org.trimou.engine.resolver

Class Decorator.AbstractBuilder<T,B extends Decorator.AbstractBuilder<T,B>>

java.lang.Object

org.trimou.engine.resolver.Decorator.AbstractBuilder<T,B>

Type Parameters:

T -

B -

Direct Known Subclasses:

Decorator.Builder, DecoratorConverter.Builder, DecoratorHelper.Builder

Enclosing class:

Decorator<T>

public abstract static class Decorator.AbstractBuilder<T,B extends Decorator.AbstractBuilder<T,B>>
extends Object

Logic shared accross various decorator-related builders.

Field Summary

Fields

Modifier and Type	Field and Description
protected String	delegateKey
protected Map<String,Function<T,Object>>	mappings

Constructor Summary

Constructors

Constructor and Description
AbstractBuilder()

Method Summary

Modifier and Type	Method and Description
B	compute(String key, Function<T,Object> mapper) Associates the specified mapping function with the specified key.
B	computeOnce(String key, Function<T,Object> mapper) Associates the specified mapping function with the specified key.
B	delegateKey(String key) The specified key can be used to obtain the undelying delegate instance.
B	put(String key, Object value) Associates the specified value with the specified key.
protected abstract B	self()

Methods inherited from class java.lang.Object

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

Field Detail

delegateKey

protected String delegateKey

mappings

protected final Map<String,Function<T,Object>> mappings

Constructor Detail

AbstractBuilder

public AbstractBuilder()

Method Detail

put

public B put(String key,
             Object value)

Associates the specified value with the specified key.

Parameters:

key -

value -

Returns:

self

compute

public B compute(String key,
                 Function<T,Object> mapper)

Associates the specified mapping function with the specified key. The input to the function is the delegate instance. The function is applied each time a value for the given key is requested.

Parameters:

key -

mapper -

Returns:

self

computeOnce

public B computeOnce(String key,
                     Function<T,Object> mapper)

Associates the specified mapping function with the specified key. The input to the function is the delegate instance. The function is only applied once - when a value for the given key is requested the result is cached.

Parameters:

key -

mapper -

Returns:

self

delegateKey

public B delegateKey(String key)

The specified key can be used to obtain the undelying delegate instance.

Parameters:

key -

Returns:

self

See Also:

Decorator.KEY_GET_DELEGATE

self

protected abstract B self()