Package com.gpudb

Class TypeObjectMap.MethodHandler

java.lang.Object

com.gpudb.TypeObjectMap.MethodHandler

All Implemented Interfaces:

TypeObjectMap.Accessor, TypeObjectMap.Mutator

Enclosing class:

TypeObjectMap<T>

public static final class TypeObjectMap.MethodHandler
extends Object
implements TypeObjectMap.Accessor, TypeObjectMap.Mutator

A combined TypeObjectMap.Accessor and TypeObjectMap.Mutator that provides access to a field via specified get and set methods using reflection. The get method must be public and take no parameters, and the set method must be public and take one parameter of the same type returned by the get method.

Constructor Summary

Constructors

Constructor	Description
MethodHandler(Method getMethod, Method setMethod)	Creates a TypeObjectMap.MethodHandler for the specified get and set methods.

Method Summary

Modifier and Type	Method	Description
Object	get(Object o)	Returns a value from the specified object via the get method specified in the constructor.
void	set(Object o, Object value)	Sets a value in the specified object via the set method specified in the constructor.

Methods inherited from class java.lang.Object

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

Constructor Detail

MethodHandler

public MethodHandler(Method getMethod,
                     Method setMethod)

Creates a TypeObjectMap.MethodHandler for the specified get and set methods. The get method must be public and take no parameters, and the set method must be public and take one parameter of the same type returned by the get method.

Parameters:

getMethod - the get method

setMethod - the set method

Throws:

IllegalArgumentException - if the specified methods are not of the correct form

Method Detail

get

public Object get(Object o)

Returns a value from the specified object via the get method specified in the constructor. The object must belong to the class containing the method.

Specified by:

get in interface TypeObjectMap.Accessor

Parameters:

o - the object

Returns:

the value returned by the get method

Throws:

GPUdbRuntimeException - if the value could not be retrieved

set

public void set(Object o,
                Object value)

Sets a value in the specified object via the set method specified in the constructor. The object must belong to the class containing the method.

Specified by:

set in interface TypeObjectMap.Mutator

Parameters:

o - the object

value - the new value of the field

Throws:

GPUdbRuntimeException - if the value could not be set