to.etc.domui.injector

Class UrlFindEntityByPkInjector

java.lang.Object

to.etc.domui.injector.PropertyInjector

to.etc.domui.injector.UrlFindEntityByPkInjector

public class UrlFindEntityByPkInjector
extends PropertyInjector

This property injector takes the named URL parameter as a string. It does a lookup of the entity specified in the MetaData and locates it's ID property. The URL parameter string is then converted to the type of that primary key using the ConverterRegistry's URL converters. Finally it issues a LOOKUP of the entity using that PK. This converter accepts the special value "NEW"; when that is present it constructs a new instance of the entity.

Author:

Frits Jalvingh Created on Dec 19, 2008

Constructor Summary

Constructors

Constructor and Description
UrlFindEntityByPkInjector(Method propertySetter, String name, boolean mandatory, Class<?> enityClass, PropertyMetaModel<?> pkMetaPmm)

Method Summary

Modifier and Type	Method and Description
protected Object	createNew(UrlPage page) Create a new instance.
protected Object	getKeyInstance(QDataContext dc, UrlPage page, String pkValue)
protected String	getParameterName()
protected String	getParameterValue(UrlPage page, IPageParameters papa)
void	inject(UrlPage page, IPageParameters papa)
protected boolean	isMandatory()
protected boolean	isNew(UrlPage page, IPageParameters papa, String value) Returns T if the request is to create a new instance.

Methods inherited from class to.etc.domui.injector.PropertyInjector

getPropertySetter, setValue

Methods inherited from class java.lang.Object

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

Constructor Detail

UrlFindEntityByPkInjector

public UrlFindEntityByPkInjector(Method propertySetter,
                                 String name,
                                 boolean mandatory,
                                 Class<?> enityClass,
                                 PropertyMetaModel<?> pkMetaPmm)

Method Detail

getParameterName

protected String getParameterName()

isMandatory

protected boolean isMandatory()

getParameterValue

protected String getParameterValue(UrlPage page,
                                   IPageParameters papa)
                            throws Exception

Throws:

Exception

createNew

protected Object createNew(UrlPage page)

Create a new instance.

Returns:

isNew

protected boolean isNew(UrlPage page,
                        IPageParameters papa,
                        String value)
                 throws Exception

Returns T if the request is to create a new instance.

Parameters:

page -

papa -

value -

Returns:

Throws:

Exception

getKeyInstance

protected Object getKeyInstance(QDataContext dc,
                                UrlPage page,
                                String pkValue)
                         throws Exception

Throws:

Exception

inject

public void inject(@Nonnull
                   UrlPage page,
                   @Nonnull
                   IPageParameters papa)
            throws Exception

Specified by:

inject in class PropertyInjector

Throws:

Exception