To format only a portion of the file, select it and press the same key combination.Īfter this, select Window > Preferences, and open up the configuration for Java > Code Style > Code Templates. To reformat a file, press Ctrl+Shift+F while inside that file. DefaultObservationManager.java ( main sources| tests)Ĭonfiguring your IDE to use the XWiki code style EclipseĪfter this, select Window > Preferences, and open up the configuration for Java > Code Style > Code Formatter.We're asking new code to follow the new style and then once a Java file is compliant, to edit xwiki/core/pom.xml and add it there so that we cannot regress.įor examples of "clean" class see the following example and its unit tests:.The checked files are defined in xwiki/core/pom.xml (bottom of file). We're only enforcing the code style in the code that has been moved to the new code style.However the decision to follow this code style and enforce it was only made long after the beginning of the project and not all the code base has been moved to this new code style. This is part of the automated checks, see there for ways to skip if necessary at times. Our build (the Maven one) is configured to fail on violations. We're using Checkstyle ( checkstyle.xml) to ensure compliance of the code. The XWiki project is following a specific coding style for Java code. Equals/HashCode and ToString implementations. Do not duplicate method comments with parameters comments.Make sure your code is backward compatible.Configuring your IDE to use the XWiki code style.Any type that is to be serialized to persistent storage or over the Geode network protocols should implement one of Geode's alternative serialization methods, SerializableFixedID, DataSerializable, etc. Use of java.io.Serializable should be avoided unless absolutely necessary for integration with 3rd party libraries. Especially for an existing file as it makes it difficult to know the exact difference by comparing revisions. For instance, the arrangement of "import" statements will be incorrect if you use the Eclipse formatter profile.Īvoid using reformatting commands for an entire file while changing a part of the file. While IntelliJ supports importing of Eclipse formatter profiles you should not use this option because it does not properly configure IntelliJ for Geode. Push the "Manage" button and then the "Import." button The following examples illustrate how this rule applies to each of the various Java definition and control constructs. Locate the opening brace '' of a block on a line of its own, aligned with the first character of the line that introduced the block. Curly BracesĪlways use braces, even around one-line `if`, `else` and other control statements. Use spaces, not hard tabs, for indentation. Improve code readability by grouping individual statements into block statements and uniformly indent the content of each block to set off its contents from the surrounding code. Limit your source code line length to 100 characters. Some source code files contain UTF-8 characters and will be damaged if you modify them with an editor that does not support UTF-8 encoding. Use UTF-8 file encoding and Unix line separators. Formatter settings for Eclipse and IntelliJ are covered first, followed by more detailed descriptions. Most of the formatting conventions for this project center around the use of white space and the placement of brackets. In order to create a source base that has a unified appearance and is easy to read and comprehend we include conventions for formatting Java code. This includes code documentation (javadocs). Rewriting old code simply to change its style may result in the introduction of costly yet avoidable defects.Īpply these rules to any code you write, not just code destined for production or only if it is visible to the user. The use of different styles within a single source file produces code that is more difficult to read and comprehend. Do not introduce a new coding style in a modification, and do not attempt to rewrite the old software just to make it match the new style. When modifying existing software, your changes should follow the style of the original code. al.Īs an open-source project we are following the Google Java Style guide, emphasizing a few of the more important points in this page. Java code for the Geode project was originally developed using conventions based on The Elements of Java Style, by A.
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