Adobe 38039927 Extended User Guide - Page 264

ADOBE FIREWORKS CS3 260 Extending Guide All other object IDs are generated when the object is created, and may or may not have the same IDs between application invocations. Data node The data node is the most important type of XML node in RPC. Methods called through the func operation need to act on actual data or references to server objects identified in data nodes. The data nodes are used as parameters and parts of replies. There are several types of data nodes, as described in the following table. Data type Node name array array Boolean bool dictionary dict float double integer int null null Example Description An array data type. It is simply a container node for the other data nodes. There are no restrictions on how many subelements it can contain or which types it can contain. The contained data nodes may be of the same type or of different types. No additional attributes have to be added to the contained nodes. The Boolean data type. It can contain either true or false and nothing else. Note that the values are case sensitive. A dictionary data type. Like the array data type, it is simply a container for other data nodes. Each direct child node of a dictionary node must contain an additional key attribute. The key attribute is a string and must be unique for the given dictionary node. The key string must start with a letter or an underscore (_) and may followed by numbers, letters, or underscores. Dictionary nodes can be used to pass objects by value. The floating-point data type. It can contain any floating-point (real) number within the range 1.7e +/- 308. The integer data type. It can contain any signed integer in the range -2,147,483,648 through 2,147,483,647. The null type has only one value: null. The null type automatically coerces into the string type, array type, dictionary type, and the server object type. The null type cannot have any attributes or sub-elements.