Package org.postgresql.util

Class ObjectFactory

java.lang.Object

org.postgresql.util.ObjectFactory

Direct Known Subclasses:

MakeSSL

public class ObjectFactory
extends Object

Helper class to instantiate objects. Note: the class is NOT public API, so it is subject to change.

Constructor Summary

Constructors

Constructor	Description
ObjectFactory()

Method Summary

Modifier and Type	Method	Description
static <T> T	instantiate(Class<T> expectedClass, String classname, Properties info, boolean tryString, @Nullable String stringarg)	Instantiates a class using the appropriate constructor.

Methods inherited from class java.lang.Object

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

Constructor Details

ObjectFactory

public ObjectFactory()

Method Details

instantiate

public static <T> T instantiate(Class<T> expectedClass,
 String classname,
 Properties info,
 boolean tryString,
 @Nullable String stringarg)
                         throws ClassNotFoundException,
SecurityException,
NoSuchMethodException,
IllegalArgumentException,
InstantiationException,
IllegalAccessException,
InvocationTargetException

Instantiates a class using the appropriate constructor. If a constructor with a single Propertiesparameter exists, it is used. Otherwise, if tryString is true a constructor with a single String argument is searched if it fails, or tryString is true a no argument constructor is tried.

Type Parameters:

T - type of expected class

Parameters:

expectedClass - expected class of type T, if the classname instantiated doesn't match the expected type of this class this method will fail

classname - name of the class to instantiate

info - parameter to pass as Properties

tryString - whether to look for a single String argument constructor

stringarg - parameter to pass as String

Returns:

the instantiated class

Throws:

ClassNotFoundException - if something goes wrong

SecurityException - if something goes wrong

NoSuchMethodException - if something goes wrong

IllegalArgumentException - if something goes wrong

InstantiationException - if something goes wrong

IllegalAccessException - if something goes wrong

InvocationTargetException - if something goes wrong