org.springframework.binding.value.support
Class MethodInvokingDerivedValueModel
java.lang.Object
org.springframework.binding.value.support.AbstractPropertyChangePublisher
org.springframework.binding.value.support.AbstractValueModel
org.springframework.binding.value.support.AbstractDerivedValueModel
org.springframework.binding.value.support.MethodInvokingDerivedValueModel
- All Implemented Interfaces:
- DerivedValueModel, PropertyChangePublisher, ValueModel
public final class MethodInvokingDerivedValueModel
- extends AbstractDerivedValueModel
A value model that derives it's value from the result of invoking a method.
The parameters for the method invocation are generated from a list of
"source" value models. Should any of the "source" values change the method
will be invoked and if the return value has changed the value held by
this class will be updated.
- Author:
- Oliver Hutchison
Method Summary |
Object |
getValue()
Returns this model's value. |
protected void |
sourceValuesChanged()
Derive the value from the source values and fire a valueChangeEvent to
notify listeners. |
Methods inherited from class org.springframework.binding.value.support.AbstractValueModel |
addValueChangeListener, fireValueChange, fireValueChange, fireValueChange, fireValueChange, fireValueChange, fireValueChangeEvent, fireValueChangeWhenStillEqual, getValueChangeDetector, hasValueChanged, removeValueChangeListener, setValueChangeDetector, setValueSilently |
Methods inherited from class org.springframework.binding.value.support.AbstractPropertyChangePublisher |
addPropertyChangeListener, addPropertyChangeListener, addVetoableChangeListener, addVetoableChangeListener, firePropertiesChanged, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, firePropertyChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, fireVetoableChange, getPropertyChangeListeners, getPropertyChangeListeners, getVetoableChangeListeners, getVetoableChangeListeners, hasChanged, hasChanged, hasChanged, hasChanged, hasChanged, hasChanged, removePropertyChangeListener, removePropertyChangeListener, removeVetoableChangeListener, removeVetoableChangeListener |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
MethodInvokingDerivedValueModel
public MethodInvokingDerivedValueModel(Object target,
String methodName,
ValueModel[] paramSourceValueModels)
sourceValuesChanged
protected void sourceValuesChanged()
- Description copied from class:
AbstractDerivedValueModel
- Derive the value from the source values and fire a valueChangeEvent to
notify listeners.
- Specified by:
sourceValuesChanged
in class AbstractDerivedValueModel
getValue
public Object getValue()
- Description copied from interface:
ValueModel
- Returns this model's value. In case of a write-only value,
implementers may choose to either reject this operation or
or return
null
or any other appropriate value.
- Returns:
- this model's value
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