Module org.apache.lucene.core

Package org.apache.lucene.util.fst

Class PositiveIntOutputs

java.lang.Object

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

org.apache.lucene.util.fst.PositiveIntOutputs

public final class PositiveIntOutputs
extends Outputs<Long>

An FST Outputs implementation where each output is a non-negative long value.

Field Summary

Fields

Modifier and Type	Field	Description
private static final Long	NO_OUTPUT
private static final PositiveIntOutputs	singleton

Constructor Summary

Constructors

Modifier	Constructor	Description
private	PositiveIntOutputs()

Method Summary

Modifier and Type	Method	Description
Long	add(Long prefix, Long output)	Eg add("foo", "bar") -> "foobar"
Long	common(Long output1, Long output2)	Eg common("foobar", "food") -> "foo"
Long	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 PositiveIntOutputs	getSingleton()
String	outputToString(Long output)
long	ramBytesUsed(Long output)	Return memory usage for the provided output.
Long	read(DataInput in)	Decode an output value previously written with Outputs.write(Object, DataOutput).
Long	subtract(Long output, Long inc)	Eg subtract("foobar", "foo") -> "bar"
String	toString()
private boolean	valid(Long o)
void	write(Long output, DataOutput out)	Encode an output value into a DataOutput.

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

merge, readFinalOutput, skipFinalOutput, skipOutput, writeFinalOutput

Methods inherited from class java.lang.Object

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

Field Details

NO_OUTPUT

private static final Long NO_OUTPUT

singleton

private static final PositiveIntOutputs singleton

Constructor Details

PositiveIntOutputs

private PositiveIntOutputs()

Method Details

getSingleton

public static PositiveIntOutputs getSingleton()

common

public Long common(Long output1,
 Long output2)

Description copied from class: Outputs

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

Specified by:

common in class Outputs<Long>

subtract

public Long subtract(Long output,
 Long inc)

Description copied from class: Outputs

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

Specified by:

subtract in class Outputs<Long>

add

public Long add(Long prefix,
 Long output)

Description copied from class: Outputs

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

Specified by:

add in class Outputs<Long>

write

public void write(Long output,
 DataOutput out)
           throws IOException

Description copied from class: Outputs

Encode an output value into a DataOutput.

Specified by:

write in class Outputs<Long>

Throws:

IOException

read

public Long read(DataInput in)
          throws IOException

Description copied from class: Outputs

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

Specified by:

read in class Outputs<Long>

Throws:

IOException

valid

private boolean valid(Long o)

getNoOutput

public Long 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<Long>

outputToString

public String outputToString(Long output)

Specified by:

outputToString in class Outputs<Long>

toString

public String toString()

Overrides:

toString in class Object

ramBytesUsed

public long ramBytesUsed(Long output)

Description copied from class: Outputs

Return memory usage for the provided output.

Specified by:

ramBytesUsed in class Outputs<Long>

See Also:

• Accountable