Book Image

Alfresco 3 Enterprise Content Management Implementation

Book Image

Alfresco 3 Enterprise Content Management Implementation

Overview of this book

Alfresco 3.0 has generated a lot of curiosity with its new content management features. Users have been waiting for a book that covers these concepts along with the security, dashboards, and configuration features of Alfresco 3. Alfresco 3 includes Alfresco Surf, a new N-Tier Architecture, which delivers scalability and accommodates more users on existing hardware resources. This new release also includes a draft implementation of the CMIS specification, and Microsoft Office SharePoint Protocol support. The new multi-tenancy features enable Alfresco ECM to be configured as a single-instance multi-tenant environment. This well-crafted and easy-to-use book is a complete guide to implementing enterprise content management in your business using Alfresco 3. It covers the enhanced document management, a new web-based collaborative application called Alfresco Share, and various integration options with external applications. Alfresco 3 offers true Enterprise Content Management (ECM) by providing an open source alternative to Microsoft SharePoint, Documentum, and Interwoven. It is the most popular Java-based CMS with over 1.5 million downloads, 50,000 live sites, 74,000 community members, and with more than 150 application extensions in forge. This book guides you through creating smart, collaborative content repositories and shows how to use Alfresco 3 to create more elegant document sharing, better collaborative working, and reliable automated workflow processes. The book also explains how administrators can set up Alfresco 3 for multiple business units as a single-instance multi-tenant environment. Business users can leverage Alfresco Share, a new built-in web-based collaborative content management application bundled with Alfresco repository. It simplifies capturing, sharing, and retrieval of information across virtual teams. This book shows you how to unleash the power of Alfresco 3 to create collaborative working systems in your enterprise
Table of Contents (22 chapters)
Alfresco 3 Enterprise Content Management Implementation
Credits
About the Author
About the Co-Authors
Acknowledgements
About the Reviewers
Preface
Index

Constraints


A Constraint controls the input value of a property. Constraints can be used to validate input values, and to ensure the use of certain predefined values for the properties. Constraints are defined separately from content types and aspects, and are referenced within a property type definition.

Constraint types

Alfresco provides four types of constraints out of the box, as follows. Apart from these four, the custom constraints can be defined by using Java Programming Language.

  • REGEX: ensures that a property value matches a defined regular expression pattern

  • LIST: ensures that a property value is picked up from a list of predefined values

  • MINMAX: ensures that the given property value falls within a defined numeric range

  • LENGTH: ensures that the given property value falls within a defined character length range

REGEX

The following REGEX expression ensures that the property "filename" does not match the defined regular expression pattern. This constraint thus ensures that the file...