cascading.tap
Class MultiTap

java.lang.Object
  cascading.tap.Tap
      cascading.tap.SourceTap
          cascading.tap.MultiSourceTap
              cascading.tap.MultiTap

All Implemented Interfaces:

FlowElement, CompositeTap, Serializable

Deprecated.

@Deprecated
public class MultiTap
extends MultiSourceTap

This class has been deprecated in favor of MultiSourceTap.

Class MultiTap is used to tie multiple Tap instances into a single resource. Effectively this will allow multiple files to be concatenated into the requesting pipe assembly, if they all share the same Scheme instance.

Note that order is not maintained by virtue of the underlying model. If order is necessary, use a unique sequence key to span the resources, like a line number.

Note that if multiple input files have the same Scheme (like TextLine), they may not contain the same semi-structure internally. For example, one file might be an Apache log file, and anoter might be a Log4J log file. If each one should be parsed differently, then they must be handled by different pipe assembly branches.

See Also:

Serialized Form

Field Summary

Fields inherited from class cascading.tap.MultiSourceTap

taps

Constructor Summary

protected	MultiTap(Scheme scheme) Deprecated.
	MultiTap(Tap... taps) Deprecated.

Method Summary

Methods inherited from class cascading.tap.MultiSourceTap

equals, getChildTaps, getPath, getPathModified, getScheme, getTaps, hashCode, isReplace, openForRead, pathExists, sourceInit, toString

Methods inherited from class cascading.tap.SourceTap

deletePath, getSinkFields, isSink, makeDirs, openForWrite, sink

Methods inherited from class cascading.tap.Tap

flowInit, getIdentifier, getQualifiedPath, getSinkMode, getSourceFields, isAppend, isEquivalentTo, isKeep, isSource, isUpdate, isWriteDirect, outgoingScopeFor, resolveFields, resolveIncomingOperationFields, setScheme, setWriteDirect, sinkInit, source, taps

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

MultiTap

protected MultiTap(Scheme scheme)

Deprecated.

MultiTap

public MultiTap(Tap... taps)

Deprecated.