public class MissingCtorCheck extends AbstractCheck
Checks that classes (except abstract ones) define a constructor and don't rely on the default one.
To configure the check:
<module name="MissingCtor"/>
Example:
class ExampleOk { // OK
private int a;
ExampleOk(int a) {
this.a = a;
}
}
class ExampleDefaultCtor { // OK
private String s;
ExampleDefaultCtor() {
s = "foobar";
}
}
class InvalidExample { // violation, class must have a constructor.
public void test() {}
}
abstract class AbstractExample { // OK
public abstract void test() {}
}
Parent is com.puppycrawl.tools.checkstyle.TreeWalker
Violation Message Keys:
missing.ctor
AutomaticBean.OutputStreamOptions| Modifier and Type | Field and Description |
|---|---|
static String |
MSG_KEY
A key is pointing to the warning message text in "messages.properties"
file.
|
| Constructor and Description |
|---|
MissingCtorCheck() |
| Modifier and Type | Method and Description |
|---|---|
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, clearMessages, destroy, finishTree, getFileContents, getLine, getLines, getMessages, getTabWidth, getTokenNames, init, isCommentNodesRequired, leaveToken, log, log, log, setFileContents, setTabWidth, setTokensfinishLocalSetup, getCustomMessages, getId, getMessageBundle, getSeverity, getSeverityLevel, setId, setSeverityconfigure, contextualize, getConfiguration, setupChildpublic static final String MSG_KEY
public MissingCtorCheck()
public int[] getDefaultTokens()
AbstractCheckgetDefaultTokens in class AbstractCheckTokenTypespublic int[] getAcceptableTokens()
AbstractCheckgetAcceptableTokens in class AbstractCheckTokenTypespublic int[] getRequiredTokens()
AbstractCheckgetRequiredTokens in class AbstractCheckTokenTypespublic void visitToken(DetailAST ast)
AbstractCheckvisitToken in class AbstractCheckast - the token to processCopyright © 2001–2020. All rights reserved.