public class JexlScriptEngine extends AbstractScriptEngine implements Compilable
This implementation gives access to both ENGINE_SCOPE and GLOBAL_SCOPE bindings. When a JEXL script accesses a variable for read or write, this implementation checks first ENGINE and then GLOBAL scope. The first one found is used. If no variable is found, and the JEXL script is writing to a variable, it will be stored in the ENGINE scope.
The implementation also creates the "JEXL" script object as an instance of the
class JexlScriptEngine.JexlScriptObject for access to utility methods and variables.
| Modifier and Type | Class and Description |
|---|---|
class |
JexlScriptEngine.JexlScriptObject
Implements engine and engine context properties for use by JEXL scripts.
|
| Modifier and Type | Field and Description |
|---|---|
static String |
CONTEXT_KEY
Reserved key for context (mandated by JSR-223).
|
static String |
JEXL_OBJECT_KEY
Reserved key for JexlScriptObject.
|
contextARGV, ENGINE, ENGINE_VERSION, FILENAME, LANGUAGE, LANGUAGE_VERSION, NAME| Constructor and Description |
|---|
JexlScriptEngine()
Default constructor.
|
JexlScriptEngine(ScriptEngineFactory factory)
Create a scripting engine using the supplied factory.
|
| Modifier and Type | Method and Description |
|---|---|
CompiledScript |
compile(Reader script) |
CompiledScript |
compile(String script) |
Bindings |
createBindings() |
Object |
eval(Reader reader,
ScriptContext context) |
Object |
eval(String script,
ScriptContext context) |
ScriptEngineFactory |
getFactory() |
eval, eval, eval, eval, get, getBindings, getContext, getScriptContext, put, setBindings, setContextpublic static final String CONTEXT_KEY
public static final String JEXL_OBJECT_KEY
public JexlScriptEngine()
Only intended for use when not using a factory.
Sets the factory to JexlScriptEngineFactory.
public JexlScriptEngine(ScriptEngineFactory factory)
factory - the factory which created this instance.NullPointerException - if factory is nullpublic Bindings createBindings()
createBindings in interface ScriptEnginepublic Object eval(Reader reader, ScriptContext context) throws ScriptException
eval in interface ScriptEngineScriptExceptionpublic Object eval(String script, ScriptContext context) throws ScriptException
eval in interface ScriptEngineScriptExceptionpublic ScriptEngineFactory getFactory()
getFactory in interface ScriptEnginepublic CompiledScript compile(String script) throws ScriptException
compile in interface CompilableScriptExceptionpublic CompiledScript compile(Reader script) throws ScriptException
compile in interface CompilableScriptExceptionCopyright © 2021 Internet2. All rights reserved.