public class DesignForExtensionCheck extends Check
More specifically, it enforces a programming style where superclasses provide empty "hooks" that can be implemented by subclasses.
The exact rule is that non-private, non-static methods in non-final classes (or classes that do not only have private constructors) must either be
This protects superclasses against being broken by subclasses. The downside is that subclasses are limited in their flexibility, in particular they cannot prevent execution of code in the superclass, but that also means that subclasses can't forget to call their super method.
Modifier and Type | Field and Description |
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static String |
MSG_KEY
A key is pointing to the warning message text in "messages.properties"
file.
|
Constructor and Description |
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DesignForExtensionCheck() |
Modifier and Type | Method and Description |
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int[] |
getAcceptableTokens()
The configurable token set.
|
int[] |
getDefaultTokens()
Returns the default token a check is interested in.
|
int[] |
getRequiredTokens()
The tokens that this check must be registered for.
|
void |
visitToken(DetailAST ast)
Called to process a token.
|
beginTree, destroy, finishTree, getClassLoader, getFileContents, getLine, getLines, getTabWidth, getTokenNames, init, isCommentNodesRequired, leaveToken, log, log, setClassLoader, setFileContents, setMessages, setTabWidth, setTokens
getCustomMessages, getId, getMessageBundle, getSeverity, getSeverityLevel, log, setId, setSeverity
configure, contextualize, finishLocalSetup, getConfiguration, setupChild
public static final String MSG_KEY
public DesignForExtensionCheck()
public int[] getDefaultTokens()
Check
getDefaultTokens
in class Check
TokenTypes
public int[] getAcceptableTokens()
Check
getAcceptableTokens
in class Check
TokenTypes
public int[] getRequiredTokens()
Check
getRequiredTokens
in class Check
TokenTypes
public void visitToken(DetailAST ast)
Check
visitToken
in class Check
ast
- the token to processCopyright © 2001–2016. All rights reserved.