org.apache.pig.tools.parameters

Class ParameterSubstitutionPreprocessor

java.lang.Object

org.apache.pig.tools.parameters.ParameterSubstitutionPreprocessor

public class ParameterSubstitutionPreprocessor
extends Object

Constructor Summary

Constructors

Constructor and Description
ParameterSubstitutionPreprocessor(int limit)
ParameterSubstitutionPreprocessor(PreprocessorContext pc)

Method Summary

Modifier and Type	Method and Description
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