/*
* 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.planner.projection;
import com.google.common.collect.Collections2;
import io.crate.metadata.RowGranularity;
import java.util.Collection;
public class Projections {
public static Collection<? extends Projection> shardProjections(Collection<? extends Projection> projections) {
return Collections2.filter(projections, Projection.IS_SHARD_PROJECTION);
}
public static Collection<? extends Projection> nodeProjections(Collection<? extends Projection> projections) {
return Collections2.filter(projections, Projection.IS_NODE_PROJECTION);
}
public static boolean hasAnyShardProjections(Iterable<? extends Projection> projections) {
for (Projection projection : projections) {
if (projection.requiredGranularity() == RowGranularity.SHARD) {
return true;
}
}
return false;
}
}