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From "Pradeep Kamath (JIRA)" <j...@apache.org>
Subject [jira] Updated: (PIG-276) Allow UDFs to have different implementations based on input types
Date Thu, 10 Jul 2008 07:13:31 GMT

     [ https://issues.apache.org/jira/browse/PIG-276?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Pradeep Kamath updated PIG-276:
-------------------------------


Due to patch PIG-269's latest commit, there will be compilation errors relating to the following
code in src/org/apache/pig/impl/PigContext.java *after* applying the patch supplied for this
issue.

{code}
public static Object instantiateFuncFromSpec(FuncSpec funcSpec)  {
...
catch(NoSuchMethodException nme) {
            // Second channce. Try with var arg constructor
            try {
                Constructor c = objClass.getConstructor(String[].class);
                String[] argArr = args.toArray(new String[0]) ;
                Object[] wrappedArgs = new Object[1] ;
                wrappedArgs[0] = argArr ;
                ret =  c.newInstance(wrappedArgs);
            }
...
{code}

This will need to be changed to :

{code}
public static Object instantiateFuncFromSpec(FuncSpec funcSpec)  {
...
      }
        catch(NoSuchMethodException nme) {
            // Second channce. Try with var arg constructor
            try {
                Constructor c = objClass.getConstructor(String[].class);
                
                Object[] wrappedArgs = new Object[1] ;
                wrappedArgs[0] = args ;
                ret =  c.newInstance(wrappedArgs);
            }
...
{code}

> Allow UDFs to have different implementations based on input types
> -----------------------------------------------------------------
>
>                 Key: PIG-276
>                 URL: https://issues.apache.org/jira/browse/PIG-276
>             Project: Pig
>          Issue Type: Sub-task
>            Reporter: Alan Gates
>            Assignee: Pradeep Kamath
>         Attachments: EvalFunc.patch, EvalFunc_Combined.patch, EvalFunc_unittestcases.patch,
udf_funcspec_src.patch, udf_funcspec_tests.patch
>
>


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