Package org.apache.lucene.util.fst

Class IntSequenceOutputs

java.lang.Object

org.apache.lucene.util.fst.Outputs<IntsRef>

org.apache.lucene.util.fst.IntSequenceOutputs

public final class IntSequenceOutputs
extends Outputs<IntsRef>

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

Field Summary

Fields

Modifier and Type	Field	Description
private static long	BASE_NUM_BYTES
private static IntsRef	NO_OUTPUT
private static IntSequenceOutputs	singleton

Constructor Summary

Constructors

Modifier	Constructor	Description
private	IntSequenceOutputs()

Method Summary

Modifier and Type	Method	Description
IntsRef	add(IntsRef prefix, IntsRef output)	Eg add("foo", "bar") -> "foobar"
IntsRef	common(IntsRef output1, IntsRef output2)	Eg common("foobar", "food") -> "foo"
IntsRef	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 IntSequenceOutputs	getSingleton()
java.lang.String	outputToString(IntsRef output)
long	ramBytesUsed(IntsRef output)	Return memory usage for the provided output.
IntsRef	read(DataInput in)	Decode an output value previously written with Outputs.write(Object, DataOutput).
void	skipOutput(DataInput in)	Skip the output; defaults to just calling Outputs.read(org.apache.lucene.store.DataInput) and discarding the result.
IntsRef	subtract(IntsRef output, IntsRef inc)	Eg subtract("foobar", "foo") -> "bar"
java.lang.String	toString()
void	write(IntsRef prefix, DataOutput out)	Encode an output value into a DataOutput.

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

merge, readFinalOutput, skipFinalOutput, writeFinalOutput

Methods inherited from class java.lang.Object

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

Field Detail

NO_OUTPUT

private static final IntsRef NO_OUTPUT

singleton

private static final IntSequenceOutputs singleton

BASE_NUM_BYTES

private static final long BASE_NUM_BYTES

Constructor Detail

IntSequenceOutputs

private IntSequenceOutputs()

Method Detail

getSingleton

public static IntSequenceOutputs getSingleton()

common

public IntsRef common(IntsRef output1,
                      IntsRef output2)

Description copied from class: Outputs

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

Specified by:

common in class Outputs<IntsRef>

subtract

public IntsRef subtract(IntsRef output,
                        IntsRef inc)

Description copied from class: Outputs

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

Specified by:

subtract in class Outputs<IntsRef>

add

public IntsRef add(IntsRef prefix,
                   IntsRef output)

Description copied from class: Outputs

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

Specified by:

add in class Outputs<IntsRef>

write

public void write(IntsRef prefix,
                  DataOutput out)
           throws java.io.IOException

Description copied from class: Outputs

Encode an output value into a DataOutput.

Specified by:

write in class Outputs<IntsRef>

Throws:

java.io.IOException

read

public IntsRef read(DataInput in)
             throws java.io.IOException

Description copied from class: Outputs

Decode an output value previously written with Outputs.write(Object, DataOutput).

Specified by:

read in class Outputs<IntsRef>

Throws:

java.io.IOException

skipOutput

public void skipOutput(DataInput in)
                throws java.io.IOException

Description copied from class: Outputs

Skip the output; defaults to just calling Outputs.read(org.apache.lucene.store.DataInput) and discarding the result.

Overrides:

skipOutput in class Outputs<IntsRef>

Throws:

java.io.IOException

getNoOutput

public IntsRef 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<IntsRef>

outputToString

public java.lang.String outputToString(IntsRef output)

Specified by:

outputToString in class Outputs<IntsRef>

ramBytesUsed

public long ramBytesUsed(IntsRef output)

Description copied from class: Outputs

Return memory usage for the provided output.

Specified by:

ramBytesUsed in class Outputs<IntsRef>

See Also:

Accountable

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object