Module com.aoapps.dbc

Package com.aoapps.dbc

Class AutoObjectFactory<T>

java.lang.Object

com.aoapps.dbc.AutoObjectFactory<T>

All Implemented Interfaces:

ObjectFactory<T>, ObjectFactoryE<T,RuntimeException>

public class AutoObjectFactory<T>
extends Object
implements ObjectFactory<T>

Creates instances of objects by using reflection and passing-in the parameters in the same order as the matching constructor. For unknown classes, will try to find any valueOf(int) or valueOf(String) methods to create the object instance.

Author:

AO Industries, Inc.

Constructor Summary

Constructors

Constructor	Description
AutoObjectFactory(Class<? extends T> clazz, Object... prefixParams)

Method Summary

Modifier and Type	Method	Description
T	createObject(ResultSet result)	Creates one object from the current values in the ResultSet.
static Method	getValueOfIntMethod(Class<?> clazz)	Gets the valueOf(int) for the provided class or null if doesn't exist or is non-static or non-public.
static Method	getValueOfStringMethod(Class<?> clazz)	Gets the valueOf(String) for the provided class or null if doesn't exist or is non-static or non-public.
boolean	isNullable()	Gets if this object factory can return null from ObjectFactoryE.createObject(java.sql.ResultSet).

Methods inherited from class java.lang.Object

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

Constructor Details

AutoObjectFactory

public AutoObjectFactory(Class<? extends T> clazz,
 Object... prefixParams)

Method Details

getValueOfIntMethod

public static Method getValueOfIntMethod(Class<?> clazz)

Gets the valueOf(int) for the provided class or null if doesn't exist or is non-static or non-public.

getValueOfStringMethod

public static Method getValueOfStringMethod(Class<?> clazz)

Gets the valueOf(String) for the provided class or null if doesn't exist or is non-static or non-public.

createObject

public T createObject(ResultSet result)
               throws SQLException

Creates one object from the current values in the ResultSet. Looks for a constructor that is assignable to the prefixParams and the result set values. The constructor must exactly match the number of prefixParams plus the result set.

Specified by:

createObject in interface ObjectFactory<T>

Specified by:

createObject in interface ObjectFactoryE<T,RuntimeException>

Throws:

SQLException

isNullable

public boolean isNullable()

Gets if this object factory can return null from ObjectFactoryE.createObject(java.sql.ResultSet).

Note: This is used to enable the Spliterator.NONNULL on streams.

Specified by:

isNullable in interface ObjectFactoryE<T,RuntimeException>

Returns:

false