Source code
package org.springframework.web.socket.sockjs.frame;
/**
* Applies a transport-specific format to the content of a SockJS frame resulting
* in a content that can be written out. Primarily for use in HTTP server-side
* transports that push data.
*
* <p>Formatting may vary from simply appending a new line character for XHR
* polling and streaming transports, to a jsonp-style callback function,
* surrounding script tags, and more.
*
* <p>For the various SockJS frame formats in use, see implementations of
* {@link org.springframework.web.socket.sockjs.transport.handler.AbstractHttpSendingTransportHandler#getFrameFormat(org.springframework.http.server.ServerHttpRequest) AbstractHttpSendingTransportHandler.getFrameFormat}
*
* @author Rossen Stoyanchev
* @since 4.0
*/
public interface SockJsFrameFormat {
String update(SockJsFrame event);
}
Run 1
The code is an interface with a single method, making it inherently readable. The structure is logical and clear, with a well-organized Javadoc that explains the purpose and context of the interface. There is no nesting or complex control flow. The naming is clear ('SockJsFrameFormat', 'update', 'event'), and the intent is unambiguous. The code is concise, with no unnecessary length. Action granularity is appropriate: the single method signature fits on one line. The reading flow is natural, introducing the interface, its purpose, and its single responsibility. Minor deduction only because the Javadoc is lengthy for such a small interface, but it is informative and not excessive.
Run 2
The code is an interface with clear, consistent naming and a single, well-defined method. Javadoc documentation is concise, purposeful, and explains when and why formatting is used, including concrete use cases. There is no nesting, no unnecessary length, and one action per method signature line. Reading flow is logical: package, import-free (none needed), Javadoc, interface declaration, method. The only minor deduction is that the method name 'update' could be slightly more descriptive (e.g., 'formatFrame'), but overall readability is excellent.
Run 3
This is a very readable interface definition. The code structure is logical and straightforward, with a single clear method. Nesting is nonexistent since it is an interface. The Javadoc clearly explains the purpose and usage context, and the method name 'update' combined with the parameter type 'SockJsFrame' communicates intent well, though a method name like 'format' could be marginally clearer. The code is concise with no unnecessary elements. Action granularity and reading flow are excellent—the single line method declaration is natural and intentional. Minor deductions come from the slightly generic 'update' method name and a Javadoc link that is somewhat verbose, but they do not meaningfully reduce readability.
Run 1
Code Structure: A well-organized interface with one focused method and documentation directly above it. Nesting: No nested logic, making the code easy to scan. Clarity of intent: The Javadoc clearly explains transport-specific frame formatting, but the generic method name 'update' and parameter name 'event' are less descriptive than 'format' and 'frame'; method-level documentation could clarify the returned string. Code length: The implementation is minimal, although the long Javadoc link slightly reduces readability. Action granularity: The single method declaration occupies its own line. Reading flow: The conventional package-documentation-interface-method order is natural and coherent.
Run 2
Code Structure: A logically organized interface with a single, focused method. Nesting: No nested control flow or unnecessary structural complexity. Clarity of intent: The interface name and Javadoc clearly explain transport-specific frame formatting, though the generic method name 'update' and parameter name 'event' are less precise than 'format' and 'frame'. Code length: The implementation is minimal; the documentation is proportionate and useful, although the long Javadoc link is slightly cumbersome. Action granularity: The method declaration occupies its own line and expresses one operation. Reading flow: The conventional package, documentation, interface, and method order makes the code easy to scan.
Run 3
Code Structure: A logically organized interface with one method and supporting documentation. Nesting: No nested control flow or unnecessary structural complexity. Clarity of intent: The interface name and Javadoc clearly explain transport-specific frame formatting, although update is less descriptive than format, and event is less precise than frame. Code length: The implementation is minimal; the documentation is useful but includes a long, visually cumbersome link. Action granularity: The single method declaration occupies its own line, with no combined actions. Reading flow: The package, documentation, interface, and method follow a natural Java layout. Overall, highly readable with minor naming and documentation improvements possible.