org.camunda.bpm.engine.impl.spin
Class SpinFunctionMapper

java.lang.Object
  org.camunda.bpm.engine.impl.javax.el.FunctionMapper
      org.camunda.bpm.engine.impl.spin.SpinFunctionMapper

public class SpinFunctionMapper
extends FunctionMapper

A FunctionMapper which resolves the Spin functions for Expression Language.

Lazy loading: This implementation supports lazy loading: the Java Methods are loaded upon the first request.

Caching: once the methods are loaded, they are cached in a Map for efficient retrieval.

Author:

Daniel Meyer

Field Summary

static Map<String,Method>

SPIN_FUNCTION_MAP

Constructor Summary

SpinFunctionMapper()

Method Summary

protected void	createMethodBindings()
protected void	ensureSpinFunctionMapInitialized()
Method	resolveFunction(String prefix, String localName) Resolves the specified prefix and local name into a java.lang.Method.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

SPIN_FUNCTION_MAP

public static Map<String,Method> SPIN_FUNCTION_MAP

Constructor Detail

SpinFunctionMapper

public SpinFunctionMapper()

Method Detail

resolveFunction

public Method resolveFunction(String prefix,
                              String localName)

Description copied from class: FunctionMapper

Resolves the specified prefix and local name into a java.lang.Method. Returns null if no function could be found that matches the given prefix and local name.

Specified by:

resolveFunction in class FunctionMapper

Parameters:

prefix - the prefix of the function, or "" if no prefix. For example, "fn" in ${fn:method()}, or "" in ${method()}.

localName - the short name of the function. For example, "method" in ${fn:method()}.

Returns:

the static method to invoke, or null if no match was found.

ensureSpinFunctionMapInitialized

protected void ensureSpinFunctionMapInitialized()

createMethodBindings

protected void createMethodBindings()