Interface NodeHashMap

All Known Implementing Classes:
NodeHashMapImpl

public interface NodeHashMap
The interface defined to manage the hash based on the entries in the nodes map.
  • Method Details

    • put

      DataNode put(String path, DataNode node)
      Add the node into the map and update the digest with the new node.
      Parameters:
      path - the path of the node
      node - the actual node associated with this path
    • putWithoutDigest

      DataNode putWithoutDigest(String path, DataNode node)
      Add the node into the map without update the digest.
      Parameters:
      path - the path of the node
      node - the actual node associated with this path
    • get

      DataNode get(String path)
      Return the data node associated with the path.
      Parameters:
      path - the path to read from
    • remove

      DataNode remove(String path)
      Remove the path from the internal nodes map.
      Parameters:
      path - the path to remove
      Returns:
      the node being removed
    • entrySet

      Return all the entries inside this map.
    • clear

      void clear()
      Clear all the items stored inside this map.
    • size

      int size()
      Return the size of the nodes stored in this map.
    • preChange

      void preChange(String path, DataNode node)
      Called before we made the change on the node, which will clear the digest associated with it.
      Parameters:
      path - the path being changed
      node - the node associated with the path
    • postChange

      void postChange(String path, DataNode node)
      Called after making the changes on the node, which will update the digest.
      Parameters:
      path - the path being changed
      node - the node associated with the path
    • getDigest

      long getDigest()
      Return the digest value.