org.apache.derbyTesting.junit

Class BigDecimalHandler

java.lang.Object

org.apache.derbyTesting.junit.BigDecimalHandler

public class BigDecimalHandler
extends java.lang.Object

BigDecimalHandler provides wrappers for JDBC API methods which use BigDecimal. When writing tests which use BigDecimal, the methods in this class can be called instead of directly calling JDBC methods. This way the same test can be used in JVMs like J2ME/CDC/Foundation Profile 1.0, which do not have BigDecimal class, or JSR169 Profile, which does not support method calls using BigDecimal (such as ResultSet.getBigDecimal(..).

Field Summary

Fields

Modifier and Type	Field and Description
private static int[]	bdConvertibleTypes
static int	BIGDECIMAL_REPRESENTATION
static int	representation
static int	STRING_REPRESENTATION

Constructor Summary

Constructors

Constructor and Description
BigDecimalHandler()

Method Summary

Modifier and Type	Method and Description
protected static boolean	canConvertToDecimal(int type) This method checks that the SQL type can be converted to Decimal
static java.lang.String	getBigDecimalString(java.sql.CallableStatement cs, int parameterIndex, int parameterType) This method is a wrapper for the CallableStatement method getBigDecimal(int parameterIndex).
static java.lang.String	getBigDecimalString(java.sql.ResultSet rs, int columnIndex) This method is a wrapper for the ResultSet method getBigDecimal(int columnIndex).
static java.lang.String	getBigDecimalString(java.sql.ResultSet rs, java.lang.String columnName, int columnIndex) This method is a wrapper for ResultSet method getBigDecimal(String columnName).
static java.lang.String	getObjectString(java.sql.ResultSet rs, int columnIndex) This method is a wrapper for ResultSet method getObject(int columnIndex)
static java.lang.String	getObjectString(java.sql.ResultSet rs, java.lang.String columnName, int columnIndex) This method is a wrapper for ResultSet method getObject(String columnName)
static void	setBigDecimalString(java.sql.PreparedStatement ps, int parameterIndex, java.lang.String bdString) This method is a wrapper for the PreparedStatement method setBigDecimal(int parameterIndex,BigDecimal x)
static void	setObjectString(java.sql.PreparedStatement ps, int parameterIndex, java.lang.String objectString) This method is a wrapper for the PreparedStatement method setObject(int parameterIndex, Object x)
static void	updateBigDecimalString(java.sql.ResultSet rs, int columnIndex, java.lang.String bdString) This method is a wrapper for ResultSet method updateBigDecimal(int columnIndex, BigDecimal x)
static void	updateBigDecimalString(java.sql.ResultSet rs, java.lang.String columnName, java.lang.String bdString) This method is a wrapper for ResultSet method updateBigDecimal(String columnName, BigDecimal x)

Methods inherited from class java.lang.Object

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

Field Detail

representation

public static int representation

STRING_REPRESENTATION

public static final int STRING_REPRESENTATION

See Also:

Constant Field Values

BIGDECIMAL_REPRESENTATION

public static final int BIGDECIMAL_REPRESENTATION

See Also:

Constant Field Values

bdConvertibleTypes

private static final int[] bdConvertibleTypes

Constructor Detail

BigDecimalHandler

public BigDecimalHandler()

Method Detail

getBigDecimalString

public static java.lang.String getBigDecimalString(java.sql.ResultSet rs,
                                                   int columnIndex)
                                            throws java.sql.SQLException

This method is a wrapper for the ResultSet method getBigDecimal(int columnIndex).

Parameters:

rs - ResultSet

columnIndex - Column Index

Returns:

String value of getXXX(columnIndex)method on the ResultSet

Throws:

java.sql.SQLException

getBigDecimalString

public static java.lang.String getBigDecimalString(java.sql.ResultSet rs,
                                                   java.lang.String columnName,
                                                   int columnIndex)
                                            throws java.sql.SQLException

This method is a wrapper for ResultSet method getBigDecimal(String columnName).

Parameters:

rs - ResultSet

columnName - Column Name

columnIndex - Coulumn Index

Returns:

String value of getXXX(columnName)method on the ResultSet

Throws:

java.sql.SQLException

getObjectString

public static java.lang.String getObjectString(java.sql.ResultSet rs,
                                               int columnIndex)
                                        throws java.sql.SQLException

This method is a wrapper for ResultSet method getObject(int columnIndex)

Parameters:

rs - ResultSet

columnIndex - ColumnIndex

Returns:

String value of getXXX(columnIndex) method on the ResultSet

Throws:

java.sql.SQLException

getObjectString

public static java.lang.String getObjectString(java.sql.ResultSet rs,
                                               java.lang.String columnName,
                                               int columnIndex)
                                        throws java.sql.SQLException

This method is a wrapper for ResultSet method getObject(String columnName)

Parameters:

rs - ResultSet

columnName - Column Name

columnIndex - Column Index

Returns:

String value of getXXX(columnName) method on the ResultSet

Throws:

java.sql.SQLException

updateBigDecimalString

public static void updateBigDecimalString(java.sql.ResultSet rs,
                                          int columnIndex,
                                          java.lang.String bdString)
                                   throws java.sql.SQLException

This method is a wrapper for ResultSet method updateBigDecimal(int columnIndex, BigDecimal x)

Parameters:

rs - ResultSet

columnIndex - Column Index

bdString - String to be used in updateXXX method

Throws:

java.sql.SQLException

updateBigDecimalString

public static void updateBigDecimalString(java.sql.ResultSet rs,
                                          java.lang.String columnName,
                                          java.lang.String bdString)
                                   throws java.sql.SQLException

This method is a wrapper for ResultSet method updateBigDecimal(String columnName, BigDecimal x)

Parameters:

rs - ResultSet

columnName - Column Name

bdString - String to be used in updateXXX method

Throws:

java.sql.SQLException

getBigDecimalString

public static java.lang.String getBigDecimalString(java.sql.CallableStatement cs,
                                                   int parameterIndex,
                                                   int parameterType)
                                            throws java.sql.SQLException

This method is a wrapper for the CallableStatement method getBigDecimal(int parameterIndex). The wrapper method needs the parameterType as an input since ParameterMetaData is not available in JSR169.

Parameters:

cs - CallableStatement

parameterIndex - Parameter Index

parameterType - Parameter Type

Returns:

String value of getXXX(parameterIndex)method on the CallableStatement

Throws:

java.sql.SQLException

setBigDecimalString

public static void setBigDecimalString(java.sql.PreparedStatement ps,
                                       int parameterIndex,
                                       java.lang.String bdString)
                                throws java.sql.SQLException

This method is a wrapper for the PreparedStatement method setBigDecimal(int parameterIndex,BigDecimal x)

Parameters:

ps - PreparedStatement

parameterIndex - Parameter Index

bdString - String to be used in setXXX method

Throws:

java.sql.SQLException

setObjectString

public static void setObjectString(java.sql.PreparedStatement ps,
                                   int parameterIndex,
                                   java.lang.String objectString)
                            throws java.sql.SQLException

This method is a wrapper for the PreparedStatement method setObject(int parameterIndex, Object x)

Parameters:

ps - PreparedStatement

parameterIndex - Parameter Index

objectString - String to be used in setObject method

Throws:

java.sql.SQLException

canConvertToDecimal

protected static boolean canConvertToDecimal(int type)
                                      throws java.sql.SQLException

This method checks that the SQL type can be converted to Decimal

Parameters:

type - the SQL type to check

Returns:

true if the SQL type is convertible to DECIMAL, false otherwise.

Throws:

java.sql.SQLException