Package net.solarnetwork.node.dao

Interface TransientSettingDao

All Known Implementing Classes:
DefaultTransientSettingDao
public interface TransientSettingDao
API for a transient setting DAO.

This API is designed for simple, small, and fast access to transient runtime data shared across SolarNode. Values added to the maps returned from settings(String) are not persisted across application restarts. The API is arranged as a map of maps, both with string keys, similar to how the SettingDao uses a primary key composed of two strings to group related settings together.

Since:
2.5
Version:
1.0
Author:
matt

  • Method Summary

    Modifier and Type
    Method
    Description
    <V> ConcurrentMap<String,V>
    settings(String key)
    Get the settings map for a given key.

  • Method Details

    • settings

      <V> ConcurrentMap<String,V> settings(String key)
      Get the settings map for a given key.

      This method will always return the same map instance for a given key.

      Type Parameters:
      V - the value type to cast to; note this is only a generic casting operation for convenience and the actual map is expected to actually be declared as ConcurrentMap&ltString, Object&gt;
      Parameters:
      key - the settings key to get
      Returns:
      the settings for the given key, never null