Package de.otto.synapse.messagestore

Class CompositeIndexer

  • All Implemented Interfaces:
    Indexer
    @Beta
public class CompositeIndexer
extends java.lang.Object
implements Indexer
    An Indexer that is a composition of other Indexers.

    • Constructor Summary

      Constructors 
      Constructor Description
      CompositeIndexer​(com.google.common.collect.ImmutableList<Indexer> indexers)
      Creates a CompositeIndex from a list of Indexers.

    • Method Summary

      Modifier and Type Method Description
      java.lang.String calc​(Index index, MessageStoreEntry entry)
      Calculates the Index value from the message-store entry.
      com.google.common.collect.ImmutableSet<Index> getIndexes()
      Returns the indexes supported by this Indexer.
      MessageStoreEntry index​(MessageStoreEntry entry)  
      boolean supports​(Index index)  

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • CompositeIndexer

        public CompositeIndexer​(com.google.common.collect.ImmutableList<Indexer> indexers)
        Creates a CompositeIndex from a list of Indexers.

        If there are multiple Indexers responsible for the same Index, the first Indexer instance will be used and all other instances will not be used to calculate the Index.

        Parameters:
        indexers - the indexers used to build the composite

    • Method Detail

      • getIndexes

        @Nonnull
public com.google.common.collect.ImmutableSet<Index> getIndexes()
        Description copied from interface: Indexer
        Returns the indexes supported by this Indexer.
        Specified by:
        getIndexes in interface Indexer
        Returns:
        Set of Index instances

      • supports

        public boolean supports​(@Nonnull
                        Index index)
        Specified by:
        supports in interface Indexer
        Parameters:
        index - the Index
        Returns:
        true, if the Index is supported, false otherwise.

      • calc

        public java.lang.String calc​(@Nonnull
                             Index index,
                             @Nonnull
                             MessageStoreEntry entry)
        Description copied from interface: Indexer
        Calculates the Index value from the message-store entry.
        Specified by:
        calc in interface Indexer
        Parameters:
        index - the Index
        entry - the MessageStoreEntry
        Returns:
        indexed value