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The following page has been changed by UtkarshSrivastava: http://wiki.apache.org/pig/PigFunctions ------------------------------------------------------------------------------ STORE uniqueIPs INTO '/iplist.txt' USING MyListStorage(); }}} - In the above example, !MyListStorage() serves as a load function as well as a store function; !MyHostExtractor() and !MyIPLookup() are eval functions. `myFunctions.jar` is a jar file that contains the classes for the user-defined functions. + In the above example, !MyListStorage() serves as a load function as well as a store function; !MyHostExtractor() and MyIPLookup() are eval functions. `myFunctions.jar` is a jar file that contains the classes for the user-defined functions. [[Anchor(How_to_write_functions)]] @@ -41, +41 @@ Click below to learn how to build your own: * EvalFunction - * Load/Store Function (These are the most difficult to write, and usually, the inbuilt ones should be enough) + * [http://wiki.apache.org/pig/StorageFunction Load/Store Function] (These are the most difficult to write, and usually, the inbuilt ones should be enough) [[Anchor(Ok,_I_have_written_my_function,_how_to_use_it?)]] === Ok, I have written my function, how to use it? === @@ -53, +53 @@ * Then use your function, as you would use a builtin! Its that simple. Example: + + The following example describes how to use your Eval function. Follow the same procedure for your Load/Store function. 1. Create your function `/src/myfunc/MyEvalFunc.java`
