org.apache.derby.impl.jdbc
Class EmbedParameterMetaData40

java.lang.Object
  org.apache.derby.impl.jdbc.EmbedParameterSetMetaData
      org.apache.derby.impl.jdbc.EmbedParameterMetaData30
          org.apache.derby.impl.jdbc.EmbedParameterMetaData40

All Implemented Interfaces:

java.sql.ParameterMetaData, java.sql.Wrapper, EngineParameterMetaData

public class EmbedParameterMetaData40
extends EmbedParameterMetaData30

Field Summary

Fields inherited from interface java.sql.ParameterMetaData

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

Constructor Summary

protected

EmbedParameterMetaData40(ParameterValueSet pvs, DataTypeDescriptor[] types) Calls the superclass constructors with the parameters passed

Method Summary

boolean	isWrapperFor(java.lang.Class<?> interfaces) Returns false unless interfaces is implemented
<T> T	unwrap(java.lang.Class<T> interfaces) Returns this if this class implements the interface

Methods inherited from class org.apache.derby.impl.jdbc.EmbedParameterSetMetaData

getParameterClassName, getParameterCount, getParameterMode, getParameterType, getParameterTypeName, getPrecision, getScale, isNullable, isSigned

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.sql.ParameterMetaData

getParameterClassName, getParameterCount, getParameterMode, getParameterType, getParameterTypeName, getPrecision, getScale, isNullable, isSigned

Constructor Detail

EmbedParameterMetaData40

protected EmbedParameterMetaData40(ParameterValueSet pvs,
                                   DataTypeDescriptor[] types)

Calls the superclass constructors with the parameters passed

Parameters:

pvs - ParameterValueSet pvs

types - DataTypeDescriptor

Method Detail

isWrapperFor

public boolean isWrapperFor(java.lang.Class<?> interfaces)
                     throws java.sql.SQLException

Returns false unless interfaces is implemented

Parameters:

interfaces - a Class defining an interface.

Returns:

true if this implements the interface or directly or indirectly wraps an object that does.

Throws:

java.sql.SQLException - if an error occurs while determining whether this is a wrapper for an object with the given interface.

unwrap

public <T> T unwrap(java.lang.Class<T> interfaces)
         throws java.sql.SQLException

Returns this if this class implements the interface

Parameters:

interfaces - a Class defining an interface

Returns:

an object that implements the interface

Throws:

java.sql.SQLExption - if no object if found that implements the interface

java.sql.SQLException