org.apache.hadoop.hbase.hbql.impl
Class ElementPool<T extends PoolableElement>

java.lang.Object
  org.apache.hadoop.hbase.hbql.impl.ElementPool<T>

Direct Known Subclasses:

HConnectionPoolImpl, QueryExecutorPoolImpl

public abstract class ElementPool<T extends PoolableElement>
extends Object

Constructor Summary

ElementPool(String name, int maxPoolSize)

Method Summary

protected void	addElementToPool()
int	getCreatedCount()
protected BlockingQueue<T>	getElementPool()
int	getMaxPoolSize()
String	getName()
int	getTakenCount()
protected abstract T	newElement()
void	release(T element)
protected T	take()

Methods inherited from class java.lang.Object

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

Constructor Detail

ElementPool

public ElementPool(String name,
                   int maxPoolSize)

Method Detail

newElement

protected abstract T newElement()
                                                 throws HBqlException

Throws:

HBqlException

getMaxPoolSize

public int getMaxPoolSize()

getElementPool

protected BlockingQueue<T> getElementPool()

getName

public String getName()

getCreatedCount

public int getCreatedCount()

getTakenCount

public int getTakenCount()

addElementToPool

protected void addElementToPool()
                         throws HBqlException

Throws:

HBqlException

take

protected T take()
                                  throws HBqlException

Throws:

HBqlException

release

public void release(T element)