org.postgresql.core

Class CachedQuery

java.lang.Object

org.postgresql.core.CachedQuery

All Implemented Interfaces:

CanEstimateSize

public class CachedQuery
extends Object
implements CanEstimateSize

Stores information on the parsed JDBC query. It is used to cut parsing overhead when executing the same query through Connection.prepareStatement(String).

Field Summary

Fields

Modifier and Type	Field and Description
boolean	isFunction
Object	key Cache key.
boolean	outParmBeforeFunc
Query	query

Constructor Summary

Constructors

Constructor and Description
CachedQuery(Object key, Query query, boolean isFunction, boolean outParmBeforeFunc)

Method Summary

Modifier and Type	Method and Description
int	getExecuteCount() Number of times this statement has been used
long	getSize()
void	increaseExecuteCount()
void	increaseExecuteCount(int inc)

Methods inherited from class java.lang.Object

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

Field Detail

key

public final Object key

Cache key. String or org.postgresql.jdbc.CallableQueryKey. It is assumed that String.valueOf(key)*2 would give reasonable estimate of the number of retained bytes by given key (see getSize()).

query

public final Query query

isFunction

public final boolean isFunction

outParmBeforeFunc

public final boolean outParmBeforeFunc

Constructor Detail

CachedQuery

public CachedQuery(Object key,
                   Query query,
                   boolean isFunction,
                   boolean outParmBeforeFunc)

Method Detail

increaseExecuteCount

public void increaseExecuteCount()

increaseExecuteCount

public void increaseExecuteCount(int inc)

getExecuteCount

public int getExecuteCount()

Number of times this statement has been used

Returns:

number of times this statement has been used

getSize

public long getSize()

Specified by:

getSize in interface CanEstimateSize