com.datastax.dse.graph.api.predicates

Class Search

java.lang.Object

com.datastax.dse.graph.api.predicates.Search

public class Search
extends Object

Constructor Summary

Constructors

Constructor and Description
Search()

Method Summary

Modifier and Type	Method and Description
static P<Object>	fuzzy(String query, int distance) Supports fuzzy searches based on the Damerau-Levenshtein Distance, or Edit Distance algorithm (case sensitive).
static P<Object>	phrase(String query, int distance) Supports finding words which are a within a specific distance away (case insensitive).
static P<Object>	prefix(String value) Search for a specific prefix at the beginning of the text property targeted (case sensitive).
static P<Object>	regex(String value) Search for this regular expression inside the text property targeted (case sensitive).
static P<Object>	token(String value) Search any instance of a certain token within the text property targeted (case insensitive).
static P<Object>	tokenFuzzy(String query, int distance) Supports fuzzy searches based on the Damerau-Levenshtein Distance, or Edit Distance algorithm after having tokenized the data stored (case insensitive).
static P<Object>	tokenPrefix(String value) Search any instance of a certain token prefix within the text property targeted (case insensitive).
static P<Object>	tokenRegex(String value) Search any instance of the provided regular expression for the targeted property (case insensitive).

Methods inherited from class java.lang.Object

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

Constructor Detail

Search

public Search()

Method Detail

token

public static P<Object> token(String value)

Search any instance of a certain token within the text property targeted (case insensitive).

Parameters:

value - the token to look for.

Returns:

a predicate to apply in a GraphTraversal.

tokenPrefix

public static P<Object> tokenPrefix(String value)

Search any instance of a certain token prefix within the text property targeted (case insensitive).

Parameters:

value - the token to look for.

Returns:

a predicate to apply in a GraphTraversal.

tokenRegex

public static P<Object> tokenRegex(String value)

Search any instance of the provided regular expression for the targeted property (case insensitive).

Parameters:

value - the token to look for.

Returns:

a predicate to apply in a GraphTraversal.

prefix

public static P<Object> prefix(String value)

Search for a specific prefix at the beginning of the text property targeted (case sensitive).

Parameters:

value - the value to look for.

Returns:

a predicate to apply in a GraphTraversal.

regex

public static P<Object> regex(String value)

Search for this regular expression inside the text property targeted (case sensitive).

Parameters:

value - the value to look for.

Returns:

a predicate to apply in a GraphTraversal.

phrase

public static P<Object> phrase(String query,
                               int distance)

Supports finding words which are a within a specific distance away (case insensitive).

Example: the search expression is phrase("Hello world", 2)

• the inserted value "Hello world" is found
• the inserted value "Hello wild world" is found
• the inserted value "Hello big wild world" is found
• the inserted value "Hello the big wild world" is not found
• the inserted value "Goodbye world" is not found.

Parameters:

query - the string to look for in the value

distance - the number of terms allowed between two correct terms to find a value.

Returns:

a predicate to apply in a GraphTraversal.

fuzzy

public static P<Object> fuzzy(String query,
                              int distance)

Supports fuzzy searches based on the Damerau-Levenshtein Distance, or Edit Distance algorithm (case sensitive).

Example: the search expression is fuzzy("david", 1)

• the inserted value "david" is found
• the inserted value "dawid" is found
• the inserted value "davids" is found
• the inserted value "dewid" is not found

Parameters:

query - the string to look for in the value

distance - the number of "uncertainties" allowed for the Leveinshtein algorithm.

Returns:

a predicate to apply in a GraphTraversal.

tokenFuzzy

public static P<Object> tokenFuzzy(String query,
                                   int distance)

Supports fuzzy searches based on the Damerau-Levenshtein Distance, or Edit Distance algorithm after having tokenized the data stored (case insensitive).

Example: the search expression is tokenFuzzy("david", 1)

• the inserted value "david" is found
• the inserted value "dawid" is found
• the inserted value "hello-dawid" is found
• the inserted value "dewid" is not found

Parameters:

query - the string to look for in the value

distance - the number of "uncertainties" allowed for the Leveinshtein algorithm.

Returns:

a predicate to apply in a GraphTraversal.