| /* |
| * 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 javaobject; |
| |
| import org.apache.geode.DataSerializable; |
| import org.apache.geode.Delta; |
| import org.apache.geode.InvalidDeltaException; |
| import org.apache.geode.cache.Declarable; |
| import org.apache.geode.Instantiator; |
| import java.io.DataInput; |
| import java.io.DataOutput; |
| import java.io.IOException; |
| import java.util.Properties; |
| |
| public class DeltaExample implements DataSerializable, Delta, Declarable |
| { |
| private int m_field1; |
| private int m_field2; |
| private int m_field3; |
| private int index; |
| |
| private transient boolean m_f1set; |
| private transient boolean m_f2set; |
| private transient boolean m_f3set; |
| |
| static |
| { |
| Instantiator.register(new Instantiator(DeltaExample.class, (byte)2) |
| { |
| public DataSerializable newInstance() |
| { |
| return new DeltaExample(); |
| } |
| }); |
| } |
| public DeltaExample() |
| { |
| reset(); |
| } |
| public DeltaExample(int field1, int field2, int field3) |
| { |
| m_field1 = field1; |
| m_field2 = field2; |
| m_field3 = field3; |
| reset(); |
| } |
| public boolean hasDelta() |
| { |
| return m_f1set || m_f2set || m_f3set; |
| } |
| |
| private void reset() |
| { |
| m_f1set = false; |
| m_f2set = false; |
| m_f3set = false; |
| } |
| |
| public void fromData(DataInput in) throws IOException |
| { |
| m_field1 = in.readInt(); |
| m_field2 = in.readInt(); |
| m_field3 = in.readInt(); |
| reset(); |
| } |
| |
| public void toData(DataOutput out) throws IOException |
| { |
| out.writeInt(m_field1); |
| out.writeInt(m_field2); |
| out.writeInt(m_field3); |
| } |
| |
| public void fromDelta(DataInput in) throws IOException |
| { |
| m_f1set = in.readBoolean(); |
| if (m_f1set) { |
| m_field1 = in.readInt(); |
| } |
| |
| m_f2set = in.readBoolean(); |
| if (m_f2set) { |
| m_field2 = in.readInt(); |
| } |
| |
| m_f3set = in.readBoolean(); |
| if (m_f3set) { |
| m_field3 = in.readInt(); |
| } |
| |
| reset(); |
| } |
| |
| public void toDelta(DataOutput out) throws IOException |
| { |
| out.writeBoolean(m_f1set); |
| if (m_f1set) { |
| out.writeInt(m_field1); |
| } |
| |
| out.writeBoolean(m_f2set); |
| if (m_f2set) { |
| out.writeInt(m_field2); |
| } |
| |
| out.writeBoolean(m_f3set); |
| if (m_f3set) { |
| out.writeInt(m_field3); |
| } |
| |
| reset(); |
| } |
| |
| public void init(Properties props) |
| { |
| m_field1 = 0; |
| m_field2 = 0; |
| m_field3 = 0; |
| reset(); |
| } |
| }; |