org.apache.solr.common.cloud

## Interface CollectionStatePredicate

-     public interface CollectionStatePredicate

  Interface to determine if a collection state matches a required state
  See Also:
    `ZkStateReader.waitForState(String, long, TimeUnit, CollectionStatePredicate)`

- - ### Method Summary

    All Methods Instance Methods Abstract Methods
    Modifier and Type | Method and Description
    --- | ---
    `boolean` | `matches(Set<String> liveNodes, DocCollection collectionState)` Check the collection state matches a required state Note that both liveNodes and collectionState should be consulted to determine the overall state.

- - ### Method Detail

    - #### matches

          boolean matches(Set<String> liveNodes,
                          DocCollection collectionState)

      Check the collection state matches a required state Note that both liveNodes and collectionState should be consulted to determine the overall state.
      Parameters:
        `liveNodes` - the current set of live nodes
        `collectionState` - the latest collection state, or null if the collection does not exist

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