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ASF GitHub Bot commented on SOLR-8323: -------------------------------------- Github user dragonsinth commented on a diff in the pull request: https://github.com/apache/lucene-solr/pull/32#discussion_r61504017 --- Diff: solr/solrj/src/java/org/apache/solr/common/cloud/CollectionStatePredicate.java --- @@ -0,0 +1,41 @@ +package org.apache.solr.common.cloud; + +/* + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed with + * this work for additional information regarding copyright ownership. + * The ASF licenses this file to You under the Apache License, Version 2.0 + * (the "License"); you may not use this file except in compliance with + * the License. You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +import java.util.Set; +import java.util.concurrent.TimeUnit; + +/** + * Interface to determine if a collection state matches a required state + * + * @see ZkStateReader#waitForState(String, long, TimeUnit, CollectionStatePredicate) + */ +public interface CollectionStatePredicate { + + /** + * Check the collection state matches a required state + * + * The collectionState parameter may be null if the collection does not exist + * or has been deleted --- End diff -- This wants to be `@param collectionState the current collection state, or null if the collection doesn't exist or has been deleted` > Add CollectionWatcher API to ZkStateReader > ------------------------------------------ > > Key: SOLR-8323 > URL: https://issues.apache.org/jira/browse/SOLR-8323 > Project: Solr > Issue Type: Improvement > Affects Versions: master > Reporter: Alan Woodward > Assignee: Alan Woodward > Attachments: SOLR-8323.patch, SOLR-8323.patch, SOLR-8323.patch, > SOLR-8323.patch > > > An API to watch for changes to collection state would be a generally useful > thing, both internally and for client use. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@lucene.apache.org For additional commands, e-mail: dev-h...@lucene.apache.org