morfologik.stemming

Interface ISequenceEncoder

All Known Implementing Classes:

NoEncoder, TrimInfixAndSuffixEncoder, TrimPrefixAndSuffixEncoder, TrimSuffixEncoder

public interface ISequenceEncoder

The logic of encoding one sequence of bytes relative to another sequence of bytes. The "base" form and the "derived" form are typically the stem of a word and the inflected form of a word.

Derived form encoding helps in making the data for the automaton smaller and more repetitive (which results in higher compression rates).

See example implementation for details.

Method Summary

Modifier and Type	Method and Description
java.nio.ByteBuffer	decode(java.nio.ByteBuffer reuse, java.nio.ByteBuffer source, java.nio.ByteBuffer encoded) Decodes encoded relative to source, optionally reusing the provided ByteBuffer.
java.nio.ByteBuffer	encode(java.nio.ByteBuffer reuse, java.nio.ByteBuffer source, java.nio.ByteBuffer target) Encodes target relative to source, optionally reusing the provided ByteBuffer.
int	prefixBytes() Deprecated.

Method Detail

encode

java.nio.ByteBuffer encode(java.nio.ByteBuffer reuse,
                           java.nio.ByteBuffer source,
                           java.nio.ByteBuffer target)

Encodes target relative to source, optionally reusing the provided ByteBuffer.

Parameters:

reuse - Reuses the provided ByteBuffer or allocates a new one if there is not enough remaining space.

source - The source byte sequence.

target - The target byte sequence to encode relative to source

Returns:

Returns the ByteBuffer with encoded target.

decode

java.nio.ByteBuffer decode(java.nio.ByteBuffer reuse,
                           java.nio.ByteBuffer source,
                           java.nio.ByteBuffer encoded)

Decodes encoded relative to source, optionally reusing the provided ByteBuffer.

Parameters:

reuse - Reuses the provided ByteBuffer or allocates a new one if there is not enough remaining space.

source - The source byte sequence.

encoded - The previously encoded byte sequence.

Returns:

Returns the ByteBuffer with decoded target.

prefixBytes

@Deprecated
int prefixBytes()

Deprecated.

The number of encoded form's prefix bytes that should be ignored (needed for separator lookup). An ugly workaround for GH-85, should be fixed by prior knowledge of whether the dictionary contains tags; then we can scan for separator right-to-left.

See Also:

"https://github.com/morfologik/morfologik-stemming/issues/85"