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org.apache.derby.impl.jdbc
Class EmbedParameterSetMetaData  

java.lang.Object
  org.apache.derby.impl.jdbc.EmbedParameterSetMetaData

Direct Known Subclasses:

EmbedParameterMetaData30

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public class EmbedParameterSetMetaData

extends java.lang.Object

This class immitates to implement the ParameterMetaData interface from JDBC3.0 We want to provide the functionality to JDKs before JDBC3.0. We put it here instead of in Local20 because we want to make it available for CallableStatement. It provides the parameter meta data for callable & prepared statements. The subclass in Local30 actually implements ParameterMetaData interface. Our middle-tier servers or tools (eg. drda network server) can use it this way: import org.apache.derby.impl.jdbc.EmbedPreparedStatement; import org.apache.derby.impl.jdbc.EmbedParameterSetMetaData; EmbedParameterSetMetaData pmeta = ((EmbedPreparedStatement) ps).getEmbedParameterSetMetaData();

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Field Summary
private  int	paramCount
private  org.apache.derby.iapi.sql.ParameterValueSet	pvs
private  org.apache.derby.iapi.types.DataTypeDescriptor[]	types

 

Constructor Summary
protected	EmbedParameterSetMetaData(org.apache.derby.iapi.sql.ParameterValueSet pvs, org.apache.derby.iapi.types.DataTypeDescriptor[] types)

 

Method Summary
private  void	checkPosition(int parameterIndex)
java.lang.String	getParameterClassName(int param)           Retrieves the fully-qualified name of the Java class whose instances should be passed to the method PreparedStatement.setObject.
int	getParameterCount()           Retrieves the number of parameters in the PreparedStatement object for which this ParameterMetaData object contains information.
int	getParameterMode(int param)           Retrieves the designated parameter's mode.
int	getParameterType(int param)           Retrieves the designated parameter's SQL type.
java.lang.String	getParameterTypeName(int param)           Retrieves the designated parameter's database-specific type name.
int	getPrecision(int param)           Retrieves the designated parameter's number of decimal digits.
int	getScale(int param)           Retrieves the designated parameter's number of digits to right of the decimal point.
int	isNullable(int param)           Retrieves whether null values are allowed in the designated parameter.
boolean	isSigned(int param)           Retrieves whether values for the designated parameter can be signed numbers.

 

Methods inherited from class java.lang.Object

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

 

Field Detail

pvs

private final org.apache.derby.iapi.sql.ParameterValueSet pvs

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types

private final org.apache.derby.iapi.types.DataTypeDescriptor[] types

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paramCount

private final int paramCount

Constructor Detail

EmbedParameterSetMetaData

protected EmbedParameterSetMetaData(org.apache.derby.iapi.sql.ParameterValueSet pvs,
                                    org.apache.derby.iapi.types.DataTypeDescriptor[] types)

Method Detail

getParameterCount

public int getParameterCount()

Retrieves the number of parameters in the PreparedStatement object for which this ParameterMetaData object contains information.

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isNullable

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

Retrieves whether null values are allowed in the designated parameter.

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isSigned

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

Retrieves whether values for the designated parameter can be signed numbers.

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getPrecision

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

Retrieves the designated parameter's number of decimal digits.

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getScale

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

Retrieves the designated parameter's number of digits to right of the decimal point.

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getParameterType

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

Retrieves the designated parameter's SQL type.

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getParameterTypeName

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

Retrieves the designated parameter's database-specific type name.

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getParameterClassName

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

Retrieves the fully-qualified name of the Java class whose instances should be passed to the method PreparedStatement.setObject.

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getParameterMode

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

Retrieves the designated parameter's mode.

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checkPosition

private void checkPosition(int parameterIndex)
                    throws java.sql.SQLException

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Overview  Package   Class  Use  Deprecated  Index
Home >> All >> org >> apache >> derby >> impl >> [ jdbc overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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