org.apache.hadoop.hbase.CoprocessorEnvironment Maven / Gradle / Ivy
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* 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
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*/
package org.apache.hadoop.hbase;
import org.apache.hadoop.conf.Configuration;
import org.apache.yetus.audience.InterfaceAudience;
import org.apache.yetus.audience.InterfaceStability;
/**
* Coprocessor environment state.
*/
@InterfaceAudience.LimitedPrivate(HBaseInterfaceAudience.COPROC)
@InterfaceStability.Evolving
public interface CoprocessorEnvironment {
/** @return the Coprocessor interface version */
int getVersion();
/** @return the HBase version as a string (e.g. "0.21.0") */
String getHBaseVersion();
/** @return the loaded coprocessor instance */
C getInstance();
/** @return the priority assigned to the loaded coprocessor */
int getPriority();
/** @return the load sequence number */
int getLoadSequence();
/**
* @return a Read-only Configuration; throws {@link UnsupportedOperationException} if you try
* to set a configuration.
*/
Configuration getConfiguration();
/**
* @return the classloader for the loaded coprocessor instance
*/
ClassLoader getClassLoader();
}