org.carrot2.source

Enum MultipageSearchEngine.SearchMode

java.lang.Object

java.lang.Enum<MultipageSearchEngine.SearchMode>

org.carrot2.source.MultipageSearchEngine.SearchMode

All Implemented Interfaces:

Serializable, Comparable<MultipageSearchEngine.SearchMode>

Enclosing class:

MultipageSearchEngine

public static enum MultipageSearchEngine.SearchMode
extends Enum<MultipageSearchEngine.SearchMode>

Search mode for data source components that implement parallel request to some search service.

Enum Constant Summary

Enum Constants

Enum Constant and Description
CONSERVATIVE In this mode, an initial search request is performed to estimate the number of documents available on the server.
SPECULATIVE In this mode, the number of requested documents is divided by the maximum number of documents the search engine can return in a single request.

Method Summary

Methods

Modifier and Type	Method and Description
static MultipageSearchEngine.SearchMode	valueOf(String name) Returns the enum constant of this type with the specified name.
static MultipageSearchEngine.SearchMode[]	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, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

CONSERVATIVE

public static final MultipageSearchEngine.SearchMode CONSERVATIVE

In this mode, an initial search request is performed to estimate the number of documents available on the server. Then the requested number of documents is adjusted according to the number of documents available to minimize the number of requests.

SPECULATIVE

public static final MultipageSearchEngine.SearchMode SPECULATIVE

In this mode, the number of requested documents is divided by the maximum number of documents the search engine can return in a single request. The result is the number of concurrent requests launched to the search service.

Note that speculative threads cause larger load on the search service and will exhaust your request pool quicker (if it is limited).

Method Detail

values

public static MultipageSearchEngine.SearchMode[] 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 (MultipageSearchEngine.SearchMode c : MultipageSearchEngine.SearchMode.values())
    System.out.println(c);

Returns:

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

valueOf

public static MultipageSearchEngine.SearchMode 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