org.apache.hadoop.hbase

Interface CoprocessorEnvironment<C extends Coprocessor>

All Known Subinterfaces:

MasterCoprocessorEnvironment, RegionCoprocessorEnvironment, RegionServerCoprocessorEnvironment, WALCoprocessorEnvironment

All Known Implementing Classes:

BaseEnvironment, MasterCoprocessorHost.MasterEnvironment, MasterCoprocessorHost.MasterEnvironmentForCoreCoprocessors, RegionCoprocessorHost.RegionEnvironment, RegionCoprocessorHost.RegionEnvironmentForCoreCoprocessors, RegionServerCoprocessorHost.RegionServerEnvironment, RegionServerCoprocessorHost.RegionServerEnvironmentForCoreCoprocessors, WALCoprocessorHost.WALEnvironment

@InterfaceAudience.LimitedPrivate(value="Coprocesssor")
 @InterfaceStability.Evolving
public interface CoprocessorEnvironment<C extends Coprocessor>

Coprocessor environment state.

Method Summary

Modifier and Type	Method and Description
ClassLoader	getClassLoader()
org.apache.hadoop.conf.Configuration	getConfiguration()
String	getHBaseVersion()
C	getInstance()
int	getLoadSequence()
int	getPriority()
int	getVersion()

Method Detail

getVersion

int getVersion()

Returns:

the Coprocessor interface version

getHBaseVersion

String getHBaseVersion()

Returns:

the HBase version as a string (e.g. "0.21.0")

getInstance

C getInstance()

Returns:

the loaded coprocessor instance

getPriority

int getPriority()

Returns:

the priority assigned to the loaded coprocessor

getLoadSequence

int getLoadSequence()

Returns:

the load sequence number

getConfiguration

org.apache.hadoop.conf.Configuration getConfiguration()

Returns:

a Read-only Configuration; throws UnsupportedOperationException if you try to set a configuration.

getClassLoader

ClassLoader getClassLoader()

Returns:

the classloader for the loaded coprocessor instance