Package org.zkoss.zk.scripting.groovy
Class GroovyInterpreter
- java.lang.Object
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- org.zkoss.zk.scripting.util.GenericInterpreter
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- org.zkoss.zk.scripting.groovy.GroovyInterpreter
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- All Implemented Interfaces:
Interpreter
public class GroovyInterpreter extends GenericInterpreter
Groovy interpreter.- Author:
- tomyeh
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Field Summary
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Fields inherited from class org.zkoss.zk.scripting.util.GenericInterpreter
UNDEFINED
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Constructor Summary
Constructors Constructor Description GroovyInterpreter()
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description protected boolean
contains(java.lang.String name)
Tests whether a variable is defined in this interpreter.void
destroy()
Reset the owner (GenericInterpreter.getOwner()
) to null.protected void
exec(java.lang.String script)
Executes the specified script.protected java.lang.Object
get(java.lang.String name)
Gets the variable from the interpreter.Function
getFunction(java.lang.String name, java.lang.Class[] argTypes)
Returns the method.java.lang.Object
getNativeInterpreter()
Returns the native interpreter, or null if it is not initialized or destroyed.void
init(Page owner, java.lang.String zslang)
Initializes the interpreter.protected void
set(java.lang.String name, java.lang.Object value)
Sets the variable to the interpreter.protected void
unset(java.lang.String name)
Removes the variable from the interpreter.-
Methods inherited from class org.zkoss.zk.scripting.util.GenericInterpreter
afterExec, afterInterpret, beforeExec, beforeInterpret, contains, containsVariable, containsVariable, get, getClass, getCurrent, getFromNamespace, getFromNamespace, getFunction, getImplicit, getLanguage, getOwner, getVariable, getVariable, interpret, set, setVariable, setVariable, unset, unsetVariable, unsetVariable
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Method Detail
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getNativeInterpreter
public java.lang.Object getNativeInterpreter()
Returns the native interpreter, or null if it is not initialized or destroyed. From application's standpoint, it never returns null, and the returned object must be an instance ofGroovyShell
- Since:
- 3.0.2
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exec
protected void exec(java.lang.String script)
Description copied from class:GenericInterpreter
Executes the specified script. Deriving class shall provide an implementation of this method, rather than overridingGenericInterpreter.interpret(java.lang.String, org.zkoss.zk.ui.ext.Scope)
.- Specified by:
exec
in classGenericInterpreter
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contains
protected boolean contains(java.lang.String name)
Description copied from class:GenericInterpreter
Tests whether a variable is defined in this interpreter. Optional. Implement it if the interpreter can tell the difference between null and undefined.By default, it tests whether
GenericInterpreter.get(String)
returns non-null.- Overrides:
contains
in classGenericInterpreter
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get
protected java.lang.Object get(java.lang.String name)
Description copied from class:GenericInterpreter
Gets the variable from the interpreter. Optional. Implement it if you want to expose variables defined in the interpreter to Java codes.GenericInterpreter.beforeExec()
is called first, before this method is invoked.An empty (and fake) scope is pushed so
GenericInterpreter.getFromNamespace(java.lang.String)
always returns null.- Overrides:
get
in classGenericInterpreter
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set
protected void set(java.lang.String name, java.lang.Object value)
Description copied from class:GenericInterpreter
Sets the variable to the interpreter. Optional. Implement it if you want to allow Java codes to define a variable in the interpreter.GenericInterpreter.beforeExec()
is called first, before this method is invoked.- Overrides:
set
in classGenericInterpreter
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unset
protected void unset(java.lang.String name)
Description copied from class:GenericInterpreter
Removes the variable from the interpreter. Optional. Implement it if you want to allow Java codes to undefine a variable from the interpreter.GenericInterpreter.beforeExec()
is called first, before this method is invoked.- Overrides:
unset
in classGenericInterpreter
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init
public void init(Page owner, java.lang.String zslang)
Description copied from interface:Interpreter
Initializes the interpreter. It is called once when the new instance of interpreter is constructed.- Specified by:
init
in interfaceInterpreter
- Overrides:
init
in classGenericInterpreter
zslang
- the language this interpreter is associated with
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destroy
public void destroy()
Description copied from class:GenericInterpreter
Reset the owner (GenericInterpreter.getOwner()
) to null.- Specified by:
destroy
in interfaceInterpreter
- Overrides:
destroy
in classGenericInterpreter
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getFunction
public Function getFunction(java.lang.String name, java.lang.Class[] argTypes)
Returns the method.Currently it only looks for closures, and argTypes are ignored.
- Specified by:
getFunction
in interfaceInterpreter
- Overrides:
getFunction
in classGenericInterpreter
argTypes
- the list of argument (a.k.a., parameter) types. If null, Class[0] is assumed.
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