ddf.catalog.federation.impl

Class FifoFederationStrategy

java.lang.Object

ddf.catalog.federation.impl.FifoFederationStrategy

All Implemented Interfaces:

FederationStrategy

Deprecated.

This federation strategy has been left for historical purposes. Refer to the CachingFederationStrategy provided by the catalog-core-standardframework bundle.

@Deprecated
public class FifoFederationStrategy
extends Object
implements FederationStrategy

The Class FifoFederationStrategy represents a First In First Out (FIFO) federation strategy that returns results in the order they are received. This means that the first results received by this strategy are the first results sent back to the client.

Constructor Summary

Constructors

Constructor and Description
FifoFederationStrategy(ExecutorService queryExecutorService, List<PreFederatedQueryPlugin> preQuery, List<PostFederatedQueryPlugin> postQuery) Deprecated. Instantiates a FifoFederationStrategy with the provided ExecutorService.

Method Summary

Modifier and Type	Method and Description
protected QueryResponse	executePostFederationPlugins(QueryResponse queryResponse) Deprecated.
protected void	executeSourceQueries(List<Source> sources, Map<Source,Future<SourceResponse>> futures, QueryRequest modifiedQueryRequest) Deprecated.
QueryResponse	federate(List<Source> sources, QueryRequest queryRequest) Deprecated. Federate the given query to the List of Sources, returning a QueryResponse back to the user that will include the matching Results.
protected Query	getModifiedQuery(Query originalQuery, int numberOfSources, int offset, int pageSize) Deprecated.

Methods inherited from class java.lang.Object

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

Constructor Detail

FifoFederationStrategy

public FifoFederationStrategy(ExecutorService queryExecutorService,
                              List<PreFederatedQueryPlugin> preQuery,
                              List<PostFederatedQueryPlugin> postQuery)

Deprecated.

Instantiates a FifoFederationStrategy with the provided ExecutorService.

Parameters:

queryExecutorService - the ExecutorService for queries

Method Detail

federate

public QueryResponse federate(List<Source> sources,
                              QueryRequest queryRequest)

Deprecated.

Description copied from interface: FederationStrategy

Federate the given query to the List of Sources, returning a QueryResponse back to the user that will include the matching Results.

Specified by:

federate in interface FederationStrategy

Parameters:

sources - the List of Sources to be queried. Cannot be null or empty.

queryRequest - the QueryRequest to execute. Cannot be null.

Returns:

QueryResponse which contains the list of Results.

executePostFederationPlugins

protected QueryResponse executePostFederationPlugins(QueryResponse queryResponse)

Deprecated.

executeSourceQueries

protected void executeSourceQueries(List<Source> sources,
                                    Map<Source,Future<SourceResponse>> futures,
                                    QueryRequest modifiedQueryRequest)

Deprecated.

getModifiedQuery

protected Query getModifiedQuery(Query originalQuery,
                                 int numberOfSources,
                                 int offset,
                                 int pageSize)

Deprecated.