com.espertech.esper.event.vaevent

Class RevisionEventBeanDeclared

java.lang.Object

com.espertech.esper.event.vaevent.RevisionEventBeanDeclared

All Implemented Interfaces:

EventBean

public class RevisionEventBeanDeclared
extends Object
implements EventBean

Revision event bean for the overlayed scheme.

Constructor Summary

Constructors

Constructor and Description
RevisionEventBeanDeclared(RevisionEventType eventType, EventBean underlying) Ctor.

Method Summary

Modifier and Type	Method and Description
Object	get(String property) Returns the value of an event property for the given property name or property expression.
EventType	getEventType() Return the EventType instance that describes the set of properties available for this event.
Object	getFragment(String propertyExpression) Returns event beans or array of event bean for a property name or property expression.
Object	getKey() Returns the key.
EventBean	getLastBaseEvent() Returns last base event.
RevisionEventType	getRevisionEventType() Returns the revision event type.
Object	getUnderlying() Get the underlying data object to this event wrapper.
EventBean	getUnderlyingFullOrDelta() Returns wrapped event.
Object	getVersionedValue(RevisionGetterParameters parameters) Returns a versioned value.
boolean	isLatest() Returns true if latest event, or false if not.
void	setHolders(RevisionBeanHolder[] holders) Sets versions.
void	setKey(Object key) Sets the key value.
void	setLastBaseEvent(EventBean lastBaseEvent) Sets the last base event.
void	setLatest(boolean latest) Set flag to indicate there is a later event.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

RevisionEventBeanDeclared

public RevisionEventBeanDeclared(RevisionEventType eventType,
                                 EventBean underlying)

Ctor.

Parameters:

eventType - revision event type

underlying - event wrapped

Method Detail

isLatest

public boolean isLatest()

Returns true if latest event, or false if not.

Returns:

indicator if latest

setLatest

public void setLatest(boolean latest)

Set flag to indicate there is a later event.

Parameters:

latest - flag to set

setKey

public void setKey(Object key)

Sets the key value.

Parameters:

key - value

setLastBaseEvent

public void setLastBaseEvent(EventBean lastBaseEvent)

Sets the last base event.

Parameters:

lastBaseEvent - base event

setHolders

public void setHolders(RevisionBeanHolder[] holders)

Sets versions.

Parameters:

holders - versions

getLastBaseEvent

public EventBean getLastBaseEvent()

Returns last base event.

Returns:

base event

getUnderlyingFullOrDelta

public EventBean getUnderlyingFullOrDelta()

Returns wrapped event.

Returns:

wrapped event

getKey

public Object getKey()

Returns the key.

Returns:

key

getRevisionEventType

public RevisionEventType getRevisionEventType()

Returns the revision event type.

Returns:

type

getEventType

public EventType getEventType()

Description copied from interface: EventBean

Return the EventType instance that describes the set of properties available for this event.

Specified by:

getEventType in interface EventBean

Returns:

event type

get

public Object get(String property)
           throws PropertyAccessException

Description copied from interface: EventBean

Returns the value of an event property for the given property name or property expression.

Returns null if the property value is null. Throws an exception if the expression is not valid against the event type.

The method takes a property name or property expression as a parameter. Property expressions may include indexed properties via the syntax "name[index]", mapped properties via the syntax "name('key')", nested properties via the syntax "outer.inner" or combinations thereof.

Specified by:

get in interface EventBean

Parameters:

property - - name or expression of the property whose value is to be retrieved

Returns:

the value of a property with the specified name.

Throws:

PropertyAccessException - - if there is no property of the specified name, or the property cannot be accessed

getUnderlying

public Object getUnderlying()

Description copied from interface: EventBean

Get the underlying data object to this event wrapper.

Specified by:

getUnderlying in interface EventBean

Returns:

underlying data object, usually either a Map or a Java bean instance.

getFragment

public Object getFragment(String propertyExpression)

Description copied from interface: EventBean

Returns event beans or array of event bean for a property name or property expression.

For use with properties whose value is itself an event or whose value can be represented as an event by the underlying event representation.

The EventType of the event bean instance(s) returned by this method can be determined by EventType.getFragmentType(String). Use EventPropertyDescriptor to obtain a list of properties that return fragments from an event type.

Returns null if the property value is null or the property value cannot be represented as a fragment by the underlying representation.

The method takes a property name or property expression as a parameter. Property expressions may include indexed properties via the syntax "name[index]", mapped properties via the syntax "name('key')", nested properties via the syntax "outer.inner" or combinations thereof.

Specified by:

getFragment in interface EventBean

Parameters:

propertyExpression - - name or expression of the property whose value is to be presented as an EventBean or array of EventBean

Returns:

the value of a property as an EventBean or array of EventBean

getVersionedValue

public Object getVersionedValue(RevisionGetterParameters parameters)

Returns a versioned value.

Parameters:

parameters - getter parameters

Returns:

value