Package org.hippoecm.frontend.model
Class JcrQueryModel
- java.lang.Object
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- org.apache.wicket.model.LoadableDetachableModel
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- org.hippoecm.frontend.model.JcrQueryModel
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- 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 JCRQuery
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:
- Serialized Form
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Field Summary
Fields Modifier and Type Field Description static int
UNKNOWN_SIZE
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Constructor Summary
Constructors Constructor Description JcrQueryModel(String statement, String language)
Create a model for a JCR query.
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Method Summary
All Methods Instance Methods Concrete Methods 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 firstIObserver
of this observable is registered with the observer registry, observation is started.void
stopObservation()
When the lastIObserver
unregisters, observation is stopped.-
Methods inherited from class org.apache.wicket.model.LoadableDetachableModel
detach, getObject, isAttached, of, onAttach, onDetach, setObject, toString
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface org.apache.wicket.model.IModel
combineWith, filter, flatMap, isPresent, map, orElse, orElseGet
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Methods inherited from interface org.hippoecm.frontend.model.event.IObservable
equals, hashCode
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Field Detail
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UNKNOWN_SIZE
public static final int UNKNOWN_SIZE
- See Also:
- Constant Field Values
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Method Detail
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load
protected Object load()
- Specified by:
load
in classorg.apache.wicket.model.LoadableDetachableModel
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iterator
public Iterator<Node> iterator(long first, long count)
- Specified by:
iterator
in interfaceorg.apache.wicket.markup.repeater.data.IDataProvider
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model
public org.apache.wicket.model.IModel<Node> model(Object object)
- Specified by:
model
in interfaceorg.apache.wicket.markup.repeater.data.IDataProvider
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size
public long size()
- Specified by:
size
in interfaceorg.apache.wicket.markup.repeater.data.IDataProvider
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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 interfaceIObservable
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startObservation
public void startObservation()
Description copied from interface:IObservable
When the firstIObserver
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 interfaceIObservable
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stopObservation
public void stopObservation()
Description copied from interface:IObservable
When the lastIObserver
unregisters, observation is stopped. Any listeners or observers registered by the observable must be unregistered by the implementation.- Specified by:
stopObservation
in interfaceIObservable
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