Coinjema allows for pluggable script "Evaluators" to be registered that Coinjema then uses to create injection objects for your classes. Currently there are 4 evaluators, and they are:

• .groovy - evaluates groovy script and returns the result object. ".groovy" refers to the file extension that triggers the use of this evaluator.
• .groovyClass - evaluates a groovy file as a class defined in groovy. Instantiates the class and returns the new object.
• .groovySql - evaluates a groovy script to a String which is then treated as an SQL statement and executed. A datasource is expected to be defined in a coinjema config file named "coinjema.dataSource". Most likely using the groovy evaluator (ie "coinjema.dataSource.groovy"). The results of the SQL query are converted into a single object (if a single row and column are returned), or a List (if a single column but multiple rows), or a Map<String,Object> (if multiple columns and a single row are returned) or a List of Map<String,Object>.
• .properties - reads the file as a standard properties file and returns an object of type java.util.Properties. See also the .inherit
• .gproperties - reads the file as a standard properties file, but tries to interpret each key and value as a groovy script that returns a String. Returns an object of type java.util.Properties. See also the .inherit
• .txt - reads the file contents as a String object
• .jser - reads the file as a serialized Java object. The object is deserialized, and automatically dependency-injected by Coinjema¹
• .compmap - properties file format that is translated into a Map object with String keys pointing to shared object dependencies. Kind of like a collection of .redirect
• .redirect - redirects to the injection object created by a different file. See More Information

Script/Config files can have an extra extension tacked on after the above file format extension. These extensions are

• .inherit - .properties and .gproperties files can be inherited, meaning that a property file in a child context will first load the parent properties, and then overwrite them with the child properties. The child properties file specifies the ".inherit" extension, and inheriting can be done through multiple levels.
• .perClass - Normally Coinjema caches one instance of a dependency for all objects that need it. If the .perClass extension is used, then Coinjema will cache the dependency objects on a per class basis, so that two different classes can receive two different dependency objects, whereas two instances of the same class will receive the same dependency.
• .perObject - Like .perClass, but now Coinjema will make sure every object receives it's own instance of the dependency object.