groovy.sql

Class GroovyResultSetProxy

java.lang.Object

groovy.sql.GroovyResultSetProxy

All Implemented Interfaces:

InvocationHandler

public final class GroovyResultSetProxy
extends Object
implements InvocationHandler

GroovyResultSetProxy is used to create a proxy for GroovyResultSet. Due to the version incompatibility between java 6 and older versions methods with additional logic were moved into an extension class. When getting properties or calling methods, the runtime will try to first execute these on the extension and then on the ResultSet itself. This way it is possible to replace and add methods. To overload methods from ResultSet all methods have to be implemented on the extension class.

Author:

Jochen Theodorou

Constructor Summary

Constructors

Constructor and Description
GroovyResultSetProxy(GroovyResultSetExtension ext) Creates a new proxy instance with a custom extension.
GroovyResultSetProxy(ResultSet set) Creates a new proxy instance.

Method Summary

Modifier and Type	Method and Description
GroovyResultSet	getImpl() Gets a proxy instance that can be used as GroovyResultSet.
Object	invoke(Object proxy, Method method, Object[] args) Invokes a method for the GroovyResultSet.

Methods inherited from class java.lang.Object

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

Constructor Detail

GroovyResultSetProxy

public GroovyResultSetProxy(ResultSet set)

Creates a new proxy instance. This will create the extension automatically using GroovyResultSetExtension

Parameters:

set - the result set to delegate to

See Also:

GroovyResultSetExtension

GroovyResultSetProxy

public GroovyResultSetProxy(GroovyResultSetExtension ext)

Creates a new proxy instance with a custom extension.

Parameters:

ext - the extension

See Also:

GroovyResultSetExtension

Method Detail

invoke

public Object invoke(Object proxy,
                     Method method,
                     Object[] args)
              throws Throwable

Invokes a method for the GroovyResultSet. This will try to invoke the given method first on the extension and then on the result set given as proxy parameter.

Specified by:

invoke in interface InvocationHandler

Parameters:

proxy - the result set

method - the method name of this method will be used to make a call on the extension. If this fails the call will be done on the proxy instead

args - for the call

Throws:

Throwable

See Also:

ResultSet, InvocationHandler.invoke(java.lang.Object, java.lang.reflect.Method, java.lang.Object[])

getImpl

public GroovyResultSet getImpl()

Gets a proxy instance that can be used as GroovyResultSet.

Returns:

the proxy