/*
* Licensed to Crate under one or more contributor license agreements.
* See the NOTICE file distributed with this work for additional
* information regarding copyright ownership. Crate 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.
*
* However, if you have executed another commercial license agreement
* with Crate these terms will supersede the license and you may use the
* software solely pursuant to the terms of the relevant commercial
* agreement.
*/
package io.crate.data;
import javax.annotation.Nonnull;
import java.util.concurrent.CompletionStage;
/**
* Base class for BatchIterator implementations which mostly forward to another BatchIterator.
*/
public abstract class ForwardingBatchIterator implements BatchIterator {
protected ForwardingBatchIterator() {
}
protected abstract BatchIterator delegate();
@Override
public Columns rowData() {
return delegate().rowData();
}
@Override
public void moveToStart() {
delegate().moveToStart();
}
@Override
public boolean moveNext() {
return delegate().moveNext();
}
@Override
public void close() {
delegate().close();
}
@Override
public CompletionStage<?> loadNextBatch() {
return delegate().loadNextBatch();
}
@Override
public boolean allLoaded() {
return delegate().allLoaded();
}
@Override
public void kill(@Nonnull Throwable throwable) {
delegate().kill(throwable);
}
}