Package org.apache.empire.db

Class DBCmdParamList

java.lang.Object

org.apache.empire.db.DBCmdParamList

All Implemented Interfaces:

Iterable<DBCmdParam>, DBCmdParams

public class DBCmdParamList
extends Object
implements DBCmdParams

DBCmdParamList This class handles command parameters for Prepared Statements

Field Summary

Fields

Modifier and Type	Field	Description
protected ArrayList<DBCmdParam>	cmdParams
protected static final org.slf4j.Logger	log

Constructor Summary

Constructors

Constructor	Description
DBCmdParamList()
DBCmdParamList(int size)
DBCmdParamList(DBCmdParams initial)

Method Summary

Modifier and Type	Method	Description
void	add(DBCmdParam param)
void	add(DBCommand cmd, DataType type, Object value)
void	clear(int capacity)
void	completeParamUsage(DBCommand cmd)	internally used to remove unused Command Params from list Note: Only one thread my generate an SQL statement
Object[]	getParamValues()
boolean	isEmpty()
Iterator<DBCmdParam>	iterator()
void	mergeSubqueryParams(DBCmdParams subQueryParams)	Used to merge CmdParams from a subquery with the current command params list
protected void	notifyParamUsage(DBCmdParam param)	internally used to reorder the command params to match their order of occurance
void	remove(DBCmdParam param)
void	resetParamUsage(DBCommand cmd)	internally used to reset the command param usage count.
int	size()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Details

log

protected static final org.slf4j.Logger log

cmdParams

protected ArrayList<DBCmdParam> cmdParams

Constructor Details

DBCmdParamList

public DBCmdParamList()

DBCmdParamList

public DBCmdParamList(DBCmdParams initial)

DBCmdParamList

public DBCmdParamList(int size)

Method Details

isEmpty

public boolean isEmpty()

Specified by:

isEmpty in interface DBCmdParams

size

public int size()

Specified by:

size in interface DBCmdParams

iterator

public Iterator<DBCmdParam> iterator()

Specified by:

iterator in interface Iterable<DBCmdParam>

clear

public void clear(int capacity)

add

public void add(DBCmdParam param)

add

public void add(DBCommand cmd,
 DataType type,
 Object value)

remove

public void remove(DBCmdParam param)

getParamValues

public Object[] getParamValues()

resetParamUsage

public void resetParamUsage(DBCommand cmd)

internally used to reset the command param usage count. Note: Only one thread my generate an SQL statement

Parameters:

cmd - the command object

completeParamUsage

public void completeParamUsage(DBCommand cmd)

internally used to remove unused Command Params from list Note: Only one thread my generate an SQL statement

Parameters:

cmd - the command object

mergeSubqueryParams

public void mergeSubqueryParams(DBCmdParams subQueryParams)

Used to merge CmdParams from a subquery with the current command params list

Parameters:

subQueryParams - the subquery params

notifyParamUsage

protected void notifyParamUsage(DBCmdParam param)

internally used to reorder the command params to match their order of occurance

Parameters:

param - the param being used