plugins/tech/neo4j/src/main/java/org/apache/hop/neo4j/transforms/cypherbuilder/operation/MatchOperation.java

/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF 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.
 *
 */

package org.apache.hop.neo4j.transforms.cypherbuilder.operation;

import org.apache.hop.core.exception.HopException;
import org.apache.hop.neo4j.transforms.cypherbuilder.Parameter;

import java.util.List;

public class MatchOperation extends BaseOperation {
  public MatchOperation() {
    super(OperationType.MATCH);
  }

  public MatchOperation(MatchOperation o) {
    super(o);
  }

  @Override
  public MatchOperation clone() {
    return new MatchOperation(this);
  }

  @Override
  public String getCypherClause(String unwindAlias, List<Parameter> parameters) throws HopException {
    // MATCH
    StringBuilder cypher = new StringBuilder(operationType.keyWord());
    // (m:Movie
    cypher.append("(").append(getLabelsClause());
    // { id : {pId} }
    cypher.append(getKeysClause(unwindAlias));
    cypher.append(") ");
    return cypher.toString();
  }

  @Override
  public boolean needsWriteTransaction() {
    return false;
  }
}