net.sourceforge.jtds.jdbc
Class ParameterMetaDataImpl

java.lang.Object
  net.sourceforge.jtds.jdbc.ParameterMetaDataImpl

All Implemented Interfaces:

java.sql.ParameterMetaData

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

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

ParameterMetaDataImpl(ParamInfo[] parameterList, ConnectionJDBC2 connection)

Method Summary

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)

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,
                             ConnectionJDBC2 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