com.pervasive.datarush.matching

Enum ComparisonType

java.lang.Object

java.lang.Enum<ComparisonType>

com.pervasive.datarush.matching.ComparisonType

All Implemented Interfaces:

Serializable, Comparable<ComparisonType>

public enum ComparisonType
extends Enum<ComparisonType>

The type of field comparisons supported by the matching operators.

Enum Constant Summary

Enum Constants

Enum Constant and Description
CONTAINS Simple substring comparison
DAMERAU_LEVENSHTEIN String comparison using the Damerau-Levenshtein algorithm
EXACT_MATCH Simple string comparision
JARO String comparison using the Jaro algorithm
JARO_WINKLER String comparison using the Jaro-Winkler algorithm
LEVENSHTEIN String comparison using Levenshtein distance
POSITIONAL_QGRAM String comparison using position Q-grams
QGRAM String comparison using Q-grams
SHORTHAND String comparision based on shorthand

Method Summary

Modifier and Type	Method and Description
String	getAbbreviation() Gets the abbreviation used for the comparison type.
String	getDisplayName() Gets a user-friendly name of the comparison type.
PropertyDefinition[]	getPropertyDefinitions() Gets the definitions for the comparison's required properties.
boolean	hasProperties() Indicates whether the comparison requires additional properties.
String	toString()
static ComparisonType	valueOf(String name) Returns the enum constant of this type with the specified name.
static ComparisonType[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

CONTAINS

public static final ComparisonType CONTAINS

Simple substring comparison

DAMERAU_LEVENSHTEIN

public static final ComparisonType DAMERAU_LEVENSHTEIN

String comparison using the Damerau-Levenshtein algorithm

EXACT_MATCH

public static final ComparisonType EXACT_MATCH

Simple string comparision

JARO

public static final ComparisonType JARO

String comparison using the Jaro algorithm

JARO_WINKLER

public static final ComparisonType JARO_WINKLER

String comparison using the Jaro-Winkler algorithm

LEVENSHTEIN

public static final ComparisonType LEVENSHTEIN

String comparison using Levenshtein distance

QGRAM

public static final ComparisonType QGRAM

String comparison using Q-grams

POSITIONAL_QGRAM

public static final ComparisonType POSITIONAL_QGRAM

String comparison using position Q-grams

SHORTHAND

public static final ComparisonType SHORTHAND

String comparision based on shorthand

Method Detail

values

public static ComparisonType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ComparisonType c : ComparisonType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ComparisonType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

hasProperties

public boolean hasProperties()

Indicates whether the comparison requires additional properties.

Returns:

true if additional properties are required, false otherwise

getDisplayName

public String getDisplayName()

Gets a user-friendly name of the comparison type.

Returns:

the name of the comparison for display purposes

getAbbreviation

public String getAbbreviation()

Gets the abbreviation used for the comparison type.

Returns:

the short-form identifier for the comparison

getPropertyDefinitions

public PropertyDefinition[] getPropertyDefinitions()

Gets the definitions for the comparison's required properties.

Returns:

the property definitions. If there are no required properties, null.

toString

public String toString()

Overrides:

toString in class Enum<ComparisonType>