.. java:import:: java.lang.reflect Constructor

.. java:import:: java.lang.reflect InvocationTargetException

.. java:import:: org.caosdb.server.database.exceptions TransactionException

.. java:import:: org.caosdb.server.transaction Transaction

EntityIdRegistry
================

.. java:package:: org.caosdb.server.entity
   :noindex:

.. java:type:: public class EntityIdRegistry

   An abstract layer for managing entity ids.

   That is, checking whether something is a well-formed id, generating well-formed ids and more.

   This class follows a Strategy Pattern. The actual implemenation can be found in one of the implementations of the \ :java:ref:`EntityIdRegistryStrategy`\  interface.

   :author: Timm Fitschen

Constructors
------------
EntityIdRegistry
^^^^^^^^^^^^^^^^

.. java:constructor:: public EntityIdRegistry(Transaction<?> t)
   :outertype: EntityIdRegistry

EntityIdRegistry
^^^^^^^^^^^^^^^^

.. java:constructor:: public EntityIdRegistry(EntityIdRegistryStrategy strategy)
   :outertype: EntityIdRegistry

EntityIdRegistry
^^^^^^^^^^^^^^^^

.. java:constructor:: public EntityIdRegistry(String strategy, Transaction<?> t)
   :outertype: EntityIdRegistry

Methods
-------
generate
^^^^^^^^

.. java:method:: public String generate()
   :outertype: EntityIdRegistry

   Return a well-formed, new and unused entity id.

matchIdPattern
^^^^^^^^^^^^^^

.. java:method:: public boolean matchIdPattern(String id)
   :outertype: EntityIdRegistry

   Return true if the id is a well-formed id.