org.apache.shindig.config

Class ExpressionContainerConfig

java.lang.Object

org.apache.shindig.config.BasicContainerConfig

org.apache.shindig.config.ExpressionContainerConfig

All Implemented Interfaces:

ContainerConfig

Direct Known Subclasses:

JsonContainerConfig

public class ExpressionContainerConfig
extends BasicContainerConfig

Represents a container configuration that uses expressions in values. We use a cascading model, so you only have to specify attributes in your config that you actually want to change. String values may use expressions. The variable context defaults to the 'current' container, but parent values may be accessed through the special "parent" property. get* can take either a simple property name (foo), or an EL expression (${foo.bar}).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	ExpressionContainerConfig.ExpressionTransaction

Nested classes/interfaces inherited from class org.apache.shindig.config.BasicContainerConfig

BasicContainerConfig.BasicTransaction

Nested classes/interfaces inherited from interface org.apache.shindig.config.ContainerConfig

ContainerConfig.ConfigObserver, ContainerConfig.Transaction

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<String,Map<String,Object>>	rawConfig

Fields inherited from class org.apache.shindig.config.BasicContainerConfig

config, observers

Fields inherited from interface org.apache.shindig.config.ContainerConfig

CONTAINER_KEY, DEFAULT_CONTAINER, PARENT_KEY

Constructor Summary

Constructors

Constructor and Description
ExpressionContainerConfig(Expressions expressions)

Method Summary

Methods

Modifier and Type	Method and Description
protected javax.el.ELContext	createExpressionContext(String container)
protected Expressions	getExpressions()
Object	getProperty(String container, String property)
ContainerConfig.Transaction	newTransaction() Creates a new transaction to create, modify or remove containers.

Methods inherited from class org.apache.shindig.config.BasicContainerConfig

addConfigObserver, getBool, getContainers, getInt, getList, getMap, getProperties, getString, notifyObservers, toString

Methods inherited from class java.lang.Object

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

Field Detail

rawConfig

protected Map<String,Map<String,Object>> rawConfig

Constructor Detail

ExpressionContainerConfig

public ExpressionContainerConfig(Expressions expressions)

Method Detail

newTransaction

public ContainerConfig.Transaction newTransaction()

Creates a new transaction to create, modify or remove containers.

Specified by:

newTransaction in interface ContainerConfig

Overrides:

newTransaction in class BasicContainerConfig

Returns:

The new transaction object.

getProperty

public Object getProperty(String container,
                 String property)

Specified by:

getProperty in interface ContainerConfig

Overrides:

getProperty in class BasicContainerConfig

Returns:

The configuration property stored under the given name for the given container.

getExpressions

protected Expressions getExpressions()

createExpressionContext

protected javax.el.ELContext createExpressionContext(String container)