001/*
002 * Copyright (c) 2016-2017 Chris K Wensel <chris@wensel.net>. All Rights Reserved.
003 *
004 * Project and contact information: http://www.cascading.org/
005 *
006 * This file is part of the Cascading project.
007 *
008 * Licensed under the Apache License, Version 2.0 (the "License");
009 * you may not use this file except in compliance with the License.
010 * You may obtain a copy of the License at
011 *
012 *     http://www.apache.org/licenses/LICENSE-2.0
013 *
014 * Unless required by applicable law or agreed to in writing, software
015 * distributed under the License is distributed on an "AS IS" BASIS,
016 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
017 * See the License for the specific language governing permissions and
018 * limitations under the License.
019 */
020
021package cascading.nested.json;
022
023import java.beans.ConstructorProperties;
024
025import cascading.nested.core.BuildSpec;
026import cascading.nested.core.NestedBaseBuildFunction;
027import cascading.tuple.Fields;
028import com.fasterxml.jackson.databind.JsonNode;
029import com.fasterxml.jackson.databind.node.ArrayNode;
030
031/**
032 * Class JSONBuildIntoFunction provides for the ability to update existing JSON objects from streamed tuple values.
033 *
034 * @see NestedBaseBuildFunction for more details.
035 */
036public class JSONBuildIntoFunction extends NestedBaseBuildFunction<JsonNode, ArrayNode>
037  {
038  /**
039   * Creates a new JSONBuildIntoFunction instance.
040   *
041   * @param fieldDeclaration of Fields
042   * @param buildSpecs       of BuildSpec...
043   */
044  @ConstructorProperties({"fieldDeclaration", "buildSpecs"})
045  public JSONBuildIntoFunction( Fields fieldDeclaration, BuildSpec... buildSpecs )
046    {
047    super( JSONCoercibleType.TYPE, fieldDeclaration, buildSpecs );
048    }
049
050  @Override
051  protected boolean isInto()
052    {
053    return true;
054    }
055  }