| DataProviderPropertyResolver is a
PropertyResolver implementation that, if the base
parameter is a
DataProvider , passes calls to getValue(),
getType(), isReadOnly(), and setValue()
to the corresponding
DataProvider instance. Otherwise, it follows
the standard JSF decorator pattern and delegates processing to the decorated
PropertyResolver instance.
These expressions are supported:
#{...myDataProvider.value.FIELD_ID}
#{...myDataProvider.value['FIELD_ID']}
--> binds to the value of the
FieldKey corresponding to 'FIELD_ID' in
a DataProvider *or* the cursor row of a TableDataProvider. If the specified
FIELD_ID does not correspond to a FieldKey in the DataProvider, this property
resolver will throw a PropertyNotFoundException, and include any nested
exceptions.
#{...myDataProvider.value[':ROWKEY:']}
--> binds to the 'cursorRow'
RowKey of a TableDataProvider or the
'tableRow' RowKey of a TableRowDataProvider. If the DataProvider is not one
of these, this binds to nothing. Note that cursor or tableRow can be
driven* by this binding. It is not read-only.
#{...myDataProvider.value[':ROWID:']}
--> binds to the 'cursorRow'
RowKey 's ID (String) of a
TableDataProvider or the 'tableRow' RowKey's ID of a TableRowDataProvider.
If the DataProvider is not one of these, this binds to nothing. Note that
cursor or tableRow can be *driven* by this binding. It is not read-only.
#{...myDataProvider.selectItems.FIELD_ID}
#{...myDataProvider.selectItems['FIELD_ID']}
#{...myDataProvider.selectItems['VALUE_FIELD_ID,LABEL_FIELD_ID']}
#{...myDataProvider.selectItems['VALUE_FIELD_ID,LABEL_FIELD_ID,DESC_FIELD_ID']}
#{...myDataProvider.selectItems[':ROWKEY:,:ROWKEY:,:ROWKEY:']}
#{...myDataProvider.selectItems[':ROWID:,:ROWID:,:ROWID:']}
--> binds to an array of
SelectItem generated by scanning the rows of
the TableDataProvider (without moving the cursor). If the base object is a
DataProvider, but not a TableDataProvider, the resulting SelectItem[] will
have one element. Note that the special :ROWKEY: and :ROWID: field IDs can
be used here.
#{...myDataProvider.options.FIELD_ID}
#{...myDataProvider.options['FIELD_ID']}
#{...myDataProvider.options['VALUE_FIELD_ID,LABEL_FIELD_ID']}
#{...myDataProvider.options['VALUE_FIELD_ID,LABEL_FIELD_ID,DESC_FIELD_ID']}
#{...myDataProvider.options[':ROWKEY:,:ROWKEY:,:ROWKEY:']}
#{...myDataProvider.options[':ROWID:,:ROWID:,:ROWID:']}
--> binds to an array of
Option generated by scanning the rows of the
TableDataProvider (without moving the cursor). If the base object is a
DataProvider, but not a TableDataProvider, the resulting Option[] will have
one element. Note that the special :ROWKEY: and :ROWID: field IDs can be
used here.
#{...myDataProvider.stringList.FIELD_ID}
#{...myDataProvider.stringList['FIELD_ID']}
#{...myDataProvider.stringList[':ROWKEY:']}
#{...myDataProvider.stringList[':ROWID:']}
--> binds to an array of String generated by scanning the rows of the
TableDataProvider (without moving the cursor) and calling toString() on each
value. If the base object is a DataProvider, but not a TableDataProvider,
the resulting String[] will have one element. Note that the special :ROWKEY:
and :ROWID: field IDs can be used here.
author:
Joe Nuxoll |