Package org.hippoecm.frontend.model

Class JcrQueryModel

java.lang.Object
org.apache.wicket.model.LoadableDetachableModel
org.hippoecm.frontend.model.JcrQueryModel
All Implemented Interfaces:
Serializable, org.apache.wicket.markup.repeater.data.IDataProvider, org.apache.wicket.model.IDetachable, org.apache.wicket.model.IModel, org.apache.wicket.util.io.IClusterable, IObservable
public class JcrQueryModel extends org.apache.wicket.model.LoadableDetachableModel implements org.apache.wicket.markup.repeater.data.IDataProvider, IObservable
Data provider that uses a JCR Query object to retrieve nodes.

Registering observers for this class is deprecated; plugins should register efficient listeners themselves. (since 'efficient' is dependent on the query being carried out, this cannot be done generically)

See Also:

  • Field Summary

    Fields
    Modifier and Type
    Field
    Description
    static final int
    UNKNOWN_SIZE
     

  • Constructor Summary

    Constructors
    Constructor
    Description
    JcrQueryModel(String statement, String language)
    Create a model for a JCR query.

  • Method Summary

    Modifier and Type
    Method
    Description
    Iterator<Node>
    iterator(long first, long count)
     
    protected Object
    load()
     
    org.apache.wicket.model.IModel<Node>
    model(Object object)
     
    void
    setObservationContext(IObservationContext context)
    Before observation is started on the observable, an observation context is injected by the observer registry.
    long
    size()
     
    void
    startObservation()
    When the first IObserver of this observable is registered with the observer registry, observation is started.
    void
    stopObservation()
    When the last IObserver unregisters, observation is stopped.

    Methods inherited from class org.apache.wicket.model.LoadableDetachableModel

    detach, getObject, isAttached, of, onAttach, onDetach, setObject, toString

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

    Methods inherited from interface org.apache.wicket.markup.repeater.data.IDataProvider

    detach

    Methods inherited from interface org.apache.wicket.model.IModel

    as, combineWith, filter, flatMap, isPresent, map, orElse, orElseGet

    Methods inherited from interface org.hippoecm.frontend.model.event.IObservable

    equals, hashCode

  • Field Details

  • Constructor Details

    • JcrQueryModel

      public JcrQueryModel(String statement, String language)
      Create a model for a JCR query.
      Parameters:
      statement - the statement to execute
      language - the language of the statement

  • Method Details

    • load

      protected Object load()
      Specified by:
      load in class org.apache.wicket.model.LoadableDetachableModel

    • iterator

      public Iterator<Node> iterator(long first, long count)
      Specified by:
      iterator in interface org.apache.wicket.markup.repeater.data.IDataProvider

    • model

      public org.apache.wicket.model.IModel<Node> model(Object object)
      Specified by:
      model in interface org.apache.wicket.markup.repeater.data.IDataProvider

    • size

      public long size()
      Specified by:
      size in interface org.apache.wicket.markup.repeater.data.IDataProvider

    • setObservationContext

      public void setObservationContext(IObservationContext context)
      Description copied from interface: IObservable
      Before observation is started on the observable, an observation context is injected by the observer registry. This context can be used to notify listeners.
      Specified by:
      setObservationContext in interface IObservable

    • startObservation

      public void startObservation()
      Description copied from interface: IObservable
      When the first IObserver of this observable is registered with the observer registry, observation is started. Implementations must notify observers until observation is stopped.

      An implementation should register listeners with external data sources, when appropriate. It is possible for an observable to register as an observer for another observable.

      Specified by:
      startObservation in interface IObservable

    • stopObservation

      public void stopObservation()
      Description copied from interface: IObservable
      When the last IObserver unregisters, observation is stopped. Any listeners or observers registered by the observable must be unregistered by the implementation.
      Specified by:
      stopObservation in interface IObservable