/*
* 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.operation.reference.sys.node;
import io.crate.metadata.RowContextCollectorExpression;
import java.util.List;
abstract class ArrayTypeRowContextCollectorExpression<RowType, IterType, ReturnType>
extends RowContextCollectorExpression<RowType, ReturnType[]> {
protected abstract List<IterType> items();
protected abstract ReturnType valueForItem(IterType input);
@Override
public ReturnType[] value() {
List<IterType> items = items();
ReturnType[] returnItems = (ReturnType[]) new Object[items.size()];
for (int idx = 0; idx < items().size(); idx++) {
returnItems[idx] = valueForItem(items.get(idx));
}
return returnItems;
}
}