cascading.operation.text
Class FieldFormatter

java.lang.Object
  cascading.operation.BaseOperation
      cascading.operation.text.FieldFormatter

All Implemented Interfaces:

Function, Operation, Serializable

public class FieldFormatter
extends BaseOperation
implements Function

Class FieldFormatter formats the values in a Tuple with a given format and stuffs the result into a new field.

This function uses the Formatter class for formatting the argument tuple values into a new string.

See Also:

Serialized Form

Field Summary

static String

FIELD_NAME Field FIELD_NAME

Fields inherited from class cascading.operation.BaseOperation

fieldDeclaration, numArgs, trace

Fields inherited from interface cascading.operation.Operation

ANY

Constructor Summary

FieldFormatter(Fields fieldDeclaration, String format)
Constructor FieldJoiner creates a new FieldJoiner instance.

FieldFormatter(String format)
Constructor FieldJoiner creates a new FieldFormatter instance using the default field name "formatted".

Method Summary

String	getFormat() Method getFormat returns the format of this FieldJoiner object.
void	operate(FlowProcess flowProcess, FunctionCall functionCall) Method operate provides the implementation of this Function.

Methods inherited from class cascading.operation.BaseOperation

cleanup, getFieldDeclaration, getNumArgs, getTrace, prepare, printOperationInternal, toString, toStringInternal

Methods inherited from class java.lang.Object

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

Methods inherited from interface cascading.operation.Operation

cleanup, getFieldDeclaration, getNumArgs, prepare

Field Detail

FIELD_NAME

public static final String FIELD_NAME

Field FIELD_NAME

See Also:

Constant Field Values

Constructor Detail

FieldFormatter

public FieldFormatter(String format)

Constructor FieldJoiner creates a new FieldFormatter instance using the default field name "formatted".

Parameters:

format - of type String

FieldFormatter

public FieldFormatter(Fields fieldDeclaration,
                      String format)

Constructor FieldJoiner creates a new FieldJoiner instance.

Parameters:

fieldDeclaration - of type Fields

format - of type String

Method Detail

getFormat

public String getFormat()

Method getFormat returns the format of this FieldJoiner object.

Returns:

the format (type String) of this FieldJoiner object.

operate

public void operate(FlowProcess flowProcess,
                    FunctionCall functionCall)

Description copied from interface: Function

Method operate provides the implementation of this Function.

Specified by:

operate in interface Function

Parameters:

flowProcess - of type FlowProcess

functionCall - of type FunctionCall

See Also:

Function.operate(cascading.flow.FlowProcess,cascading.operation.FunctionCall)