There is quite well-known example in item 4, but another known annotations which are used to annotations (and whose implementations has to have line) are and itself. Some already existing and well-known example of its usage would be great too.Especially, if you want to customize annotations with your annotation then you need to include ANNOTATION_TYPE to annotation value array to your custom annotation class. Main reason why to annotate annotations is to make possible using annotations in annotation (definition) class. If you look at the source codes of the common Java annotations, you see often this code pattern: TheAnnotationįor example, ANNOTATION_TYPE Constraint ). Does not include evaluation or criticism of the source. They are: Descriptive annotations describe what the source is addressing, what issues are being looked at, and other special features that supplement the text (appendices, etc.). Simply put: when there is need to apply annotation to another annotation. Before jumping into image annotations, it is useful to know about the different annotation types that exist so that you pick the right type for your use-case. There are three types of annotations you can use in your annotated bibliography. Note AnnotationType returns null if the annotation was incorrectly constructed by using a parameterless constructor without parameters. Combination annotations summarize and evaluate the work. Evaluative annotations criticize or include value judgments of the work. Different types of annotations serve different purposes: Descriptive annotations provide a summary of the work. it is a tool that allows to extend the use of annotations. The returned annotation type is the XmlQualifiedName name passed as a parameter to the Annotation constructor. The purpose of an annotated bibliography is to present an overview of the published literature on a topic. Public static final String LAYOUT_INFLATER_SERVICE = "layout_inflater" Ĭode inspector will treat and in the same way as a result we can create as much named StringDef's as we need and override set of constants. Public static final String WINDOW_SERVICE = "window" Public static final String POWER_SERVICE = "power" WINDOW_SERVICE, LAYOUT_INFLATER_SERVICE}) If your parameter supports multiple resource types, you can put more than one of these annotations on a given parameter. That means, you can define your own custom annotations that are an amalgamation of many annotations combined into one annotation to create composed annotations.Ī good example from Android world is StringDefĭenotes that the annotated String element, represents a logical type and that its value should be one of the explicitly named constants. Annotations for the other resource types, such as DrawableRes, DimenRes, ColorRes, and InterpolatorRes can be added using the same annotation format and run during the code inspection. Each annotation annotated by is called Meta-annotation.
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