InAllGraphs.java

/*
 * Copyright © 2014 - 2021 Leipzig University (Database Research Group)
 *
 * Licensed 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.
 */
package org.gradoop.flink.model.impl.functions.graphcontainment;

import org.apache.flink.api.java.functions.FunctionAnnotation;
import org.gradoop.common.model.api.entities.GraphElement;
import org.gradoop.common.model.impl.id.GradoopIdSet;
import org.gradoop.flink.model.impl.functions.filters.CombinableFilter;

/**
 * True, if an element is contained in all of a set of given graphs.
 *
 * @param <GE> element type
 */
@FunctionAnnotation.ReadFields("graphIds")
public class InAllGraphs<GE extends GraphElement> implements CombinableFilter<GE> {

  /**
   * graph ids
   */
  private final GradoopIdSet graphIds;

  /**
   * constructor
   *
   * @param graphIds graph ids
   */
  public InAllGraphs(GradoopIdSet graphIds) {
    this.graphIds = graphIds;
  }

  @Override
  public boolean filter(GE element) throws Exception {
    return element.getGraphIds().containsAll(this.graphIds);
  }
}