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java.lang.Object | +--com.caucho.xpath.Env
Global and local variable environment. The April XSLT draft introduces global and local variables. The Env class contains those bindings.
Because this class exists only to support XSL, it makes a number of assumptions that would be invalid for a typical API. Specifically, the variable names must be interned strings, i.e. variable matching uses '==', not equals.
Local variables are handled like a stack. They are pushed and popped as necessary. The top variables shadow bottom variables.
In other words, although the API somewhat resembles a HashMap, it can't be used as a generic hash map.
Constructor Summary | |
Env()
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Method Summary | |
void |
addFunction(java.lang.String name,
java.lang.Object fun)
Adds and extension function |
void |
addVar(java.lang.String name,
java.lang.Object value)
Adds the value associated with name. |
void |
clear()
Clears all values in the local environment. |
java.lang.Object |
getCache(java.lang.Object key)
|
java.lang.Object |
getVar(java.lang.String name)
Returns the value associated with name. |
void |
popVars(int count)
Pops the last count vars from the local stack. |
void |
setCache(java.lang.Object key,
java.lang.Object value)
|
java.util.HashMap |
setFunctions(java.util.HashMap functions)
Sets the extension function library |
void |
setGlobal(java.lang.String name,
java.lang.Object value)
Sets a global variable. |
void |
setVar(java.lang.String name,
java.lang.Object value)
Sets the value associated with name. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
public Env()
Method Detail |
public void clear()
public java.lang.Object getVar(java.lang.String name)
name must be interned
public void addVar(java.lang.String name, java.lang.Object value)
name must be interned
public void setVar(java.lang.String name, java.lang.Object value)
name must be interned
public void popVars(int count)
public void setGlobal(java.lang.String name, java.lang.Object value)
public java.util.HashMap setFunctions(java.util.HashMap functions)
function
- new function librarypublic void addFunction(java.lang.String name, java.lang.Object fun)
function
- new function librarypublic java.lang.Object getCache(java.lang.Object key)
public void setCache(java.lang.Object key, java.lang.Object value)
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