public final class ConstructorMethod extends Object implements JexlMethod
| Modifier and Type | Method and Description |
|---|---|
static ConstructorMethod |
discover(Introspector is,
Object ctorHandle,
Object... args)
Discovers a class constructor and wrap it as a JexlMethod.
|
Class<?> |
getReturnType()
returns the return type of the method invoked.
|
Object |
invoke(Object obj,
Object... params)
Invocation method, called when the method invocation should be performed
and a value returned.
|
boolean |
isCacheable()
Specifies if this JexlMethod is cacheable and able to be reused for this
class of object it was returned for.
|
boolean |
tryFailed(Object rval)
Checks whether a tryInvoke return value indicates a failure or not.
|
Object |
tryInvoke(String name,
Object obj,
Object... params)
Attempts to reuse this JexlMethod, checking that it is compatible with
the actual set of arguments.
|
public static ConstructorMethod discover(Introspector is, Object ctorHandle, Object... args)
is - the introspectorctorHandle - a class or class nameargs - constructor argumentsJexlMethodpublic Object invoke(Object obj, Object... params) throws Exception
JexlMethodinvoke in interface JexlMethodobj - the objectparams - method parameters.Exception - on any error.public Object tryInvoke(String name, Object obj, Object... params)
JexlMethodtryInvoke in interface JexlMethodname - the method nameobj - the object to invoke the method uponparams - the method argumentspublic boolean tryFailed(Object rval)
JexlMethodUsage is : Object r = tryInvoke(...); if (tryFailed(r) {...} else {...}
tryFailed in interface JexlMethodrval - the value returned by tryInvokepublic boolean isCacheable()
JexlMethodisCacheable in interface JexlMethodpublic Class<?> getReturnType()
JexlMethodgetReturnType in interface JexlMethodCopyright © 2001–2021 The Apache Software Foundation. All rights reserved.