com.thoughtworks.xstream.core.util

Class DependencyInjectionFactory

java.lang.Object

com.thoughtworks.xstream.core.util.DependencyInjectionFactory

public class DependencyInjectionFactory
extends Object

A dependency injection factory.

Since:

1.2.2

Author:

Jörg Schaible

Constructor Summary

Constructors

Constructor and Description
DependencyInjectionFactory()

Method Summary

Modifier and Type	Method and Description
static Object	newInstance(Class type, Object[] dependencies) Create an instance with dependency injection.
static Object	newInstance(Class type, Object[] dependencies, BitSet usedDependencies) Create an instance with dependency injection.

Methods inherited from class java.lang.Object

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

Constructor Detail

DependencyInjectionFactory

public DependencyInjectionFactory()

Method Detail

newInstance

public static Object newInstance(Class type,
                                 Object[] dependencies)

Create an instance with dependency injection. The given dependencies are used to match the parameters of the constructors of the type. Constructors with most parameters are examined first. A parameter type sequence matching the sequence of the dependencies' types match first. Otherwise all the types of the dependencies must match one of the the parameters although no dependency is used twice. Use a TypedNull instance to inject null as parameter.

Parameters:

type - the type to create an instance of

dependencies - the possible dependencies

Returns:

the instantiated object

Throws:

ObjectAccessException - if no instance can be generated

IllegalArgumentException - if more than 63 dependencies have been provided

Since:

1.2.2

newInstance

public static Object newInstance(Class type,
                                 Object[] dependencies,
                                 BitSet usedDependencies)

Create an instance with dependency injection. The given dependencies are used to match the parameters of the constructors of the type. Constructors with most parameters are examined first. A parameter type sequence matching the sequence of the dependencies' types match first. Otherwise all the types of the dependencies must match one of the the parameters although no dependency is used twice. Use a TypedNull instance to inject null as parameter.

Parameters:

type - the type to create an instance of

dependencies - the possible dependencies

usedDependencies - bit mask set by the method for all used dependencies (may be null)

Returns:

the instantiated object

Throws:

ObjectAccessException - if no instance can be generated

IllegalArgumentException - if more than 63 dependencies have been provided

Since:

1.4