Class CFSA2Serializer

java.lang.Object

morfologik.fsa.builders.CFSA2Serializer

All Implemented Interfaces:

FSASerializer

public final class CFSA2Serializer
extends Object
implements FSASerializer

Serializes in-memory FSA graphs to CFSA2.

It is possible to serialize the automaton with numbers required for perfect hashing. See withNumbers() method.

See Also:

• CFSA2

Constructor Summary

Constructors

Constructor	Description
CFSA2Serializer()

Method Summary

Modifier and Type	Method	Description
Set<FSAFlags>	getFlags()	Return supported flags.
<T extends OutputStream> T	serialize(FSA fsa, T os)	Serializes any FSA to CFSA2 stream.
CFSA2Serializer	withAnnotationSeparator(byte annotationSeparator)	Sets the annotation separator (only if FSASerializer.getFlags() returns FSAFlags.SEPARATORS).
CFSA2Serializer	withFiller(byte filler)	Sets the filler separator (only if FSASerializer.getFlags() returns FSAFlags.SEPARATORS).
CFSA2Serializer	withNumbers()	Serialize the automaton with the number of right-language sequences in each node.

Methods inherited from class Object

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

Constructor Details

CFSA2Serializer

public CFSA2Serializer()

Method Details

withNumbers

public CFSA2Serializer withNumbers()

Serialize the automaton with the number of right-language sequences in each node. This is required to implement perfect hashing. The numbering also preserves the order of input sequences.

Specified by:

withNumbers in interface FSASerializer

Returns:

Returns the same object for easier call chaining.

serialize

public <T extends OutputStream> T serialize(FSA fsa,
 T os)
                                     throws IOException

Serializes any FSA to CFSA2 stream.

Specified by:

serialize in interface FSASerializer

Type Parameters:

T - A subclass of OutputStream, returned for chaining.

Parameters:

fsa - The automaton to serialize.

os - The output stream to serialize to.

Returns:

Returns os for chaining.

Throws:

IOException - Rethrown if an I/O error occurs.

See Also:

• withNumbers()

getFlags

public Set<FSAFlags> getFlags()

Return supported flags.

Specified by:

getFlags in interface FSASerializer

Returns:

Returns the set of flags supported by the serializer (and the output automaton).

withFiller

public CFSA2Serializer withFiller(byte filler)

Description copied from interface: FSASerializer

Sets the filler separator (only if FSASerializer.getFlags() returns FSAFlags.SEPARATORS).

Specified by:

withFiller in interface FSASerializer

Parameters:

filler - The filler separator byte.

Returns:

Returns this for call chaining.

withAnnotationSeparator

public CFSA2Serializer withAnnotationSeparator(byte annotationSeparator)

Description copied from interface: FSASerializer

Sets the annotation separator (only if FSASerializer.getFlags() returns FSAFlags.SEPARATORS).

Specified by:

withAnnotationSeparator in interface FSASerializer

Parameters:

annotationSeparator - The filler separator byte.

Returns:

Returns this for call chaining.