public abstract class IlvFormattedNumberProperty extends IlvAbstractStringProperty
IlvFormattedNumberProperty
is an abstract adapter, whose
subclasses allow a numerical property of arbitrary objects to be accessed as
a String
via the generic IlvStringProperty
interface.
Here is an example of a subclass which adapts a Float
property:
// Adapter representing the Bar property of Foo objects. Bar values // are of type Float. public class FooBarProperty extends IlvAbstractStringProperty { public FooBarProperty () { } public FooBarProperty (NumberFormat formatter) { super(formatter); } public FooBarProperty (String pattern) { super(pattern); } protected Object getValueImpl (Object aFoo) { return ((Foo)aFoo).getBar(); } protected Object setValueImpl (Object aFoo, Object newValue) { ((Foo)aFoo).setBar((Float)newValue); } ... }If the property is a primitive numerical type, then the get and set methods would need to be changed like this:
// Adapter representing the Bar property of Foo objects. Bar values // are primitive float's. public class FooBarProperty extends IlvAbstractStringProperty { //.. Constructors same as above protected Object getValueImpl (Object aFoo) { return new Float(((Foo)aFoo).getBar()); } protected Object setValueImpl (Object aFoo, Object newValue) { ((Foo)aFoo).setBar(((Number)newValue).floatValue()); } ... }
_formatter
Constructor and Description |
---|
IlvFormattedNumberProperty()
Constructs a new
IlvFormattedNumberProperty with a
default NumberFormat . |
IlvFormattedNumberProperty(NumberFormat formatter)
Constructs a new
IlvFormattedNumberProperty with the
specified number formatter. |
IlvFormattedNumberProperty(String pattern)
Constructs a new
IlvFormattedNumberProperty with
a DecimalFormat which uses the specified formatting
string in the default locale. |
Modifier and Type | Method and Description |
---|---|
void |
setFormat(String pattern)
Sets the adapter's formatter to be a
DecimalFormat which
uses the specified formatting string in the default locale. |
changedRowsIterator, getFormat, getValue, getValueImpl, isPropertyChangedEvent, setFormat, setValue, setValueImpl
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
getEventClass
public IlvFormattedNumberProperty()
IlvFormattedNumberProperty
with a
default NumberFormat
.public IlvFormattedNumberProperty(NumberFormat formatter)
IlvFormattedNumberProperty
with the
specified number formatter.formatter
- The number formatter.public IlvFormattedNumberProperty(String pattern)
IlvFormattedNumberProperty
with
a DecimalFormat
which uses the specified formatting
string in the default locale.public void setFormat(String pattern)
DecimalFormat
which
uses the specified formatting string in the default locale.pattern
- The DecimalFormat
formatting pattern.© Copyright Rogue Wave Software, Inc. 1997, 2018. All Rights Reserved.