- java.lang.Object
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- javax.faces.model.DataModel<E>
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- javax.faces.model.ArrayDataModel<E>
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Constructor Summary
Constructors Constructor and Description ArrayDataModel()
Construct a newArrayDataModel
with no specified wrapped data.ArrayDataModel(E[] array)
Construct a newArrayDataModel
wrapping the specified array.
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method and Description int
getRowCount()
If there iswrappedData
available, return the length of the array.E
getRowData()
If row data is available, return the array element at the index specified byrowIndex
.int
getRowIndex()
Return the zero-relative index of the currently selected row.Object
getWrappedData()
Return the object representing the data wrapped by thisDataModel
, if any.boolean
isRowAvailable()
Returntrue
if there iswrappedData
available, and the current value ofrowIndex
is greater than or equal to zero, and less than the length of the array.void
setRowIndex(int rowIndex)
Set the zero-relative index of the currently selected row, or -1 to indicate that we are not positioned on a row.void
setWrappedData(Object data)
Set the object representing the data collection wrapped by thisDataModel
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Methods inherited from class javax.faces.model.DataModel
addDataModelListener, getDataModelListeners, iterator, removeDataModelListener
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
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Methods inherited from interface java.lang.Iterable
forEach, spliterator
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Constructor Detail
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ArrayDataModel
public ArrayDataModel()
Construct a new
ArrayDataModel
with no specified wrapped data.
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ArrayDataModel
public ArrayDataModel(E[] array)
Construct a new
ArrayDataModel
wrapping the specified array.- Parameters:
array
- Array to be wrapped (if any)
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Method Detail
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isRowAvailable
public boolean isRowAvailable()
Return
true
if there iswrappedData
available, and the current value ofrowIndex
is greater than or equal to zero, and less than the length of the array. Otherwise, returnfalse
.- Specified by:
isRowAvailable
in classDataModel<E>
- Throws:
FacesException
- if an error occurs getting the row availability
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getRowCount
public int getRowCount()
If there is
wrappedData
available, return the length of the array. If nowrappedData
is available, return -1.- Specified by:
getRowCount
in classDataModel<E>
- Throws:
FacesException
- if an error occurs getting the row count
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getRowData
public E getRowData()
If row data is available, return the array element at the index specified by
rowIndex
. If no wrapped data is available, returnnull
.- Specified by:
getRowData
in classDataModel<E>
- Throws:
FacesException
- if an error occurs getting the row dataIllegalArgumentException
- if now row data is available at the currently specified row index
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getRowIndex
public int getRowIndex()
Description copied from class:DataModel
Return the zero-relative index of the currently selected row. If we are not currently positioned on a row, or no
wrappedData
is available, return -1.- Specified by:
getRowIndex
in classDataModel<E>
- Throws:
FacesException
- if an error occurs getting the row index
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setRowIndex
public void setRowIndex(int rowIndex)
Description copied from class:DataModel
Set the zero-relative index of the currently selected row, or -1 to indicate that we are not positioned on a row. It is possible to set the row index at a value for which the underlying data collection does not contain any row data. Therefore, callers may use the
isRowAvailable()
method to detect whether row data will be available for use by thegetRowData()
method.If there is no
wrappedData
available when this method is called, the specifiedrowIndex
is stored (and may be retrieved by a subsequent call togetRowData()
), but no event is sent. Otherwise, if the currently selected row index is changed by this call, aDataModelEvent
will be sent to therowSelected()
method of all registeredDataModelListener
s.- Specified by:
setRowIndex
in classDataModel<E>
- Parameters:
rowIndex
- The new zero-relative index (must be non-negative)- Throws:
FacesException
- if an error occurs setting the row indexIllegalArgumentException
- ifrowIndex
is less than -1
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getWrappedData
public Object getWrappedData()
Description copied from class:DataModel
Return the object representing the data wrapped by this
DataModel
, if any.- Specified by:
getWrappedData
in classDataModel<E>
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setWrappedData
public void setWrappedData(Object data)
Description copied from class:DataModel
Set the object representing the data collection wrapped by this
DataModel
. If the specifieddata
isnull
, detach thisDataModel
from any previously wrapped data collection instead.If
data
is non-null
, the currently selected row index must be set to zero, and aDataModelEvent
must be sent to therowSelected()
method of all registeredDataModelListener
s indicating that this row is now selected.- Specified by:
setWrappedData
in classDataModel<E>
- Parameters:
data
- Data collection to be wrapped, ornull
to detach from any previous data collection- Throws:
ClassCastException
- ifdata
is non-null
and is not an array of Java objects.
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Document créé le 14/04/2008, dernière modification le 18/08/2025
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