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DelegateContext - JBOSS Portal 2.2 API 英文版文档

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org.jboss.portal.format.template
Class DelegateContext

java.lang.Object
  org.jboss.portal.format.template.DelegateContext

All Implemented Interfaces:

Context

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public class DelegateContext

extends java.lang.Object

implements Context

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Field Summary

 

Fields inherited from interface org.jboss.portal.format.template.Context

NULL_CONTEXT

 

Constructor Summary

DelegateContext()           creates a new DelegateContext object.

DelegateContext(java.util.Map delegate, java.util.Map children)           creates a new DelegateContext object.

 

Method Summary
void	append(java.lang.String name, Context ctx)           add an existing data context into this context for use in template loops or nested template data.
java.util.Iterator	childIterator(java.lang.String name)           get an iterator for the nested/loop data contexts
static DelegateContext	createWithChildren(java.util.Map children)           create a new "root" data context and name/value pairs to be used as nested or loop data
static DelegateContext	createWithValues(java.util.Map values)           create a new data context with already existing name/value pairs
java.lang.String	get(java.lang.String key)           get the template data from the context
DelegateContext	next(java.lang.String name)           create a new object to place data for use in template loops or nested template data.
Context	put(java.lang.String key, java.lang.String value)           add data to be rendered in the template through variable substitution

 

Methods inherited from class java.lang.Object

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

 

Constructor Detail

DelegateContext

public DelegateContext()

creates a new DelegateContext object.

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DelegateContext

public DelegateContext(java.util.Map delegate,
                       java.util.Map children)

creates a new DelegateContext object.

Parameters:

delegate - name/value pairs for "root" data

children - name/value pairs for nested or loop data

Method Detail

createWithChildren

public static final DelegateContext createWithChildren(java.util.Map children)

create a new "root" data context and name/value pairs to be used as nested or loop data

Parameters:

children - name/value pairs for nested or loop data

Returns:

context to continue adding template data too

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createWithValues

public static final DelegateContext createWithValues(java.util.Map values)

create a new data context with already existing name/value pairs

Parameters:

values - existing name/value pair map

Returns:

context to continue adding template data too

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append

public void append(java.lang.String name,
                   Context ctx)

add an existing data context into this context for use in template loops or nested template data.

Parameters:

name - variable prefix name

ctx - context to add

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childIterator

public java.util.Iterator childIterator(java.lang.String name)

Description copied from interface: Context

get an iterator for the nested/loop data contexts

Specified by:

childIterator in interface Context

Parameters:

name - template variable prefix name

Returns:

iterator for the children

See Also:

Context.childIterator(java.lang.String)

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get

public java.lang.String get(java.lang.String key)

Description copied from interface: Context

get the template data from the context

Specified by:

get in interface Context

Parameters:

key - template variable name

Returns:

template value

See Also:

Context.get(java.lang.String)

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next

public DelegateContext next(java.lang.String name)

create a new object to place data for use in template loops or nested template data. tpl var format: { prefix.VAR_NAME }

Parameters:

name - variable prefix name

Returns:

delegate context that will contain the loop or nested data

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put

public Context put(java.lang.String key,
                   java.lang.String value)

Description copied from interface: Context

add data to be rendered in the template through variable substitution

Specified by:

put in interface Context

Parameters:

key - template variable name

value - value to render in template

Returns:

context to place data into

See Also:

Context.put(java.lang.String, java.lang.String)

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