/*
* Licensed to CRATE Technology GmbH ("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.partitioned;
import io.crate.metadata.PartitionName;
import io.crate.metadata.Reference;
import io.crate.metadata.RowContextCollectorExpression;
public class PartitionExpression extends RowContextCollectorExpression<PartitionName, Object> {
private final Reference ref;
private final int valuesIndex;
public PartitionExpression(Reference ref, int valuesIndex) {
this.ref = ref;
this.valuesIndex = valuesIndex;
}
@Override
public Object value() {
assert row != null : "row shouldn't be null for PartitionExpression";
return ref.valueType().value(row.values().get(valuesIndex));
}
public Reference reference() {
return ref;
}
}