com.espertech.esper.event.bean

Class DynamicMappedPropertyGetter

java.lang.Object

com.espertech.esper.event.bean.DynamicPropertyGetterBase

com.espertech.esper.event.bean.DynamicMappedPropertyGetter

All Implemented Interfaces:

EventPropertyGetter, BeanEventPropertyGetter, EventPropertyGetterSPI

public class DynamicMappedPropertyGetter
extends DynamicPropertyGetterBase

Getter for a dynamic mapped property (syntax field.mapped('key')?), using vanilla reflection.

Constructor Summary

Constructors

Constructor and Description
DynamicMappedPropertyGetter(String fieldName, String key, 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.
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

DynamicMappedPropertyGetter

public DynamicMappedPropertyGetter(String fieldName,
                                   String key,
                                   EventAdapterService eventAdapterService)

Ctor.

Parameters:

fieldName - property name

key - mapped access key

eventAdapterService - factory for event beans and event types

Method Detail

determineMethod

public Method determineMethod(Class clazz)
                       throws PropertyAccessException

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

Throws:

PropertyAccessException

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