org.springframework.data.hadoop.config.common.annotation

Class AnnotationConfigurerAdapter<O,I,B extends AnnotationBuilder<O>>

java.lang.Object

org.springframework.data.hadoop.config.common.annotation.AnnotationConfigurerAdapter<O,I,B>

Type Parameters:

O - The Object being built by B

I -

B - The Builder that is building O and is configured by AnnotationConfigurerAdapter

All Implemented Interfaces:

AnnotationConfigurer<O,B>

Direct Known Subclasses:

DefaultClientMasterRunnerConfigurer, DefaultEnvironmentClasspathConfigurer, DefaultLocalResourcesCopyConfigurer, DefaultLocalResourcesHdfsConfigurer, DefaultMasterContainerAllocatorConfigurer, DefaultMasterContainerRunnerConfigurer, DefaultNamingStrategyConfigurer, DefaultPartitionStrategyConfigurer, DefaultPropertiesConfigurer, DefaultResourceConfigurer, DefaultRolloverStrategyConfigurer, DefaultSecurityConfigurer

public abstract class AnnotationConfigurerAdapter<O,I,B extends AnnotationBuilder<O>>
extends java.lang.Object
implements AnnotationConfigurer<O,B>

A base class for AnnotationConfigurer that allows subclasses to only implement the methods they are interested in. It also provides a mechanism for using the AnnotationConfigurer and when done gaining access to the AnnotationBuilder that is being configured.

Author:

Rob Winch, Janne Valkealahti

Constructor Summary

Constructors

Constructor and Description
AnnotationConfigurerAdapter()

Method Summary

Methods

Modifier and Type	Method and Description
void	addObjectPostProcessor(ObjectPostProcessor<?> objectPostProcessor) Adds an ObjectPostProcessor to be used for this AnnotationConfigurerAdapter.
I	and() Return the AnnotationBuilder when done using the AnnotationConfigurer.
void	configure(B builder) Configure the AnnotationBuilder by setting the necessary properties on the AnnotationBuilder.
protected B	getBuilder() Gets the AnnotationBuilder.
void	init(B builder) Initialise the AnnotationBuilder.
boolean	isAssignable(AnnotationBuilder<O> builder)
void	setBuilder(B builder) Sets the AnnotationBuilder to be used.

Methods inherited from class java.lang.Object

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

Constructor Detail

AnnotationConfigurerAdapter

public AnnotationConfigurerAdapter()

Method Detail

init

public void init(B builder)
          throws java.lang.Exception

Description copied from interface: AnnotationConfigurer

Initialise the AnnotationBuilder. Here only shared state should be created and modified, but not properties on the AnnotationBuilder used for building the object. This ensures that the AnnotationConfigurer.configure(AnnotationBuilder) method uses the correct shared objects when building.

Specified by:

init in interface AnnotationConfigurer<O,B extends AnnotationBuilder<O>>

Parameters:

builder - the builder

Throws:

java.lang.Exception - if error occurred

configure

public void configure(B builder)
               throws java.lang.Exception

Description copied from interface: AnnotationConfigurer

Configure the AnnotationBuilder by setting the necessary properties on the AnnotationBuilder.

Specified by:

configure in interface AnnotationConfigurer<O,B extends AnnotationBuilder<O>>

Parameters:

builder - the builder

Throws:

java.lang.Exception - if error occurred

and

public I and()

Return the AnnotationBuilder when done using the AnnotationConfigurer. This is useful for method chaining.

Returns:

the AnnotationBuilder

getBuilder

protected final B getBuilder()

Gets the AnnotationBuilder. Cannot be null. This method throws IllegalStateException if AnnotationBuilder is null.

Returns:

the AnnotationBuilder

addObjectPostProcessor

public void addObjectPostProcessor(ObjectPostProcessor<?> objectPostProcessor)

Adds an ObjectPostProcessor to be used for this AnnotationConfigurerAdapter. The default implementation does nothing to the object.

Parameters:

objectPostProcessor - the ObjectPostProcessor to use

setBuilder

public void setBuilder(B builder)

Sets the AnnotationBuilder to be used. This is automatically set when using AbstractConfiguredAnnotationBuilder.apply(AnnotationConfigurerAdapter)

Parameters:

builder - the AnnotationBuilder to set

isAssignable

public boolean isAssignable(AnnotationBuilder<O> builder)

Specified by:

isAssignable in interface AnnotationConfigurer<O,B extends AnnotationBuilder<O>>