org.apache.hadoop.hbase.coprocessor

类 CoprocessorHost.Environment

java.lang.Object

org.apache.hadoop.hbase.coprocessor.CoprocessorHost.Environment

所有已实现的接口:

CoprocessorEnvironment

封闭类:

CoprocessorHost<E extends CoprocessorEnvironment>

public static class CoprocessorHost.Environment
extends Object
implements CoprocessorEnvironment

Encapsulation of the environment of each coprocessor

字段概要

字段

限定符和类型	字段和说明
Coprocessor	impl The coprocessor
protected List<HTableInterface>	openTables Accounting for tables opened by the coprocessor
protected int	priority Chaining priority

构造器概要

构造器

构造器和说明
CoprocessorHost.Environment(Coprocessor impl, int priority, int seq, org.apache.hadoop.conf.Configuration conf) Constructor

方法概要

方法

限定符和类型	方法和说明
ClassLoader	getClassLoader()
org.apache.hadoop.conf.Configuration	getConfiguration()
String	getHBaseVersion()
Coprocessor	getInstance()
int	getLoadSequence()
int	getPriority()
HTableInterface	getTable(TableName tableName) Open a table from within the Coprocessor environment
HTableInterface	getTable(TableName tableName, ExecutorService pool) Open a table from within the Coprocessor environment
int	getVersion()
protected void	shutdown() Clean up the environment
void	startup() Initialize the environment

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

字段详细资料

impl

public Coprocessor impl

The coprocessor

priority

protected int priority

Chaining priority

openTables

protected final List<HTableInterface> openTables

Accounting for tables opened by the coprocessor

构造器详细资料

CoprocessorHost.Environment

public CoprocessorHost.Environment(Coprocessor impl,
                           int priority,
                           int seq,
                           org.apache.hadoop.conf.Configuration conf)

Constructor

参数:

impl - the coprocessor instance

priority - chaining priority

方法详细资料

startup

public void startup()
             throws IOException

Initialize the environment

抛出:

IOException

shutdown

protected void shutdown()

Clean up the environment

getInstance

public Coprocessor getInstance()

指定者:

getInstance 在接口中 CoprocessorEnvironment

getClassLoader

public ClassLoader getClassLoader()

指定者:

getClassLoader 在接口中 CoprocessorEnvironment

getPriority

public int getPriority()

指定者:

getPriority 在接口中 CoprocessorEnvironment

getLoadSequence

public int getLoadSequence()

指定者:

getLoadSequence 在接口中 CoprocessorEnvironment

getVersion

public int getVersion()

指定者:

getVersion 在接口中 CoprocessorEnvironment

返回:

the coprocessor environment version

getHBaseVersion

public String getHBaseVersion()

指定者:

getHBaseVersion 在接口中 CoprocessorEnvironment

返回:

the HBase release

getConfiguration

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

指定者:

getConfiguration 在接口中 CoprocessorEnvironment

getTable

public HTableInterface getTable(TableName tableName)
                         throws IOException

Open a table from within the Coprocessor environment

指定者:

getTable 在接口中 CoprocessorEnvironment

参数:

tableName - the table name

返回:

an interface for manipulating the table

抛出:

IOException - Exception

getTable

public HTableInterface getTable(TableName tableName,
                       ExecutorService pool)
                         throws IOException

Open a table from within the Coprocessor environment

指定者:

getTable 在接口中 CoprocessorEnvironment

参数:

tableName - the table name

返回:

an interface for manipulating the table

抛出:

IOException - Exception