com.ibm.di.fc
Class JavaClassFC

java.lang.Object
  com.ibm.di.fc.Function
      com.ibm.di.fc.JavaClassFC

All Implemented Interfaces:

FunctionInterface, VersionInfoInterface

public class JavaClassFC
extends Function

This is a function component that calls a generic java method.

Field Summary

Fields inherited from class com.ibm.di.fc.Function

logger

Constructor Summary

JavaClassFC()

Method Summary

Object	getInstance() Return the instance that is used when invoking the method.
String[]	getMethods() Return a list of method names in our javaClass.
String	getVersion() Version information.
void	initialize(Object obj) Called once to initialize the function
Object	perform(Object obj) Makes a call to the java method.
void	setInstance(Object obj) Sets the instance that will be used when invoking the method.
boolean	updateSchema(FunctionConfig config) This method modifies the schema in the provided configuration.

Methods inherited from class com.ibm.di.fc.Function

debug, getConfiguration, getContext, getDebug, getLog, getParam, getRSInterface, getUI, initialize, logmsg, querySchema, setConfiguration, setContext, setDebug, setLog, setParam, setRSInterface, terminate, verifyInitialized

Methods inherited from class java.lang.Object

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

Constructor Detail

JavaClassFC

public JavaClassFC()

Method Detail

initialize

public void initialize(Object obj)
                throws Exception

Called once to initialize the function

Specified by:

initialize in interface FunctionInterface

Overrides:

initialize in class Function

Parameters:

obj - Additional information

Throws:

Exception - If the configuration is not complete, or the class or method cannot be found

setInstance

public void setInstance(Object obj)

Sets the instance that will be used when invoking the method. By default an instance created using the empty constructor will be used.

Parameters:

obj - The instance to use

getInstance

public Object getInstance()

Return the instance that is used when invoking the method.

Returns:

The instance used

perform

public Object perform(Object obj)
               throws Exception

Makes a call to the java method.

Parameters:

obj - An Entry containing the values of the parameters

Returns:

The result of calling the method

Throws:

Exception - If no method is found. If parameters are needed, and obj is not an Entry.

getVersion

public String getVersion()

Description copied from interface: VersionInfoInterface

Version information.

Returns:

version information

getMethods

public String[] getMethods()

Return a list of method names in our javaClass. Used by the Config Editor.

Returns:

a String[] containing names of all methods.

updateSchema

public boolean updateSchema(FunctionConfig config)
                     throws Exception

This method modifies the schema in the provided configuration. The intent is to allow the FC to provide a schema definition dynamically based on a given configuration. Note: changes the configuration of this component

Specified by:

updateSchema in interface FunctionInterface

Overrides:

updateSchema in class Function

Parameters:

config - - The new FunctionConfig to use

Returns:

- true if the schema was successfully updated

Throws:

Exception - : never