com.atlassian.jira.util

Class DuckTypeProxyFactory

java.lang.Object

com.atlassian.jira.util.DuckTypeProxyFactory

public class DuckTypeProxyFactory
extends Object

Use this Factory to produce "Duck Type" proxies of a given interface with a delegate object that "implements" a subset of the interface methods.

Since:

v6.4

Constructor Summary

Constructors

Constructor and Description
DuckTypeProxyFactory()

Method Summary

Modifier and Type	Method and Description
static <T> T	newLooseProxyInstance(Class<T> proxyInterface, Object delegate) Creates a new Proxy instance for the given interface.
static <T> T	newStrictProxyInstance(Class<T> proxyInterface, Object delegate) Creates a new Proxy instance for the given interface.

Methods inherited from class java.lang.Object

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

Constructor Detail

DuckTypeProxyFactory

public DuckTypeProxyFactory()

Method Detail

newStrictProxyInstance

public static <T> T newStrictProxyInstance(Class<T> proxyInterface,
                                           Object delegate)

Creates a new Proxy instance for the given interface.

If any methods are called on the interface that are not defined in the delegate, then it will throw UnsupportedOperationException.

Type Parameters:

T - Type of the interface

Parameters:

proxyInterface - the interface to create a proxy for.

delegate - the object to delegate to for implementations (quacks like a duck)

Returns:

a new Proxy instance for the given interface.

newLooseProxyInstance

public static <T> T newLooseProxyInstance(Class<T> proxyInterface,
                                          Object delegate)

Creates a new Proxy instance for the given interface.

If any methods are called on the interface that are not defined in the delegate, then it will return null.

Type Parameters:

T - Type of the interface

Parameters:

proxyInterface - the interface to create a proxy for.

delegate - the object to delegate to for implementations (quacks like a duck)

Returns:

a new Proxy instance for the given interface.