Package de.otto.synapse.messagestore

Class CalculatedValueIndexer

java.lang.Object
de.otto.synapse.messagestore.CalculatedValueIndexer
All Implemented Interfaces:
Indexer
@Beta
public class CalculatedValueIndexer
extends java.lang.Object
implements Indexer
An Indexer that is using a Function to calculate the value for a single Index.

  • Constructor Summary

    Constructors
    Constructor Description
    CalculatedValueIndexer​(Index index, java.util.function.Function<MessageStoreEntry,​java.lang.String> calculator)
    Creates a CalculatedValueIndexer.

  • 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 Details

    • CalculatedValueIndexer

      public CalculatedValueIndexer​(@Nonnull Index index, @Nonnull java.util.function.Function<MessageStoreEntry,​java.lang.String> calculator)
      Creates a CalculatedValueIndexer.
      Parameters:
      index - the Index that is calculated by the calculator function
      calculator - the function that is used to calculate the value for the index

  • Method Details

    • 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

    • index

      @Nonnull public MessageStoreEntry index​(@Nonnull MessageStoreEntry entry)
      Specified by:
      index in interface Indexer