edu.iu.dsc.tws.tset.fn.impl

Class ArrowBasedSourceFunction

java.lang.Object

edu.iu.dsc.tws.api.tset.fn.BaseTFunction<T,T>

edu.iu.dsc.tws.api.tset.fn.BaseSourceFunc<java.lang.Object>

edu.iu.dsc.tws.tset.fn.impl.ArrowBasedSourceFunction

All Implemented Interfaces:

SourceFunc<java.lang.Object>, TFunction<java.lang.Object,java.lang.Object>, java.io.Serializable

public class ArrowBasedSourceFunction
extends BaseSourceFunc<java.lang.Object>
implements java.io.Serializable

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
ArrowBasedSourceFunction(java.lang.String arrowInputdirectory, java.lang.String arrowinputFile, int parallelism, java.lang.String schema)

Method Summary

Modifier and Type	Method and Description
boolean	hasNext() Weather we have more data
java.lang.Object	next() Get the next value
void	prepare(TSetContext context) Prepare method

Methods inherited from class edu.iu.dsc.tws.api.tset.fn.BaseTFunction

getInput, getTSetContext

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.iu.dsc.tws.api.tset.fn.SourceFunc

close

Methods inherited from interface edu.iu.dsc.tws.api.tset.fn.TFunction

end

Constructor Detail

ArrowBasedSourceFunction

public ArrowBasedSourceFunction(java.lang.String arrowInputdirectory,
                                java.lang.String arrowinputFile,
                                int parallelism,
                                java.lang.String schema)

Method Detail

prepare

public void prepare(TSetContext context)

Prepare method

Specified by:

prepare in interface TFunction<java.lang.Object,java.lang.Object>

Overrides:

prepare in class BaseTFunction<java.lang.Object,java.lang.Object>

Parameters:

context - CONTEXT

hasNext

public boolean hasNext()

Description copied from interface: SourceFunc

Weather we have more data

Specified by:

hasNext in interface SourceFunc<java.lang.Object>

Returns:

true if there is more data to be read

next

public java.lang.Object next()

Description copied from interface: SourceFunc

Get the next value

Specified by:

next in interface SourceFunc<java.lang.Object>

Returns:

the next value