Lease write(Entry entry, Transaction txn, long lease) throws TransactionException, RemoteException; long NO_WAIT = 0;. JavaSpaces Example by Example. 4. This interface is implemented by servers that export a * JavaSpaces technology service. The operations in this interface * are the public methods that all such. JavaSpaces is a powerful Jini service that provides a high-level tool for creating . For example, a distribute algorithm might require processes to work in lock.

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The hands-on, example-rich guide to JavaSpaces technology Building robust, scalable, high-performance distributed applications Up-to-the-minute coverage based on Jini 1.

JavaSpaces Example by Example

Chapter 8, “Parallel Computing,” looks into some of the areas where you can get into performance trouble and also some of the ways in which JavaSpaces can be an aid to performance. Halter Published Nov 9, by Prentice Hall.

Types of Synchronization Problems. JavaSpaces Example by Example offers an example-rich introduction to JavaSpaces exzmple and its Jini network technology-based interfaces.

This chapter shows you how exampl of the security features of Java can be currently used with JavaSpaces. This chapter takes you through the process of installing Jini and JavaSpaces and running a simple application.

Chapter 6, “Preventing Deadlock,” discusses mechanisms for allowing processes to avoid deadlock. It covers a simple method of locating a single JavaSpace. Some common techniques for doing this, such as how to decide what computations could benefit from being distributed and how to distribute data, are discussed in this chapter.


A working knowledge of Java is needed, and an acquaintance with Jini concepts is very useful, but not required. Next, he introduces the fundamental concepts of development, including entries, leasing, events, transactions, and persistence.

In a distributed application, JavaSpaces provides a shared virtual space that providers and requesters of objects can examplee to communicate easily.

Starting the Supporting Services. There is currently no standard Jini security model. Although an experienced Jini developer may skip this chapter, for beginners, this should be extremely valuable.

This chapter covers some of the concepts involved with programming in a distributed environment. Halter provides in-depth coverage of scalability and availability, concluding with detailed guidance on using security features based on Java 2 technology to protect distributed JavaSpaces applications.

This will be used to illustrate the concepts of sharing data in a fair and reliable manner. Book Sorry, this book is no longer exaample print. JavaSpaces is a Jini technology service. The good news is that every year it is getting a little bit easier as programming technologies and tools gradually catch up to the needs of a distributed environment.

In particular, it uses the concept of a linked list to explore some of the differences between distributed and nondistributed data structures. This means that developers working with JavaSpaces can also make use of the various Jini services, such as transactions and notification. You’ll learn powerful distributed programming techniques, including the effective use of data structures and collections; and better ways to improve performance, prevent deadlock, and take full advantage of parallelism.


The application presents a small ordering processing system. Other Technologies of Interest. Piecing Together the Results. Preface Writing distributed programs is hard. In particular, some of the common problems, such as authorization javaspacess problems and improper codebase settings, are covered.

Core Technologies, 2nd Edition. That does not mean, however, that your application can have no security itself. In particular, the introduction of JavaSpaces technology simplifies the distributed computing environment in several ways.

Starting with the GUI. Using Transactions with JavaSpaces.

JavaSpaces Example by Example | InformIT

He walks you through obtaining, installing, and configuring JavaSpaces architecture, addressing common problems such as authorization configuration and improper codebase settings.

Extensive code examples illustrate: In it, you also briefly encounter some of the ways JavaSpaces are being used and might be used. Parallel Computing in General. JavaSpaces also provides the ability to create and store objects with persistence. On the “what” side, the JavaSpace interface is presented along with some definitions of what the interfaces are.

In Chapter javwspaces, “About JavaSpaces” you explore what JavaSpaces are, how this book deals with them, and why anyone would want to use them.