bboss.org.apache.velocity.context

类 ProxyVMContext

java.lang.Object

bboss.org.apache.velocity.context.ChainedInternalContextAdapter

bboss.org.apache.velocity.context.ProxyVMContext

所有已实现的接口:

Context, InternalContextAdapter, InternalEventContext, InternalWrapperContext

public class ProxyVMContext
extends ChainedInternalContextAdapter

Context for Velocity macro arguments. This special context combines ideas of earlier VMContext and VMProxyArgs by implementing routing functionality internally. This significantly reduces memory allocation upon macro invocations. Since the macro AST is now shared and RuntimeMacro directive is used, the earlier implementation of precalculating VMProxyArgs would not work. See Issue 607 for more info on this class.

从以下版本开始:

1.6

字段概要

从类继承的字段 bboss.org.apache.velocity.context.ChainedInternalContextAdapter

innerContext

构造器概要

构造器

构造器和说明
ProxyVMContext(InternalContextAdapter inner, RuntimeServices rsvc, boolean localContextScope)

方法概要

限定符和类型	方法和说明
void	addVMProxyArg(InternalContextAdapter context, java.lang.String macroArgumentName, java.lang.String literalMacroArgumentName, Node argumentValue) Used to put Velocity macro arguments into this context.
void	addVMProxyArg(InternalContextAdapter context, java.lang.String macroArgumentName, java.lang.String literalMacroArgumentName, Renderable argumentValue) Used to put Velocity macro bodyContext arguments into this context.
boolean	containsKey(java.lang.Object key) Indicates whether the specified key is in the context.
java.lang.Object	get(java.lang.String key) Implementation of the Context.get() method.
java.lang.Object[]	getKeys() Get all the keys for the values in the context.
java.lang.Object	localPut(java.lang.String key, java.lang.Object value) Allows callers to explicitly put objects in the local context, no matter what the velocimacro.context.local setting says.
java.lang.Object	put(java.lang.String key, java.lang.Object value) Impl of the Context.put() method.
protected java.lang.Object	put(java.lang.String key, java.lang.Object value, boolean forceLocal) Internal put method to select between local and global scope.
java.lang.Object	remove(java.lang.Object key) Removes the value associated with the specified key from the context.

从类继承的方法 bboss.org.apache.velocity.context.ChainedInternalContextAdapter

attachEventCartridge, getBaseContext, getCurrentMacroCallDepth, getCurrentMacroName, getCurrentResource, getCurrentTemplateName, getEventCartridge, getInternalUserContext, getMacroLibraries, getMacroNameStack, getTemplateNameStack, icacheGet, icachePut, popCurrentMacroName, popCurrentTemplateName, pushCurrentMacroName, pushCurrentTemplateName, setCurrentResource, setMacroLibraries

从类继承的方法 java.lang.Object

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

构造器详细资料

ProxyVMContext

public ProxyVMContext(InternalContextAdapter inner,
                      RuntimeServices rsvc,
                      boolean localContextScope)

参数:

inner - Velocity context for processing

rsvc - RuntimeServices provides logging reference

localContextScope - if true, all references are set to be local

方法详细资料

addVMProxyArg

public void addVMProxyArg(InternalContextAdapter context,
                          java.lang.String macroArgumentName,
                          java.lang.String literalMacroArgumentName,
                          Node argumentValue)
                   throws MethodInvocationException

Used to put Velocity macro arguments into this context.

参数:

context - rendering context

macroArgumentName - name of the macro argument that we received

literalMacroArgumentName - ".literal.$"+macroArgumentName

argumentValue - actual value of the macro argument

抛出:

MethodInvocationException

addVMProxyArg

public void addVMProxyArg(InternalContextAdapter context,
                          java.lang.String macroArgumentName,
                          java.lang.String literalMacroArgumentName,
                          Renderable argumentValue)
                   throws MethodInvocationException

Used to put Velocity macro bodyContext arguments into this context.

参数:

context - rendering context

macroArgumentName - name of the macro argument that we received

literalMacroArgumentName - ".literal.$"+macroArgumentName

argumentValue - actual value of the macro body

抛出:

MethodInvocationException

put

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

Impl of the Context.put() method.

指定者:

put 在接口中 Context

覆盖:

put 在类中 ChainedInternalContextAdapter

参数:

key - name of item to set

value - object to set to key

返回:

old stored object

localPut

public java.lang.Object localPut(java.lang.String key,
                                 java.lang.Object value)

Allows callers to explicitly put objects in the local context, no matter what the velocimacro.context.local setting says. Needed e.g. for loop variables in foreach.

指定者:

localPut 在接口中 InternalWrapperContext

覆盖:

localPut 在类中 ChainedInternalContextAdapter

参数:

key - name of item to set.

value - object to set to key.

返回:

old stored object

另请参阅:

InternalWrapperContext.localPut(java.lang.String,java.lang.Object)

put

protected java.lang.Object put(java.lang.String key,
                               java.lang.Object value,
                               boolean forceLocal)

Internal put method to select between local and global scope.

参数:

key - name of item to set

value - object to set to key

forceLocal - True forces the object into the local scope.

返回:

old stored object

get

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

Implementation of the Context.get() method. First checks localcontext, then arguments, then global context.

指定者:

get 在接口中 Context

覆盖:

get 在类中 ChainedInternalContextAdapter

参数:

key - name of item to get

返回:

stored object or null

containsKey

public boolean containsKey(java.lang.Object key)

从接口复制的说明: Context

Indicates whether the specified key is in the context.

指定者:

containsKey 在接口中 Context

覆盖:

containsKey 在类中 ChainedInternalContextAdapter

参数:

key - The key to look for.

返回:

Whether the key is in the context.

另请参阅:

Context.containsKey(java.lang.Object)

getKeys

public java.lang.Object[] getKeys()

从接口复制的说明: Context

Get all the keys for the values in the context.

指定者:

getKeys 在接口中 Context

覆盖:

getKeys 在类中 ChainedInternalContextAdapter

返回:

All the keys for the values in the context.

另请参阅:

Context.getKeys()

remove

public java.lang.Object remove(java.lang.Object key)

从接口复制的说明: Context

Removes the value associated with the specified key from the context.

指定者:

remove 在接口中 Context

覆盖:

remove 在类中 ChainedInternalContextAdapter

参数:

key - The name of the value to remove.

返回:

The value that the key was mapped to, or null if unmapped.

另请参阅:

Context.remove(java.lang.Object)