { |
| StringBuilder sb = new StringBuilder(); |
| |
| sb.append( tabs ).append( "PassthroughEvaluator\n" ); |
| |
| return sb.toString(); |
| } |
| |
| |
| /** |
| * @see Object#toString() |
| */ |
| public String toString() |
| { |
| return toString( "" ); |
| } |
| } |