org.apache.lucene.util.fst
Class CharSequenceOutputs

java.lang.Object
  org.apache.lucene.util.fst.Outputs<CharsRef>
      org.apache.lucene.util.fst.CharSequenceOutputs

public final class CharSequenceOutputs
extends Outputs<CharsRef>

An FST Outputs implementation where each output is a sequence of characters.

WARNING: This API is experimental and might change in incompatible ways in the next release.

Method Summary

CharsRef	add(CharsRef prefix, CharsRef output) Eg add("foo", "bar") -> "foobar"
CharsRef	common(CharsRef output1, CharsRef output2) Eg common("foo", "foobar") -> "foo"
CharsRef	getNoOutput() NOTE: this output is compared with == so you must ensure that all methods return the single object if it's really no output
static CharSequenceOutputs	getSingleton()
String	outputToString(CharsRef output)
CharsRef	read(DataInput in)
CharsRef	subtract(CharsRef output, CharsRef inc) Eg subtract("foobar", "foo") -> "bar"
void	write(CharsRef prefix, DataOutput out)

Methods inherited from class org.apache.lucene.util.fst.Outputs

merge

Methods inherited from class java.lang.Object

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

Method Detail

getSingleton

public static CharSequenceOutputs getSingleton()

common

public CharsRef common(CharsRef output1,
                       CharsRef output2)

Description copied from class: Outputs

Eg common("foo", "foobar") -> "foo"

Specified by:

common in class Outputs<CharsRef>

subtract

public CharsRef subtract(CharsRef output,
                         CharsRef inc)

Description copied from class: Outputs

Eg subtract("foobar", "foo") -> "bar"

Specified by:

subtract in class Outputs<CharsRef>

add

public CharsRef add(CharsRef prefix,
                    CharsRef output)

Description copied from class: Outputs

Eg add("foo", "bar") -> "foobar"

Specified by:

add in class Outputs<CharsRef>

write

public void write(CharsRef prefix,
                  DataOutput out)
           throws IOException

Specified by:

write in class Outputs<CharsRef>

Throws:

IOException

read

public CharsRef read(DataInput in)
              throws IOException

Specified by:

read in class Outputs<CharsRef>

Throws:

IOException

getNoOutput

public CharsRef getNoOutput()

Description copied from class: Outputs

NOTE: this output is compared with == so you must ensure that all methods return the single object if it's really no output

Specified by:

getNoOutput in class Outputs<CharsRef>

outputToString

public String outputToString(CharsRef output)

Specified by:

outputToString in class Outputs<CharsRef>