Package net.sf.basedb.core

Class Metadata<C>

java.lang.Object
net.sf.basedb.core.Metadata<C>
public class Metadata<C> extends Object
Utility methods for retreiving metadata about items.
Version:
2.0
Author:
Nicklas
Last modified
$Date: 2020-10-13 14:31:34 +0200 (Tue, 13 Oct 2020) $

  • Field Details

    • annotatableItems

      private static Set<Item> annotatableItems

    • shareableItems

      private static Set<Item> shareableItems

    • removableItems

      private static Set<Item> removableItems

    • ownableItems

      private static Set<Item> ownableItems

    • diskConsumableItems

      private static Set<Item> diskConsumableItems

    • fileStoreEnabledItems

      private static Set<Item> fileStoreEnabledItems

    • subtypableItems

      private static Set<Item> subtypableItems

    • listableItems

      private static Set<Item> listableItems

    • nameableItems

      private static Set<Item> nameableItems

    • isInitialised

      private static boolean isInitialised

    • instances

      private static final Map<String,Metadata<?>> instances
      Cache of Metadata instances. Only one instance for each type of item exists.

    • classMetadata

      private final ClassMetadata classMetadata

    • entityName

      private final String entityName

    • clazz

      private final Class<C> clazz

    • cachedPaths

      private final Map<String,Metadata.PropertyPath> cachedPaths

  • Constructor Details

  • Method Details

    • init

      static void init()

    • unload

      static void unload()
      Unload all settings.

    • getImplementingItems

      private static Set<Item> getImplementingItems(Class<?> clazz)
      Get all Item:s implementing/extinding the specified interface/class.

    • getAnnotatableItems

      public static Set<Item> getAnnotatableItems()
      Get a set containing all Annotatable item types. The set cannot be modified.

    • getShareableItems

      public static Set<Item> getShareableItems()
      Get a set containing all Shareable item types. The set cannot be modified.

    • getRemovableItems

      public static Set<Item> getRemovableItems()
      Get a set containing all Removable item types. The set cannot be modified.

    • getOwnableItems

      public static Set<Item> getOwnableItems()
      Get a set containing all Ownable item types. The set cannot be modified.

    • getDiskConsumableItems

      public static Set<Item> getDiskConsumableItems()
      Get a set containing all DiskConsumable item types. The set cannot be modified.

    • getFileStoreEnabledItems

      public static Set<Item> getFileStoreEnabledItems()
      Get a set containing all FileStoreEnabled item types. The set cannot be modified.

    • getSubtypableItems

      public static Set<Item> getSubtypableItems()
      Get a set containing all Subtypable item types. The set cannot be modified.
      Since:
      3.0

    • getListableItems

      public static Set<Item> getListableItems()
      Get a set containing all Listable item types. The set cannot be modified.
      Since:
      3.5

    • getNameableItems

      public static Set<Item> getNameableItems()
      Get a set containing all Nameable item types. The set cannot be modified.
      Since:
      3.17

    • getInstance

      public static <I> Metadata<I> getInstance(Class<I> itemClass) throws BaseException
      Get the metadata instance for the specified type of item.
      Parameters:
      itemClass - The class of the item
      Returns:
      a new instance of this class.
      Throws:
      BaseException - If a new instance could not be created.

    • getInstance

      public static <I> Metadata<I> getInstance(Class<I> clazz, String entityName) throws BaseException
      Get the metadata instance for the item with the specified entity name. Use this method where one class is mapped to several entities, for example RawData.
      Parameters:
      clazz - The class of the item, should be either a BasicItem or BasicData class
      entityName - The entity name for the item, normally this is clazz.getName() but some entities, for example RawData, have multiple names
      Returns:
      a new instance of this class
      Throws:
      BaseException - If a new instance could not be created.

    • getPropertyPath

      public <V> Metadata.PropertyPath<C,V> getPropertyPath(String path, boolean ignoreCase)
      Get a property path that can be used to retrieve a value from an item instead of using the regular get methods. The following method calls are equivalent: 
      // Using getter method
String name = item.getName();

// Using PropertyPath
PropertyPath path = metadata.getPropertyPath("name");
String name = (String)path.getValue(dc, item);
      You can even use dot notation to navigate to associated items: 
      // Using getter methods
String quota = item.getOwner().getQuota().getName();

// Using PropertyPath
PropertyPath path = metadata.getPropertyPath("owner.quota.name");
String quota = (String)path.getValue(dc, item);
      Type Parameters:
      V - The class of the returned values
      Parameters:
      path - The name of the property to get. Null is not allowed. Use . or # as a separator between property and association names
      Returns:
      A property path object
      Throws:
      NullPointerException - If the path is null
      InvalidDataException - If the path is not a valid path
      Since:
      2.15

    • getIndex

      private int getIndex(String s, String[] list, Comparator<String> check)

    • toString

      public String toString()
      Overrides:
      toString in class Object