org.apache.calcite.linq4j.AbstractEnumerable Maven / Gradle / Ivy
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* 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,
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* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.calcite.linq4j;
import java.util.Iterator;
/**
* Abstract implementation of the {@link Enumerable} interface that
* implements the extension methods.
*
* It is helpful to derive from this class if you are implementing
* {@code Enumerable}, because {@code Enumerable} has so many extension methods,
* but it is not required.
*
* @param Element type
*/
public abstract class AbstractEnumerable extends DefaultEnumerable {
@Override public Iterator iterator() {
return Linq4j.enumeratorIterator(enumerator());
}
}