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--- 01_user_documentation:06_graph:02_node:01_attribute [2025/01/30 10:55] – created gaetan
+++ 01_user_documentation:06_graph:02_node:01_attribute [2025/10/07 16:44] (current) – gaetan
@@ Line 1: / Line 1: @@
 ====== Attribute ======
-An attribute is a node field.
+Persistent fields (in the java sense) of a Node are attributes. Basically, all fields that are NOT ''static'', ''const'' nor ''transient'' are attributes. The [[:01_user_documentation:06_graph:07_persistence|persistence]] management of the Node require each attribute to have accessors, which are declared in the node.
+===== Accessor =====
+Attribute accessors are the methods to get and set the attribute value. The accessors of a Node are automatically resolved by the compiler with the syntax:
+<code java>
+Sphere s; // has an attribute diameter
+s[diameter] = 5; // automatically resolve the setter
+float d = s[diameter]; // automatically resolve the getter
+</code>
+===== Editor =====
+Additionally, some attributes can be edited with the [[:|attribute editor]]. The attribute needs to be [[:01_user_documentation:03_interacting_with_groimp:02_panels:04_attribute_editor:02_property_editors|editable]] and not ''hidden''
+{{page>01_user_documentation:03_interacting_with_groimp:02_panels:04_attribute_editor&noheader}}