com.ibm.bsf.engines.jacl
Class JaclEngine
java.lang.Object
|
+--com.ibm.bsf.util.BSFEngineImpl
|
+--com.ibm.bsf.engines.jacl.JaclEngine
- public class JaclEngine
- extends BSFEngineImpl
This is the interface to Scriptics's Jacl (Tcl) from the
Bean Scripting Framework.
- Author:
- Sanjiva Weerawarana
Method Summary |
java.lang.Object |
call(java.lang.Object obj,
java.lang.String method,
java.lang.Object[] args)
This is used by an application to call into the scripting engine
to make a function/method call. |
void |
declareBean(BSFDeclaredBean bean)
Declare a bean |
java.lang.Object |
eval(java.lang.String source,
int lineNo,
int columnNo,
java.lang.Object oscript)
This is used by an application to evaluate a string containing
some expression. |
void |
initialize(BSFManager mgr,
java.lang.String lang,
java.util.Vector declaredBeans)
Initialize the engine. |
void |
undeclareBean(BSFDeclaredBean bean)
Undeclare a previously declared bean. |
Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
JaclEngine
public JaclEngine()
initialize
public void initialize(BSFManager mgr,
java.lang.String lang,
java.util.Vector declaredBeans)
throws BSFException
- Initialize the engine.
- Overrides:
- initialize in class BSFEngineImpl
- Tags copied from interface: BSFEngine
- Parameters:
mgr
- The BSFManager that's hosting this engine.lang
- Language string which this engine is handling.declaredBeans
- Vector of BSFDeclaredObject containing beans
that should be declared into the language runtime at init
time as best as possible.- Throws:
- BSFException - if anything goes wrong while init'ing a
BSFException is thrown. The reason indicates the problem.
eval
public java.lang.Object eval(java.lang.String source,
int lineNo,
int columnNo,
java.lang.Object oscript)
throws BSFException
- This is used by an application to evaluate a string containing
some expression.
- Tags copied from interface: BSFEngine
- Parameters:
source
- (context info) the source of this expression
(e.g., filename)lineNo
- (context info) the line number in source for exprcolumnNo
- (context info) the column number in source for exprexpr
- the expression to evaluate- Throws:
- BSFException - if anything goes wrong while eval'ing a
BSFException is thrown. The reason indicates the problem.
call
public java.lang.Object call(java.lang.Object obj,
java.lang.String method,
java.lang.Object[] args)
throws BSFException
- Description copied from interface: BSFEngine
- This is used by an application to call into the scripting engine
to make a function/method call. The "object" argument is the object
whose method is to be called, if that applies. For non-OO languages,
this is typically ignored and should be given as null. For pretend-OO
languages such as VB, this would be the (String) name of the object.
The arguments are given in the args array.
- Parameters:
method
- The name of the method to call.args
- an array of arguments to be
passed to the extension, which may be either
Vectors of Nodes, or Strings.
declareBean
public void declareBean(BSFDeclaredBean bean)
throws BSFException
- Declare a bean
- Overrides:
- declareBean in class BSFEngineImpl
- Tags copied from interface: BSFEngine
- Parameters:
bean
- the bean to declare- Throws:
- BSFException - if the engine cannot do this operation
undeclareBean
public void undeclareBean(BSFDeclaredBean bean)
throws BSFException
- Undeclare a previously declared bean.
- Overrides:
- undeclareBean in class BSFEngineImpl
- Tags copied from interface: BSFEngine
- Parameters:
bean
- the bean to undeclare- Throws:
- BSFException - if the engine cannot do this operation