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com.vaadin.flow.component.
Class AbstractField.ComponentValueChangeEvent<C extends Component,V>
- java.lang.Object
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- java.util.EventObject
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- com.vaadin.flow.component.ComponentEvent<C>
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- com.vaadin.flow.component.AbstractField.ComponentValueChangeEvent<C,V>
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Type Parameters:
C- the source component typeV- the value typeAll Implemented Interfaces:
Direct Known Subclasses:
Enclosing class:
AbstractField<C extends AbstractField<C,T>,T>
public static class AbstractField.ComponentValueChangeEvent<C extends Component,V> extends ComponentEvent<C> implements HasValue.ValueChangeEvent<V>Value change event fired by components.
Since:
1.0
Author:
Vaadin Ltd
See Also:
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Field Summary
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Fields inherited from class java.util.EventObject
source
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Constructor Summary
Constructors Constructor and Description ComponentValueChangeEvent(C source, HasValue<?,V> hasValue, V oldValue, boolean fromClient)Creates a new component value change event.
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Method Summary
All Methods Modifier and Type Method and Description HasValue<?,V>getHasValue()VgetOldValue()Returns the value of the source before this value change event occurred.
VgetValue()Returns the new value that triggered this value change event.
StringtoString()-
Methods inherited from class com.vaadin.flow.component.ComponentEvent
getSource, isFromClient, unregisterListener
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
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Methods inherited from interface com.vaadin.flow.component.HasValue.ValueChangeEvent
isFromClient
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Constructor Detail
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ComponentValueChangeEvent
public ComponentValueChangeEvent(C source, HasValue<?,V> hasValue, V oldValue, boolean fromClient)Creates a new component value change event.
Parameters:
source- the source componenthasValue- the HasValue from which the value originatesoldValue- the old valuefromClient- whether the value change originated from the client
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Method Detail
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getOldValue
public V getOldValue()Description copied from interface:
HasValue.ValueChangeEventReturns the value of the source before this value change event occurred.
Specified by:
getOldValuein interfaceHasValue.ValueChangeEvent<V>Returns:
the value previously held by the source of this event
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getValue
public V getValue()Description copied from interface:
HasValue.ValueChangeEventReturns the new value that triggered this value change event.
Specified by:
getValuein interfaceHasValue.ValueChangeEvent<V>Returns:
the new value
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getHasValue
public HasValue<?,V> getHasValue()This is typically the same instance as
ComponentEvent.getSource(), but in some cases theHasValueimplementation is separated from the component implementation.Specified by:
getHasValuein interfaceHasValue.ValueChangeEvent<V>
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toString
public String toString()Overrides:
toStringin classEventObject
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