It describes a web service, actions that can be performed, and related messages. You can put Request-response is the most common type of operation, but WSDL defines fourtypes: Types Define One-way This action accepts a message, but does not return a response. Request-response This operation accepts a request and returns a response Solicit-response This action sends a request and waits for a response. Notification This action sends a message, but does not wait for a response. An example of an one-way operation: In this example, the port “glossaryTerms” defines an one-way operation named “setTerm”. This “setTerm” operation accepts input from the new glossary item message,which uses a message named “newTermValues” with the input parameters “term” and “value”. However, no output is defined for this operation. One In this example, the port “glossaryTerms” defines a request-response operation named “getTerm”. The “getTerm” operation requests an input message named “getTermRequest”with a parameter named “term” and returns an output message named “getTermResponse” with a parameter named “value”.
In recent years, Geographic Information Systems (GIS) have undergone rapid development in both theoretical and practical dimensions. GIS has been widely applied for modeling and decision-making support across various fields such as urban management, regional planning, and environmental remediation, establishing geographic information as a vital component of the information era. The introduction of the “Digital Earth” concept has further accelerated the advancement of GIS, which serves as its technical foundation. Concurrently, scholars have been dedicated to theoretical research in areas like spatial cognition, spatial data uncertainty, and the formalization of spatial relationships. This reflects the dual nature of GIS as both an applied technology and an academic discipline, with the two aspects forming a mutually reinforcing cycle of progress. 6.4.1. WSDL port ¶
6.4.2. Operation type ¶
6.4.3. One-Way operation ¶
Example ¶
<messagename="newTermValues"><partname="term"type="xs:string"/><partname="value"type="xs:string"/>message><portTypename="glossaryTerms"><operationname="setTerm"><inputname="newTerm"message="newTermValues"/>operation>portType>
6.4.4.
Request-Response operation ¶ request-response examples of operations: Example ¶
<messagename="getTermRequest"><partname="term"type="xs:string"/>message><messagename="getTermResponse"><partname="value"type="xs:string"/>message><portTypename="glossaryTerms"><operationname="getTerm"><inputmessage="getTermRequest"/><outputmessage="getTermResponse"/>operation>portType>
Principles, Technologies, and Methods of Geographic Information Systems
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