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)

ParameterSubstitutionPreprocessor(PreprocessorContext pc)

Method Summary

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

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

ParameterSubstitutionPreprocessor

public ParameterSubstitutionPreprocessor(PreprocessorContext pc)

Method Detail

genSubstitutedFile

public void genSubstitutedFile(BufferedReader pigInput,
                               Writer pigOutput)
                        throws org.apache.pig.tools.parameters.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

paramVal - - map of parameter names to values

Throws:

org.apache.pig.tools.parameters.ParseException

genSubstitutedFile

public void genSubstitutedFile(BufferedReader pigInput,
                               Writer pigOutput,
                               String[] params,
                               String[] paramFiles)
                        throws org.apache.pig.tools.parameters.ParseException

Throws:

org.apache.pig.tools.parameters.ParseException