--- /dev/null
+/*
+ * Copyright 2005 the original author or authors.
+ *
+ * Licensed 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.wamblee.persistence;
+
+import java.io.Serializable;
+
+/**
+ * Default implementation of Persistent.
+ */
+public abstract class AbstractPersistent implements Persistent {
+
+ /**
+ * Primary key.
+ */
+ private Serializable _primaryKey;
+
+ /**
+ * Version.
+ */
+ private int _version;
+
+ /**
+ * Constructs the object.
+ *
+ */
+ protected AbstractPersistent() {
+ _primaryKey = null;
+ _version = -1;
+ }
+
+ /**
+ * Copy constructor.
+ * @param aPersistent Object to copy.
+ */
+ protected AbstractPersistent(AbstractPersistent aPersistent) {
+ _primaryKey = aPersistent._primaryKey;
+ _version = aPersistent._version;
+ }
+
+ /* (non-Javadoc)
+ * @see org.wamblee.persistence.Persistent#getPrimaryKey()
+ */
+ public Serializable getPrimaryKey() {
+ return _primaryKey;
+ }
+
+ /* (non-Javadoc)
+ * @see org.wamblee.persistence.Persistent#setPrimaryKey(java.io.Serializable)
+ */
+ public void setPrimaryKey(Serializable aKey) {
+ _primaryKey = aKey;
+ }
+
+ /* (non-Javadoc)
+ * @see org.wamblee.persistence.Persistent#getPersistedVersion()
+ */
+ public int getPersistedVersion() {
+ return _version;
+ }
+
+ /* (non-Javadoc)
+ * @see org.wamblee.persistence.Persistent#setPersistedVersion(int)
+ */
+ public void setPersistedVersion(int aVersion) {
+ _version = aVersion;
+ }
+}