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The WebObjects Java Extensions includes a Java package corresponding to each of the three key WebObjects Frameworks: Foundation, Enterprise Objects, and WebObjects. These packages are next.util, next.eo, and next.wo, respectively.
The next.util package contains Java classes that correspond to some of the more useful classes and protocols within NeXT's Foundation Framework. The Java classes in next.util and their corresponding Foundation classes or protocols are listed here:
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Foundation Class
Java Class or Protocol
Note that a given Java class doesn't necessarily implement all of the methods in the corresponding Foundation class. Also, the names of some of the methods in the Java class may not correspond exactly to the names of the equivalent methods in the corresponding Foundation class.
Reference documentation for the Java versions of these classes can be found in Reference/util/util.html. For the corresponding Foundation Framework documentation, see NEXT_ROOT/NextLibrary/Frameworks/Foundation.framework/Resources/English.lproj/Documentation/Reference/found.hlp.
The KeyValueCoding interface implements key-value coding for wrapped Objective-C objects. For "pure" Java objects (those that don't inherit from next.util.NextObject), you can obtain behavior similar to that provided by the next.util.KeyValueCoding interface through the use of the next.util.keyValue class.
Note that while the behavior is similar, it isn't identical. With a wrapped Objective-C object you'd use:
anObject.getValue("someField")
Whereas with next.util.keyValue you'd use:
keyValue.getValue(anObject, "someField")
The Java package next.eo contains a number of classes corresponding to some of the more useful classes within NeXT's Enterprise Objects Framework (specifically, within the EOControl and EOAccess frameworks). Those classes, and their corresponding EOF classes, are listed in the following table:
---------------------------------------------------------------------- Java Class EOControl Class EOAccess Class---------------------------------------------------------------------- AndQualifier EOAndQualifier CustomObject NSObjectAdditions DataSource EODataSource DatabaseDataSource EODatabaseDataSource DetailDataSource EODetailDataSource EditingContext EOEditingContext FetchSpecification EOFetchSpecification GenericRecord EOGenericRecord ModelGroup EOModelGroup NotQualifier EONotQualifier ObjectStore EOObjectStore ObjectStoreCoordinator EOObjectStoreCoordinator OrQualifier EOOrQualifier Qualifier EOQualifier SortOrdering EOSortOrdering and NSArrayAdditions ----------------------------------------------------------------------
Note that a given Java class doesn't necessarily implement all of the methods in the corresponding Enterprise Objects Framework class. Also, the names of some of the methods in the Java class may not correspond exactly to the names of the equivalent methods in the corresponding EOF class.
Reference documentation for the Java versions of these classes can be found in Reference/eo/eo.html. For the corresponding Enterprise Objects Framework documentation, see NEXT_ROOT/NextLibrary/Frameworks/EOControl.framework/Resources/English.lproj/Documentation/Reference/EOControl.hlp or NEXT_ROOT/NextLibrary/Frameworks/EOAccess.framework/Resources/English.lproj/Documentation/Reference/EOAccess.hlp.
The next.wo package contains a set of Java classes that correspond to some of the more useful classes within NeXT's WebObjects Framework. Those Java classes, and the WebObjects classes to which they correspond, are listed here:
-------------------------------- Java Class WebObjects Class-------------------------------- Component WOComponent Context WOContext DisplayGroup WODisplayGroup DynamicElement WODynamicElement Element WOElement Request WORequest Response WOResponse SessionStore WOSessionStore WebApplication WOApplication WebSession WOSession --------------------------------
Note that a given Java class doesn't necessarily implement all of the methods in the corresponding WebObjects class. Also, the names of some of the methods in the Java class may not correspond exactly to the names of the equivalent methods in the corresponding WebObjects class.
For information about this package, refer to the corresponding WebObjects documentation. WebObjects documentation can be accessed through the WebObjects "Home Page," which is located in NEXT_ROOT/NextLibrary/Documentation/NextDev/WebObjects/WOHomePage.html.
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