Thankfully, OpenCms can be used by Java developers to create sophisticated add-ons and customizations that extend the power of OpenCms virtually unlimited directions. Targeting version 7 of OpenCms, this book is for Java developers interested in extending and further customize OpenCms through the Java API. Some of the common tasks covered are building OpenCms, XML asset type development, templates, user development, modules and setup roles, and search integration. What you will learn from this book? An overview of the development on OpenCms OpenCms architectureDeveloping environmentWorking with templates systemUsing APIExtending templates and use nuts in the OpenCms template that libraryTemplate codeUsing cachingUnderstanding collectorsUnderstanding JSTL tags and create OpenCms resources modulesCreating typesRules unstructured content to create a scheme filesRegistering content type with OpenCms OpenCmsUser Interface Widgets and content optionsNesting typesUsing validating XML editor to edit the configuration filesUsing Eclipse and WebDAV module for OpenCms developmentConfiguring SearchLooking in search indexesSupporting looking at templatesUnderstanding securityAdding OpenCms user registration and web publishing loginsProgrammatic users of the site featuresDesigning contentProviding customization and creating Custom OpenCms OpenCms widgetsUsing string message to localizationAdding RSS support for OpenCmsAdding Administration List PointsUsing OpenCms OpenCms and Dialogue classesProgrammatically use OpenCms widgets Approach This book is clear, practical tutorial to OpenCms development. This will take you through developing an example site, which describes the key concepts of OpenCms development with examples at every stage.