org.apache.pig.tools.parameters
Class ParameterSubstitutionPreprocessor

java.lang.Object
  org.apache.pig.tools.parameters.ParameterSubstitutionPreprocessor

public class ParameterSubstitutionPreprocessor
extends Object

Constructor Summary

ParameterSubstitutionPreprocessor(int limit)

Method Summary

void	genSubstitutedFile(BufferedReader pigInput, Writer pigOutput, String[] args, String[] argFiles) This is the main API that takes script template and produces pig script

Methods inherited from class java.lang.Object

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

Constructor Detail

ParameterSubstitutionPreprocessor

public ParameterSubstitutionPreprocessor(int limit)

Parameters:

limit - - max number of parameters to expect. Smaller values would would not cause incorrect behavior but would impact performance

Method Detail

genSubstitutedFile

public void genSubstitutedFile(BufferedReader pigInput,
                               Writer pigOutput,
                               String[] args,
                               String[] argFiles)
                        throws ParseException

This is the main API that takes script template and produces pig script

Parameters:

pigInput - - input stream that contains pig file

pigOutput - - stream where transformed file is written

args - - command line arguments in the order they appear on the command line; format: key=val

argFiles - - list of configuration files in the order they appear on the command line

Throws:

ParseException