tests/javaobject/QueryFunction.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 javaobject;

import org.apache.geode.cache.Cache;
import org.apache.geode.cache.Declarable;
import org.apache.geode.cache.execute.Function;
import org.apache.geode.cache.execute.FunctionContext;
import org.apache.geode.cache.execute.FunctionException;
import org.apache.geode.cache.query.Query;
import org.apache.geode.cache.query.QueryService;
import org.apache.geode.cache.query.SelectResults;

import org.apache.geode.internal.cache.GemFireCacheImpl;

public class QueryFunction implements Function, Declarable {

  private static final String ID = "QueryFunction";

  @Override
  public boolean hasResult() {
    return true;
  }

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

  @Override
  public void execute(FunctionContext context) {
    Cache cache = context.getCache();
    QueryService queryService = cache.getQueryService();
    String qstr = (String) context.getArguments();
    try {
      Query query = queryService.newQuery(qstr);
      context.getResultSender().lastResult(((SelectResults) query.execute()).asList());
    } catch (Exception e) {
      throw new FunctionException(e);
    }
  }

  @Override
  public String getId() {
    return ID;
  }
}