net.sourceforge.jtds.jdbc

Class ParameterMetaDataImpl

java.lang.Object

net.sourceforge.jtds.jdbc.ParameterMetaDataImpl

All Implemented Interfaces:

java.sql.ParameterMetaData, java.sql.Wrapper

public class ParameterMetaDataImpl
extends java.lang.Object
implements java.sql.ParameterMetaData

jTDS implementation of ParameterMetaData.

For Sybase it is usually possible to obtain true parameter data for prepared statements. For Microsoft just use information determined from the actual parameters if set or return some reasonable defaults otherwise.

Version:

$Id: ParameterMetaDataImpl.java,v 1.7.2.3 2009-12-30 08:45:34 ickzon Exp $

Author:

Brian Heineman, Mike Hutchinson

Field Summary

Fields

Modifier and Type	Field and Description
private int	maxPrecision
private ParamInfo[]	parameterList
private boolean	useLOBs

Fields inherited from interface java.sql.ParameterMetaData

parameterModeIn, parameterModeInOut, parameterModeOut, parameterModeUnknown, parameterNoNulls, parameterNullable, parameterNullableUnknown

Constructor Summary

Constructors

Constructor and Description
ParameterMetaDataImpl(ParamInfo[] parameterList, JtdsConnection connection)

Method Summary

Methods

Modifier and Type	Method and Description
private ParamInfo	getParameter(int param)
java.lang.String	getParameterClassName(int param)
int	getParameterCount()
int	getParameterMode(int param)
int	getParameterType(int param)
java.lang.String	getParameterTypeName(int param)
int	getPrecision(int param)
int	getScale(int param)
int	isNullable(int param)
boolean	isSigned(int param)
boolean	isWrapperFor(java.lang.Class arg0)
java.lang.Object	unwrap(java.lang.Class arg0)

Methods inherited from class java.lang.Object

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

Field Detail

parameterList

private final ParamInfo[] parameterList

maxPrecision

private final int maxPrecision

useLOBs

private final boolean useLOBs

Constructor Detail

ParameterMetaDataImpl

public ParameterMetaDataImpl(ParamInfo[] parameterList,
                     JtdsConnection connection)

Method Detail

getParameterCount

public int getParameterCount()
                      throws java.sql.SQLException

Specified by:

getParameterCount in interface java.sql.ParameterMetaData

Throws:

java.sql.SQLException

isNullable

public int isNullable(int param)
               throws java.sql.SQLException

Specified by:

isNullable in interface java.sql.ParameterMetaData

Throws:

java.sql.SQLException

getParameterType

public int getParameterType(int param)
                     throws java.sql.SQLException

Specified by:

getParameterType in interface java.sql.ParameterMetaData

Throws:

java.sql.SQLException

getScale

public int getScale(int param)
             throws java.sql.SQLException

Specified by:

getScale in interface java.sql.ParameterMetaData

Throws:

java.sql.SQLException

isSigned

public boolean isSigned(int param)
                 throws java.sql.SQLException

Specified by:

isSigned in interface java.sql.ParameterMetaData

Throws:

java.sql.SQLException

getPrecision

public int getPrecision(int param)
                 throws java.sql.SQLException

Specified by:

getPrecision in interface java.sql.ParameterMetaData

Throws:

java.sql.SQLException

getParameterTypeName

public java.lang.String getParameterTypeName(int param)
                                      throws java.sql.SQLException

Specified by:

getParameterTypeName in interface java.sql.ParameterMetaData

Throws:

java.sql.SQLException

getParameterClassName

public java.lang.String getParameterClassName(int param)
                                       throws java.sql.SQLException

Specified by:

getParameterClassName in interface java.sql.ParameterMetaData

Throws:

java.sql.SQLException

getParameterMode

public int getParameterMode(int param)
                     throws java.sql.SQLException

Specified by:

getParameterMode in interface java.sql.ParameterMetaData

Throws:

java.sql.SQLException

getParameter

private ParamInfo getParameter(int param)
                        throws java.sql.SQLException

Throws:

java.sql.SQLException

isWrapperFor

public boolean isWrapperFor(java.lang.Class arg0)
                     throws java.sql.SQLException

Specified by:

isWrapperFor in interface java.sql.Wrapper

Throws:

java.sql.SQLException

unwrap

public java.lang.Object unwrap(java.lang.Class arg0)
                        throws java.sql.SQLException

Specified by:

unwrap in interface java.sql.Wrapper

Throws:

java.sql.SQLException