| java.lang.Object
 javax.script.AbstractScriptEngine
All known Subclasses: bsh.engine.BshScriptEngine,
| AbstractScriptEngine | | abstract public class AbstractScriptEngine implements ScriptEngine(Code) | | Provides a standard implementation for several of the variants of the eval
method.
eval(Reader)eval(String)
eval(String, Bindings) eval(Reader, Bindings)
are implemented using the abstract methods
eval(Reader,ScriptContext) or
eval(String, ScriptContext)
with a SimpleScriptContext.
A SimpleScriptContext is used as the default ScriptContext
of the AbstractScriptEngine..
author:
Mike Grogan
version:
1.0
since:
1.6
|
| Field Summary | |
| protected ScriptContext | context
The default ScriptContext of this AbstractScriptEngine. |
| Constructor Summary | |
| public | AbstractScriptEngine()
Creates a new instance of AbstractScriptEngine using a SimpleScriptContext
as its default ScriptContext. | | public | AbstractScriptEngine(Bindings n)
Creates a new instance using the specified Bindings as the
ENGINE_SCOPE Bindings in the protected ScriptContext field. |
| Method Summary | |
| public Object | eval(Reader reader, Bindings bindings)
eval(Reader, Bindings) calls the abstract
eval(Reader, ScriptContext) method, passing it a ScriptContext
whose Reader, Writers and Bindings for scopes other that ENGINE_SCOPE
are identical to those members of the protected ScriptContext field. | | public Object | eval(String script, Bindings bindings)
Same as eval(Reader, Bindings) except that the abstract
eval(String, ScriptContext) is used.
Parameters:
script - A String containing the source of the script.
Parameters:
bindings - A Bindings to use as the ENGINE_SCOPEwhile the script executes. | | public Object | eval(Reader reader)
eval(Reader) calls the abstract
eval(Reader, ScriptContext) passing the value of the context
field.
Parameters:
reader - A Reader containing the source of the script. | | public Object | eval(String script)
Same as eval(Reader) except that the abstract
eval(String, ScriptContext) is used.
Parameters:
script - A String containing the source of the script. | | public Object | get(String key)
Gets the value for the specified key in the ENGINE_SCOPE of the
protected ScriptContext field. | | public Bindings | getBindings(int scope)
Returns the Bindings with the specified scope value in
the protected ScriptContext field.
Parameters:
scope - The specified scope The corresponding Bindings. | | public ScriptContext | getContext()
Returns the value of the protected ScriptContext> field. | | protected ScriptContext | getScriptContext(Bindings nn)
Returns a SimpleScriptContext. | | public void | put(String key, Object value)
Sets the specified value with the specified key in the ENGINE_SCOPE
Bindings of the protected ScriptContext field. | | public void | setBindings(Bindings bindings, int scope)
Sets the Bindings with the corresponding scope value in the
context field.
Parameters:
bindings - The specified Bindings.
Parameters:
scope - The specified scope. | | public void | setContext(ScriptContext ctxt)
Sets the value of the protected ScriptContext field to the specified
ScriptContext. |
| context | | protected ScriptContext context(Code) | | The default ScriptContext of this AbstractScriptEngine.
|
| AbstractScriptEngine | | public AbstractScriptEngine()(Code) | | Creates a new instance of AbstractScriptEngine using a SimpleScriptContext
as its default ScriptContext.
|
| AbstractScriptEngine | | public AbstractScriptEngine(Bindings n)(Code) | | Creates a new instance using the specified Bindings as the
ENGINE_SCOPE Bindings in the protected ScriptContext field.
Parameters:
n - The specified Bindings. |
| eval | | public Object eval(Reader reader, Bindings bindings) throws ScriptException(Code) | | eval(Reader, Bindings) calls the abstract
eval(Reader, ScriptContext) method, passing it a ScriptContext
whose Reader, Writers and Bindings for scopes other that ENGINE_SCOPE
are identical to those members of the protected ScriptContext field. The specified
Bindings is used instead of the ENGINE_SCOPE
Bindings of the context field.
Parameters:
reader - A Reader containing the source of the script.
Parameters:
bindings - A Bindings to use for the ENGINE_SCOPEwhile the script executes. The return value from eval(Reader, ScriptContext) |
| eval | | public Object eval(String script, Bindings bindings) throws ScriptException(Code) | | Same as eval(Reader, Bindings) except that the abstract
eval(String, ScriptContext) is used.
Parameters:
script - A String containing the source of the script.
Parameters:
bindings - A Bindings to use as the ENGINE_SCOPEwhile the script executes. The return value from eval(String, ScriptContext) |
| eval | | public Object eval(Reader reader) throws ScriptException(Code) | | eval(Reader) calls the abstract
eval(Reader, ScriptContext) passing the value of the context
field.
Parameters:
reader - A Reader containing the source of the script. The return value from eval(Reader, ScriptContext) |
| eval | | public Object eval(String script) throws ScriptException(Code) | | Same as eval(Reader) except that the abstract
eval(String, ScriptContext) is used.
Parameters:
script - A String containing the source of the script. The return value from eval(String, ScriptContext) |
| get | | public Object get(String key)(Code) | | Gets the value for the specified key in the ENGINE_SCOPE of the
protected ScriptContext field.
The value for the specified key. |
| getBindings | | public Bindings getBindings(int scope)(Code) | | Returns the Bindings with the specified scope value in
the protected ScriptContext field.
Parameters:
scope - The specified scope The corresponding Bindings. IllegalArgumentException if the value of scope isinvalid for the type the protected ScriptContext field. |
| getContext | | public ScriptContext getContext()(Code) | | Returns the value of the protected ScriptContext> field.
The value of the protected ScriptContext field. |
| getScriptContext | | protected ScriptContext getScriptContext(Bindings nn)(Code) | | Returns a SimpleScriptContext. The SimpleScriptContext:
- Uses the specified
Bindings for its ENGINE_SCOPE
- Uses the
Bindings returned by the abstract getGlobalScope
method as its GLOBAL_SCOPE
- Uses the Reader and Writer in the default
ScriptContext of this
ScriptEngine
A SimpleScriptContext returned by this method is used to implement eval methods
using the abstract eval(Reader,Bindings) and eval(String,Bindings)
versions.
Parameters:
nn - Bindings to use for the ENGINE_SCOPE The SimpleScriptContext |
| put | | public void put(String key, Object value)(Code) | | Sets the specified value with the specified key in the ENGINE_SCOPE
Bindings of the protected ScriptContext field.
Parameters:
key - The specified key.
Parameters:
value - The specified value. |
| setBindings | | public void setBindings(Bindings bindings, int scope)(Code) | | Sets the Bindings with the corresponding scope value in the
context field.
Parameters:
bindings - The specified Bindings.
Parameters:
scope - The specified scope. IllegalArgumentException if the value of scope isinvalid for the type the context field. |
| setContext | | public void setContext(ScriptContext ctxt)(Code) | | Sets the value of the protected ScriptContext field to the specified
ScriptContext.
Parameters:
ctxt - The specified ScriptContext. |
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