# EventObject Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) # EventObject ``` open class EventObject : Serializable ``` |---|------------------------------------------------------------------------------------------------| | [kotlin.Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html) || | ↳ | [java.util.EventObject](https://developer.android.com/reference/kotlin/java/util/EventObject#) | 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| Known Direct Subclasses [ConnectionEvent](https://developer.android.com/reference/kotlin/javax/sql/ConnectionEvent.html#),[HandshakeCompletedEvent](https://developer.android.com/reference/kotlin/javax/net/ssl/HandshakeCompletedEvent.html#),[NodeChangeEvent](https://developer.android.com/reference/kotlin/java/util/prefs/NodeChangeEvent),[PreferenceChangeEvent](https://developer.android.com/reference/kotlin/java/util/prefs/PreferenceChangeEvent),[PropertyChangeEvent](https://developer.android.com/reference/kotlin/java/beans/PropertyChangeEvent.html#),[RowSetEvent](https://developer.android.com/reference/kotlin/javax/sql/RowSetEvent.html#),[SSLSessionBindingEvent](https://developer.android.com/reference/kotlin/javax/net/ssl/SSLSessionBindingEvent.html#),[StatementEvent](https://developer.android.com/reference/kotlin/javax/sql/StatementEvent.html#) |-----------------------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------| | [ConnectionEvent](https://developer.android.com/reference/kotlin/javax/sql/ConnectionEvent.html#) | An`Event`object that provides information about the source of a connection-related event. | | [HandshakeCompletedEvent](https://developer.android.com/reference/kotlin/javax/net/ssl/HandshakeCompletedEvent.html#) | This event indicates that an SSL handshake completed on a given SSL connection. | | [NodeChangeEvent](https://developer.android.com/reference/kotlin/java/util/prefs/NodeChangeEvent) | An event emitted by a Preferences node to indicate that a child of that node has been added or removed. | | [PreferenceChangeEvent](https://developer.android.com/reference/kotlin/java/util/prefs/PreferenceChangeEvent) | An event emitted by a Preferences node to indicate that a preference has been added, removed or has had its value changed. | | [PropertyChangeEvent](https://developer.android.com/reference/kotlin/java/beans/PropertyChangeEvent.html#) | A "PropertyChange" event gets delivered whenever a bean changes a "bound" or "constrained" property. | | [RowSetEvent](https://developer.android.com/reference/kotlin/javax/sql/RowSetEvent.html#) | An`Event`object generated when an event occurs to a`RowSet`object. | | [SSLSessionBindingEvent](https://developer.android.com/reference/kotlin/javax/net/ssl/SSLSessionBindingEvent.html#) | This event is propagated to a SSLSessionBindingListener. | | [StatementEvent](https://developer.android.com/reference/kotlin/javax/sql/StatementEvent.html#) | A`StatementEvent`is sent to all`StatementEventListener`s which were registered with a`PooledConnection`. | | |--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------| | Known Indirect Subclasses [IndexedPropertyChangeEvent](https://developer.android.com/reference/kotlin/java/beans/IndexedPropertyChangeEvent.html#) |--------------------------------------------------------------------------------------------------------------------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------| | [IndexedPropertyChangeEvent](https://developer.android.com/reference/kotlin/java/beans/IndexedPropertyChangeEvent.html#) | An "IndexedPropertyChange" event gets delivered whenever a component that conforms to the JavaBeans™ specification (a "bean") changes a bound indexed property. | | The root class from which all event state objects shall be derived. All Events are constructed with a reference to the object, the "source", that is logically deemed to be the object upon which the Event in question initially occurred upon. ## Summary | Public constructors || |-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|---| | [EventObject](https://developer.android.com/reference/kotlin/java/util/EventObject#EventObject(kotlin.Any))`(`source:` `[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!`)` Constructs a prototypical Event. | | Public methods || |--------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------------| | open[Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)! | [getSource](https://developer.android.com/reference/kotlin/java/util/EventObject#getSource())`()` The object on which the Event initially occurred. | | open[String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) | [toString](https://developer.android.com/reference/kotlin/java/util/EventObject#toString())`()` Returns a String representation of this EventObject. | | Properties || |-----------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------------------------------------------------------| | [Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)! | [source](https://developer.android.com/reference/kotlin/java/util/EventObject#source:kotlin.Any) The object on which the Event initially occurred. | ## Public constructors ### EventObject Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` EventObject(source: Any!) ``` Constructs a prototypical Event. | Parameters || |----------|------------------------------------------------------------------------------------------------------------------------------| | `source` | [Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)!:the object on which the Event initially occurred | | Exceptions || |--------------------------------------|-------------------| | `java.lang.IllegalArgumentException` | if source is null | ## Public methods ### getSource Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun getSource(): Any! ``` The object on which the Event initially occurred. | Return || |-----------------------------------------------------------------------------|--------------------------------------------------| | [Any](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-any/index.html)! | the object on which the Event initially occurred | ### toString Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` open fun toString(): String ``` Returns a String representation of this EventObject. | Return || |----------------------------------------------------------------------------------|---------------------------------------------| | [String](https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/-string/index.html) | a String representation of this EventObject | ## Properties ### source Added in[API level 1](https://developer.android.com/guide/topics/manifest/uses-sdk-element.html#ApiLevels) ``` protected var source: Any! ``` The object on which the Event initially occurred.