![]() | EventPropertyGetter Interface |
Namespace: com.espertech.esper.common.client
public interface EventPropertyGetter : EventPropertyValueGetter
The EventPropertyGetter type exposes the following members.
Name | Description | |
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![]() | Get |
Return the value for the property in the event object specified when the instance was obtained.
Useful for fast access to event properties. Throws a PropertyAccessException if the getter instance
doesn't match the EventType it was obtained from, and to indicate other property access problems.
(Inherited from EventPropertyValueGetter.) |
![]() | GetFragment |
Returns or array of 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 of
the Instance(s) returned by this method can be determined by
. Use 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.
|
![]() | IsExistsProperty |
Returns true if the property exists, or false if the type does not have such a property.
Useful for dynamic properties of the syntax "property?" and the dynamic nested/indexed/mapped versions.
Dynamic nested properties follow the syntax "property?.nested" which is equivalent to "property?.nested?".
If any of the properties in the path of a dynamic nested property return null, the dynamic nested property
does not exists and the method returns false. For non-dynamic properties, this method always returns
true since a getter would not be available unless
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