Class NonEmptyAtclauseDescriptionCheck

java.lang.Object

com.puppycrawl.tools.checkstyle.api.AutomaticBean

com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter

com.puppycrawl.tools.checkstyle.api.AbstractCheck

com.puppycrawl.tools.checkstyle.checks.javadoc.AbstractJavadocCheck

com.puppycrawl.tools.checkstyle.checks.javadoc.NonEmptyAtclauseDescriptionCheck

All Implemented Interfaces:

Configurable, Contextualizable

public class NonEmptyAtclauseDescriptionCheck
extends AbstractJavadocCheck

Checks that the block tag is followed by description.

• Property violateExecutionOnNonTightHtml - Control when to print violations if the Javadoc being examined by this check violates the tight html rules defined at Tight-HTML Rules. Type is boolean. Default value is false.
• Property javadocTokens - javadoc tokens to check Type is java.lang.String[]. Validation type is tokenSet. Default value is PARAM_LITERAL, RETURN_LITERAL, THROWS_LITERAL, EXCEPTION_LITERAL, DEPRECATED_LITERAL.

To configure the default check that will check @param, @return, @throws, @deprecated:

<module name="NonEmptyAtclauseDescription"/>

Example:

class Test
{
/**
* Violation for param "b" and at tags "deprecated", "throws".
* @param a Some javadoc // OK
* @param b
* @deprecated
* @throws Exception
*/
public int method(String a, int b) throws Exception
{
return 1;
}
}

To configure the check to validate only @param and @return tags:

<module name="NonEmptyAtclauseDescription">
  <property name="javadocTokens" value="PARAM_LITERAL,RETURN_LITERAL"/>
</module>

Example:

class Test
{
/**
* Violation for param "b". Tags "deprecated", "throws" are ignored.
* @param a Some javadoc // OK
* @param b
* @deprecated
* @throws Exception
*/
public int method(String a, int b) throws Exception
{
return 1;
}
}

Parent is com.puppycrawl.tools.checkstyle.TreeWalker

Violation Message Keys:

• javadoc.missed.html.close
• javadoc.parse.rule.error
• javadoc.wrong.singleton.html.tag
• non.empty.atclause

Since:

6.0

Nested Class Summary

Nested classes/interfaces inherited from class AutomaticBean

AutomaticBean.OutputStreamOptions

Field Summary

Fields

Modifier and Type	Field	Description
static final String	MSG_KEY	A key is pointing to the warning message text in "messages.properties" file.

Fields inherited from class AbstractJavadocCheck

MSG_JAVADOC_MISSED_HTML_CLOSE, MSG_JAVADOC_PARSE_RULE_ERROR, MSG_JAVADOC_WRONG_SINGLETON_TAG

Constructor Summary

Constructors

Constructor	Description
NonEmptyAtclauseDescriptionCheck()

Method Summary

Modifier and Type	Method	Description
int[]	getDefaultJavadocTokens()	Returns the default javadoc token types a check is interested in.
private static boolean	hasOnlyEmptyText(DetailNode description)	Tests if description node is empty (has only new lines and blank strings).
private static boolean	isEmptyTag(DetailNode tagNode)	Tests if block tag is empty.
void	visitJavadocToken(DetailNode ast)	Called to process a Javadoc token.

Methods inherited from class AbstractJavadocCheck

acceptJavadocWithNonTightHtml, beginJavadocTree, beginTree, destroy, finishJavadocTree, finishTree, getAcceptableJavadocTokens, getAcceptableTokens, getBlockCommentAst, getDefaultTokens, getRequiredJavadocTokens, getRequiredTokens, init, isCommentNodesRequired, leaveJavadocToken, setJavadocTokens, setViolateExecutionOnNonTightHtml, visitToken

Methods inherited from class AbstractCheck

clearViolations, getFileContents, getLine, getLineCodePoints, getLines, getTabWidth, getTokenNames, getViolations, leaveToken, log, log, log, setFileContents, setTabWidth, setTokens

Methods inherited from class AbstractViolationReporter

finishLocalSetup, getCustomMessages, getId, getMessageBundle, getSeverity, getSeverityLevel, setId, setSeverity

Methods inherited from class AutomaticBean

configure, contextualize, getConfiguration, setupChild

Methods inherited from class Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

MSG_KEY

public static final String MSG_KEY

A key is pointing to the warning message text in "messages.properties" file.

See Also:

• Constant Field Values

Constructor Details

NonEmptyAtclauseDescriptionCheck

public NonEmptyAtclauseDescriptionCheck()

Method Details

getDefaultJavadocTokens

public int[] getDefaultJavadocTokens()

Description copied from class: AbstractJavadocCheck

Returns the default javadoc token types a check is interested in.

Specified by:

getDefaultJavadocTokens in class AbstractJavadocCheck

Returns:

the default javadoc token types

See Also:

• JavadocTokenTypes

visitJavadocToken

public void visitJavadocToken(DetailNode ast)

Description copied from class: AbstractJavadocCheck

Called to process a Javadoc token.

Specified by:

visitJavadocToken in class AbstractJavadocCheck

Parameters:

ast - the token to process

isEmptyTag

private static boolean isEmptyTag(DetailNode tagNode)

Tests if block tag is empty.

Parameters:

tagNode - block tag.

Returns:

true, if block tag is empty.

hasOnlyEmptyText

private static boolean hasOnlyEmptyText(DetailNode description)

Tests if description node is empty (has only new lines and blank strings).

Parameters:

description - description node.

Returns:

true, if description node has only new lines and blank strings.