org.apache.openjpa.persistence.GeneratorImpl Maven / Gradle / Ivy
/*
* 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.openjpa.persistence;
import org.apache.openjpa.kernel.DelegatingSeq;
import org.apache.openjpa.kernel.Seq;
import org.apache.openjpa.kernel.StoreContext;
import org.apache.openjpa.meta.ClassMetaData;
/**
* Represents a store sequence.
*
* @author Abe White
* @since 0.4.1
* @nojavadoc
*/
public class GeneratorImpl
implements Generator {
private final DelegatingSeq _seq;
private final String _name;
private final StoreContext _ctx;
private final ClassMetaData _meta;
/**
* Constructor; supply delegate.
*/
public GeneratorImpl(Seq seq, String name, StoreContext ctx,
ClassMetaData meta) {
_seq = new DelegatingSeq(seq, PersistenceExceptions.TRANSLATOR);
_name = name;
_ctx = ctx;
_meta = meta;
}
/**
* Delegate.
*/
public Seq getDelegate() {
return _seq.getDelegate();
}
public String getName() {
return _name;
}
public Object next() {
return _seq.next(_ctx, _meta);
}
public Object current() {
return _seq.current(_ctx, _meta);
}
public void allocate(int additional) {
_seq.allocate(additional, _ctx, _meta);
}
public int hashCode() {
return ((_seq == null) ? 0 : _seq.hashCode());
}
public boolean equals(Object other) {
if (other == this)
return true;
if ((other == null) || (other.getClass() != this.getClass()))
return false;
if (_seq == null)
return false;
return _seq.equals(((GeneratorImpl) other)._seq);
}
}