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java.lang.Object org.apache.velocity.tools.generic.SafeConfig org.apache.velocity.tools.generic.ContextTool
@DefaultKey(value="context") @InvalidScope(value={"application","session"}) public class ContextTool
Tool for convenient access to Context
data and
meta-data.
Template example(s): #foreach( $key in $context.keys ) $key = $context.get($key) #end Toolbox configuration: <tools> <toolbox scope="request"> <tool class="org.apache.velocity.tools.generic.ContextTool"/> </toolbox> </tools>
This class is only designed for use as a request-scope tool.
Field Summary | |
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protected org.apache.velocity.context.Context |
context
|
protected java.util.Map<java.lang.String,java.lang.Object> |
toolbox
|
Fields inherited from class org.apache.velocity.tools.generic.SafeConfig |
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LOCK_CONFIG_KEY, OLD_LOCK_CONFIG_KEY, SAFE_MODE_KEY |
Constructor Summary | |
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ContextTool()
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Method Summary | |
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protected void |
configure(ValueParser parser)
Initializes this instance for the current request. |
boolean |
contains(java.lang.Object refName)
Returns true if the context contains a value for the specified
reference name (aka context key). |
protected void |
fillKeyset(java.util.Set keys)
Actually do the work of filling in the set of keys for getKeys() here so subclasses can add keys too. |
java.lang.Object |
get(java.lang.Object refName)
Retrieves the value for the specified reference name (aka context key). |
java.util.Set |
getKeys()
Return a Set of the available reference keys in the current
context. |
org.apache.velocity.context.Context |
getThis()
Returns the context being analyzed by this tool. |
java.util.Map<java.lang.String,java.lang.Object> |
getToolbox()
Returns a read-only view of the toolbox Map
for this context. |
java.util.Set |
getValues()
Return a Set of the available values in the current
context. |
Methods inherited from class org.apache.velocity.tools.generic.SafeConfig |
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configure, isConfigLocked, isSafeMode, setLockConfig, setSafeMode |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected org.apache.velocity.context.Context context
protected java.util.Map<java.lang.String,java.lang.Object> toolbox
Constructor Detail |
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public ContextTool()
Method Detail |
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protected void configure(ValueParser parser)
configure
in class SafeConfig
public org.apache.velocity.context.Context getThis()
public java.util.Map<java.lang.String,java.lang.Object> getToolbox()
Returns a read-only view of the toolbox Map
for this context.
null
if such a map is not availablepublic java.util.Set getKeys()
Return a Set
of the available reference keys in the current
context.
protected void fillKeyset(java.util.Set keys)
getKeys()
here so subclasses can add keys too.
public java.util.Set getValues()
Return a Set
of the available values in the current
context.
public boolean contains(java.lang.Object refName)
Returns true
if the context contains a value for the specified
reference name (aka context key).
public java.lang.Object get(java.lang.Object refName)
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