com.syrtsov.ddao.factory.param
Class StatementParameterHelper

java.lang.Object
  com.syrtsov.ddao.factory.param.StatementParameterHelper

All Implemented Interfaces:

StatementParameter

Direct Known Subclasses:

StatementParameterImpl, ThreadLocalStatementParameter

public abstract class StatementParameterHelper
extends java.lang.Object
implements StatementParameter

Created-By: Pavel Syrtsov Date: Apr 10, 2008 Time: 4:30:20 PM

Field Summary

protected java.lang.String

name

Constructor Summary

StatementParameterHelper()

Method Summary

void	bind(java.sql.PreparedStatement preparedStatement, int idx, java.lang.Object[] args) bind parameter extracted from argument list to given prepared statement
abstract java.lang.Object	extractData(java.lang.Object[] args)
java.lang.String	extractParam(java.lang.Object[] args) this method will be invoked by statement factory to get string presentation of parameter that will be inlined in query text,
void	init(java.lang.reflect.Method method, java.lang.String name) psdo: add comments

Methods inherited from class java.lang.Object

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

Field Detail

name

protected java.lang.String name

Constructor Detail

StatementParameterHelper

public StatementParameterHelper()

Method Detail

init

public void init(java.lang.reflect.Method method,
                 java.lang.String name)

Description copied from interface: StatementParameter

psdo: add comments

Specified by:

init in interface StatementParameter

extractData

public abstract java.lang.Object extractData(java.lang.Object[] args)
                                      throws StatementParameterException

Throws:

StatementParameterException

extractParam

public java.lang.String extractParam(java.lang.Object[] args)
                              throws StatementParameterException

Description copied from interface: StatementParameter

this method will be invoked by statement factory to get string presentation of parameter that will be inlined in query text,

Specified by:

extractParam in interface StatementParameter

Parameters:

args - - method invocation argument list

Returns:

value extracted from argument list

Throws:

StatementParameterException - - thrown when failed to extract parameter

bind

public void bind(java.sql.PreparedStatement preparedStatement,
                 int idx,
                 java.lang.Object[] args)
          throws StatementParameterException

Description copied from interface: StatementParameter

bind parameter extracted from argument list to given prepared statement

Specified by:

bind in interface StatementParameter

Parameters:

preparedStatement - - prepared statement that has to be bound with parameter

idx - - index of parameter that should be bound, should be used as second argument for PreparedStatement.setXXX

args - - method invocation argument list

Throws:

StatementParameterException - - thrown when failed to bind parameter