Interface JexlMethod
public interface JexlMethod
Interface used for regular method invocation.
 Ex.
 
 ${foo.bar()}
 - Since:
- 1.0
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Method SummaryModifier and TypeMethodDescriptionClass<?> returns the return type of the method invoked.Invocation method, called when the method invocation should be performed and a value returned.booleanSpecifies if this JexlMethod is cacheable and able to be reused for this class of object it was returned for.booleanChecks whether a tryInvoke return value indicates a failure or not.Attempts to reuse this JexlMethod, checking that it is compatible with the actual set of arguments.
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Method Details- 
getReturnTypeClass<?> getReturnType()returns the return type of the method invoked.- Returns:
- return type
 
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invokeInvocation method, called when the method invocation should be performed and a value returned.- Parameters:
- obj- the object
- params- method parameters.
- Returns:
- the result
- Throws:
- Exception- on any error.
 
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isCacheableboolean isCacheable()Specifies if this JexlMethod is cacheable and able to be reused for this class of object it was returned for.- Returns:
- true if can be reused for this class, false if not
 
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tryFailedChecks whether a tryInvoke return value indicates a failure or not.Usage is : Object r = tryInvoke(...); if (tryFailed(r) {...} else {...}- Parameters:
- rval- the value returned by tryInvoke
- Returns:
- true if tryInvoke failed, false otherwise
 
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tryInvokeAttempts to reuse this JexlMethod, checking that it is compatible with the actual set of arguments. Related to isCacheable since this method is often used with cached JexlMethod instances.- Parameters:
- name- the method name
- obj- the object to invoke the method upon
- params- the method arguments
- Returns:
- the result of the method invocation that should be checked by tryFailed to determine if it succeeded or failed.
- Throws:
- JexlException.TryFailed- if the underlying method was invoked but threw an exception (- InvocationTargetException)
 
 
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