tajo-plan/src/main/java/org/apache/tajo/plan/expr/EvalContext.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.tajo.plan.expr;

import org.apache.tajo.plan.function.python.TajoScriptEngine;

import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import java.util.TimeZone;

public class EvalContext {
  private final Map<EvalNode, TajoScriptEngine> scriptEngineMap = new HashMap<>();
  private TimeZone timeZone;

  public void addScriptEngine(EvalNode evalNode, TajoScriptEngine scriptExecutor) {
    this.scriptEngineMap.put(evalNode, scriptExecutor);
  }

  public boolean hasScriptEngine(EvalNode evalNode) {
    boolean contain = this.scriptEngineMap.containsKey(evalNode);
    return contain;
  }

  public TajoScriptEngine getScriptEngine(EvalNode evalNode) {
    return this.scriptEngineMap.get(evalNode);
  }

  public Collection<TajoScriptEngine> getAllScriptEngines() {
    return this.scriptEngineMap.values();
  }

  public TimeZone getTimeZone() {
    return timeZone;
  }

  public void setTimeZone(TimeZone timeZone) {
    this.timeZone = timeZone;
  }

  public boolean hasTimeZone() {
    return timeZone != null;
  }
}