| /* |
| * 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 |
| * |
| * https://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.api.ldap.codec.search; |
| |
| |
| import java.nio.ByteBuffer; |
| |
| import org.apache.directory.api.asn1.EncoderException; |
| |
| |
| /** |
| * An abstract Asn1Object used to store the filter. A filter is seen as a tree |
| * with a root. This class does nothing, it's just the root of all the different |
| * filters. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| */ |
| public abstract class Filter |
| { |
| /** The identifier of the associated TLV */ |
| int tlvId; |
| |
| /** The parent TLV id */ |
| protected int parentTlvId; |
| |
| /** The parent Filter */ |
| protected Filter parent; |
| |
| |
| /** |
| * The constructor. |
| * |
| * @param tlvId The TLV identifier |
| */ |
| public Filter( int tlvId ) |
| { |
| this.tlvId = tlvId; |
| } |
| |
| |
| /** |
| * The constructor. |
| */ |
| public Filter() |
| { |
| } |
| |
| |
| /** |
| * Get the parent |
| * |
| * @return Returns the parent. |
| */ |
| public Filter getParent() |
| { |
| return parent; |
| } |
| |
| |
| /** |
| * Get the parent |
| * |
| * @return Returns the parent. |
| */ |
| public int getParentTlvId() |
| { |
| return parentTlvId; |
| } |
| |
| |
| /** |
| * Set the parent |
| * |
| * @param parent The parent to set. |
| * @param parentTlvId The Parent TLV identifier |
| */ |
| public void setParent( Filter parent, int parentTlvId ) |
| { |
| this.parent = parent; |
| this.parentTlvId = parentTlvId; |
| } |
| |
| |
| /** |
| * @return The TLV identifier |
| */ |
| public int getTlvId() |
| { |
| return tlvId; |
| } |
| |
| |
| /** |
| * Compute the Filter length |
| * |
| * @return the encoded length |
| */ |
| public abstract int computeLength(); |
| |
| |
| /** |
| * Encode the Filter message to a PDU. |
| * |
| * @param buffer The buffer where to put the PDU |
| * @return The PDU. |
| * @throws EncoderException If the encoding failed |
| */ |
| public abstract ByteBuffer encode( ByteBuffer buffer ) throws EncoderException; |
| } |