com.espertech.esper.event.bean

Class DynamicSimplePropertyGetter

java.lang.Object

com.espertech.esper.event.bean.DynamicPropertyGetterBase

com.espertech.esper.event.bean.DynamicSimplePropertyGetter

All Implemented Interfaces:

EventPropertyGetter, BeanEventPropertyGetter, EventPropertyGetterSPI

public class DynamicSimplePropertyGetter
extends DynamicPropertyGetterBase

Getter for a dynamic property (syntax field.inner?), using vanilla reflection.

Constructor Summary

Constructors

Constructor and Description
DynamicSimplePropertyGetter(String fieldName, EventAdapterService eventAdapterService) Ctor.

Method Summary

Modifier and Type	Method and Description
protected Object	call(DynamicPropertyDescriptor descriptor, Object underlying) Call the getter to obtains the return result object, or null if no such method exists.
protected Method	determineMethod(Class clazz) To be implemented to return the method required, or null to indicate an appropriate method could not be found.

Methods inherited from class com.espertech.esper.event.bean.DynamicPropertyGetterBase

cacheAndCall, cacheAndExists, eventBeanExistsCodegen, eventBeanFragmentCodegen, eventBeanGetCodegen, get, getBeanProp, getBeanPropType, getFragment, getTargetType, isBeanExistsProperty, isExistsProperty, underlyingExistsCodegen, underlyingFragmentCodegen, underlyingGetCodegen

Methods inherited from class java.lang.Object

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

Constructor Detail

DynamicSimplePropertyGetter

public DynamicSimplePropertyGetter(String fieldName,
                                   EventAdapterService eventAdapterService)

Ctor.

Parameters:

fieldName - the property name

eventAdapterService - factory for event beans and event types

Method Detail

call

protected Object call(DynamicPropertyDescriptor descriptor,
                      Object underlying)

Description copied from class: DynamicPropertyGetterBase

Call the getter to obtains the return result object, or null if no such method exists.

Specified by:

call in class DynamicPropertyGetterBase

Parameters:

descriptor - provides method information for the class

underlying - is the underlying object to ask for the property value

Returns:

underlying

determineMethod

protected Method determineMethod(Class clazz)

Description copied from class: DynamicPropertyGetterBase

To be implemented to return the method required, or null to indicate an appropriate method could not be found.

Specified by:

determineMethod in class DynamicPropertyGetterBase

Parameters:

clazz - to search for a matching method

Returns:

method if found, or null if no matching method exists