com.pervasive.datarush.matching.functions

Class StringEncodings

java.lang.Object

com.pervasive.datarush.matching.functions.StringEncodings

public class StringEncodings
extends Object

A collection of functions for phonetic encoding of string values. Phonetic encoding represents words by how they are pronounced. This can be useful for comparing strings such as names, as variant spellings are encoded into the same form.

All functions in this set will return a null value if the input string is null valued.

Constructor Summary

Constructors

Constructor and Description
StringEncodings()

Method Summary

Modifier and Type	Method and Description
static ScalarValuedFunction	caverphone(ScalarValuedFunction value) Builds a function phonetically encoding the string value to which the specified expression evaluates using the Caverphone algorithm.
static ScalarValuedFunction	caverphone(String field) Builds a function phonetically encoding the string value in the specified field using the Caverphone algorithm.
static ScalarValuedFunction	doubleMetaphone(ScalarValuedFunction value) Builds a function phonetically encoding the string value to which the specified expression evaluates using the Double Metaphone algorithm.
static ScalarValuedFunction	doubleMetaphone(String field) Builds a function phonetically encoding the string value in the specified field using the Double Metaphone algorithm.
static ScalarValuedFunction	metaphone(ScalarValuedFunction value) Builds a function phonetically encoding the string value to which the specified expression evaluates using the Metaphone algorithm.
static ScalarValuedFunction	metaphone(String field) Builds a function phonetically encoding the string value in the specified field using the Metaphone algorithm.
static ScalarValuedFunction	refinedSoundex(ScalarValuedFunction value) Builds a function phonetically encoding the string value to which the specified expression evaluates using the refined Soundex algorithm.
static ScalarValuedFunction	refinedSoundex(String field) Builds a function phonetically encoding the string value in the specified field using the refined Soundex algorithm.
static ScalarValuedFunction	soundex(ScalarValuedFunction value) Builds a function phonetically encoding the string value to which the specified expression evaluates using the Soundex algorithm.
static ScalarValuedFunction	soundex(String field) Builds a function phonetically encoding the string value in the specified field using the Soundex algorithm.

Methods inherited from class java.lang.Object

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

Constructor Detail

StringEncodings

public StringEncodings()

Method Detail

caverphone

public static ScalarValuedFunction caverphone(String field)

Builds a function phonetically encoding the string value in the specified field using the Caverphone algorithm.

Parameters:

field - the record field to encode

Returns:

the specified function

caverphone

public static ScalarValuedFunction caverphone(ScalarValuedFunction value)

Builds a function phonetically encoding the string value to which the specified expression evaluates using the Caverphone algorithm.

Parameters:

value - a string expression to encode

Returns:

the specified function

metaphone

public static ScalarValuedFunction metaphone(String field)

Builds a function phonetically encoding the string value in the specified field using the Metaphone algorithm.

Parameters:

field - the record field to encode

Returns:

the specified function

metaphone

public static ScalarValuedFunction metaphone(ScalarValuedFunction value)

Builds a function phonetically encoding the string value to which the specified expression evaluates using the Metaphone algorithm.

Parameters:

value - a string expression to encode

Returns:

the specified function

doubleMetaphone

public static ScalarValuedFunction doubleMetaphone(String field)

Builds a function phonetically encoding the string value in the specified field using the Double Metaphone algorithm.

Parameters:

field - the record field to encode

Returns:

the specified function

doubleMetaphone

public static ScalarValuedFunction doubleMetaphone(ScalarValuedFunction value)

Builds a function phonetically encoding the string value to which the specified expression evaluates using the Double Metaphone algorithm.

Parameters:

value - a string expression to encode

Returns:

the specified function

soundex

public static ScalarValuedFunction soundex(String field)

Builds a function phonetically encoding the string value in the specified field using the Soundex algorithm.

Parameters:

field - the record field to encode

Returns:

the specified function

soundex

public static ScalarValuedFunction soundex(ScalarValuedFunction value)

Builds a function phonetically encoding the string value to which the specified expression evaluates using the Soundex algorithm.

Parameters:

value - a string expression to encode

Returns:

the specified function

refinedSoundex

public static ScalarValuedFunction refinedSoundex(String field)

Builds a function phonetically encoding the string value in the specified field using the refined Soundex algorithm.

Parameters:

field - the record field to encode

Returns:

the specified function

refinedSoundex

public static ScalarValuedFunction refinedSoundex(ScalarValuedFunction value)

Builds a function phonetically encoding the string value to which the specified expression evaluates using the refined Soundex algorithm.

Parameters:

value - a string expression to encode

Returns:

the specified function