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.