javax.faces.event: public class: MethodExpressionValueChangeListener

javax.faces.event
public class: MethodExpressionValueChangeListener [javadoc | source]

java.lang.Object
   javax.faces.event.MethodExpressionValueChangeListener

All Implemented Interfaces:
StateHolder, ValueChangeListener

MethodExpressionValueChangeListener is a ValueChangeListener that wraps a MethodExpression . When it receives a ValueChangeEvent , it executes a method on an object identified by the MethodExpression .

Constructor:
public MethodExpressionValueChangeListener() { }
public MethodExpressionValueChangeListener(MethodExpression methodExpression) { super(); this.methodExpression = methodExpression; } Construct a ValueChangeListener that contains a MethodExpression .

Constructor:

 public MethodExpressionValueChangeListener() {

}

 public MethodExpressionValueChangeListener(MethodExpression methodExpression) {
        super();
        this.methodExpression = methodExpression;
}

Method from javax.faces.event.MethodExpressionValueChangeListener Summary:
isTransient, processValueChange, restoreState, saveState, setTransient

Methods from java.lang.Object:
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method from javax.faces.event.MethodExpressionValueChangeListener Detail:
public boolean isTransient() { return isTransient; }
public void processValueChange(ValueChangeEvent valueChangeEvent) throws AbortProcessingException { if (valueChangeEvent == null) { throw new NullPointerException(); } try { FacesContext context = FacesContext.getCurrentInstance(); ELContext elContext = context.getELContext(); methodExpression.invoke(elContext, new Object[] {valueChangeEvent}); } catch (ELException ee) { throw new AbortProcessingException(ee.getMessage(), ee.getCause()); } }
public void restoreState(FacesContext context, Object state) { methodExpression = (MethodExpression) ((Object[]) state)[0]; }
public Object saveState(FacesContext context) { return new Object[] { methodExpression }; }
public void setTransient(boolean newTransientValue) { isTransient = newTransientValue; }