org.broadleafcommerce.common.extensibility.context.merge
Class AbstractMergeBeanPostProcessor

java.lang.Object
  org.broadleafcommerce.common.extensibility.context.merge.AbstractMergeBeanPostProcessor

All Implemented Interfaces:

org.springframework.beans.factory.Aware, org.springframework.beans.factory.config.BeanPostProcessor, org.springframework.context.ApplicationContextAware

Direct Known Subclasses:

EarlyStageMergeBeanPostProcessor, LateStageMergeBeanPostProcessor

public abstract class AbstractMergeBeanPostProcessor
extends Object
implements org.springframework.beans.factory.config.BeanPostProcessor, org.springframework.context.ApplicationContextAware

Contains useful processing code for merge bean post processors. The BeanPostProcessor instances can be used to merge additional collection members into collections declared elsewhere. In effect, this allows an implementer to only declare the collection members they're currently interested in cause those members to be merged into a larger, pre-existing list. This is more desirable than a traditional, comprehensive override that would require re-declaring the original bean and all of its members in addition to the current members being considered.

This code demonstrates using one of the concrete implementations, LateStageMergeBeanPostProcessor. The basic usage pattern is to specify the id of the collection you want to merge (collectionRef) and the id of the pre-existing, target collection (targetRef) that should receive the merge collection. The collection can be represented using ListFactoryBean, SetFactoryBean or MapFactoryBean.

 <bean class="org.broadleafcommerce.common.extensibility.context.merge.LateStageMergeBeanPostProcessor">
  <property name="collectionRef" value="blPriceListRuleBuilderFieldServices"/>
  <property name="targetRef" value="blRuleBuilderFieldServices"/>
 </bean>

 <bean id="blPriceListRuleBuilderFieldServices" class="org.springframework.beans.factory.config.ListFactoryBean">
  <property name="sourceList">
      <list>
          <ref bean="blPricingContextFieldService"/>
      </list>
  </property>
 </bean>
 
 

Author:

Jeff Fischer

See Also:

LateStageMergeBeanPostProcessor, EarlyStageMergeBeanPostProcessor

Field Summary

protected org.springframework.context.ApplicationContext	applicationContext
protected String	collectionRef
protected static org.apache.commons.logging.Log	LOG
protected Placement	placement
protected int	position
protected MergeBeanStatusProvider	statusProvider
protected String	targetRef

Constructor Summary

AbstractMergeBeanPostProcessor()

Method Summary

String	getCollectionRef() Retrieve the id of the collection to be merged
Placement	getPlacement() The position in the target collection to place the merge.
int	getPosition() If a placement of type Placement.SPECIFIC is used, then this is the integer position in the target target collection at which the merge will be performed.
MergeBeanStatusProvider	getStatusProvider() Gets the status provider that is configured for this post processor
String	getTargetRef() Retrieve the id of the collection to receive the merge
Object	postProcessAfterInitialization(Object bean, String beanName)
Object	postProcessBeforeInitialization(Object bean, String beanName)
void	setApplicationContext(org.springframework.context.ApplicationContext applicationContext)
void	setCollectionRef(String collectionRef) Set the id of the collection to be merged
void	setPlacement(Placement placement) The position in the target collection to place the merge.
void	setPosition(int position) If a placement of type Placement.SPECIFIC is used, then this is the integer position in the target target collection at which the merge will be performed.
void	setStatusProvider(MergeBeanStatusProvider statusProvider) Sets the MergeBeanStatusProvider, which controls whether or not this post processor is activated.
void	setTargetRef(String targetRef) Set the id of the collection to receive the merge

Methods inherited from class java.lang.Object

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

Field Detail

LOG

protected static final org.apache.commons.logging.Log LOG

collectionRef

protected String collectionRef

targetRef

protected String targetRef

placement

protected Placement placement

position

protected int position

applicationContext

protected org.springframework.context.ApplicationContext applicationContext

statusProvider

protected MergeBeanStatusProvider statusProvider

Constructor Detail

AbstractMergeBeanPostProcessor

public AbstractMergeBeanPostProcessor()

Method Detail

setApplicationContext

public void setApplicationContext(org.springframework.context.ApplicationContext applicationContext)
                           throws org.springframework.beans.BeansException

Specified by:

setApplicationContext in interface org.springframework.context.ApplicationContextAware

Throws:

org.springframework.beans.BeansException

postProcessAfterInitialization

public Object postProcessAfterInitialization(Object bean,
                                             String beanName)
                                      throws org.springframework.beans.BeansException

Specified by:

postProcessAfterInitialization in interface org.springframework.beans.factory.config.BeanPostProcessor

Throws:

org.springframework.beans.BeansException

postProcessBeforeInitialization

public Object postProcessBeforeInitialization(Object bean,
                                              String beanName)
                                       throws org.springframework.beans.BeansException

Specified by:

postProcessBeforeInitialization in interface org.springframework.beans.factory.config.BeanPostProcessor

Throws:

org.springframework.beans.BeansException

getCollectionRef

public String getCollectionRef()

Retrieve the id of the collection to be merged

Returns:

the id of the collection to be merged

setCollectionRef

public void setCollectionRef(String collectionRef)

Set the id of the collection to be merged

Parameters:

collectionRef - the id of the collection to be merged

getTargetRef

public String getTargetRef()

Retrieve the id of the collection to receive the merge

Returns:

the id of the collection receiving the merge

setTargetRef

public void setTargetRef(String targetRef)

Set the id of the collection to receive the merge

Parameters:

targetRef - the id of the collection receiving the merge

getPlacement

public Placement getPlacement()

The position in the target collection to place the merge. This can be at the beginning, end or at an explicit position.

Returns:

the position in the target collection to place the merge

setPlacement

public void setPlacement(Placement placement)

The position in the target collection to place the merge. This can be at the beginning, end or at an explicit position.

Parameters:

placement - the position in the target collection to place the merge

getPosition

public int getPosition()

If a placement of type Placement.SPECIFIC is used, then this is the integer position in the target target collection at which the merge will be performed.

Returns:

the specific position in the target collection

setPosition

public void setPosition(int position)

If a placement of type Placement.SPECIFIC is used, then this is the integer position in the target target collection at which the merge will be performed.

Parameters:

position - the specific position in the target collection

getStatusProvider

public MergeBeanStatusProvider getStatusProvider()

Gets the status provider that is configured for this post processor

Returns:

the MergeStatusBeanProvider

setStatusProvider

public void setStatusProvider(MergeBeanStatusProvider statusProvider)

Sets the MergeBeanStatusProvider, which controls whether or not this post processor is activated. If no statusProvider is set, then we will always execute.

Parameters:

statusProvider -