com.puppycrawl.tools.checkstyle.checks.javadoc

Class JavadocTypeCheck

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.JavadocTypeCheck

All Implemented Interfaces:

Configurable, Contextualizable

public class JavadocTypeCheck
extends AbstractCheck

Checks the Javadoc comments for type definitions. By default, does not check for author or version tags. The scope to verify is specified using the Scope class and defaults to Scope.PRIVATE. To verify another scope, set property scope to one of the Scope constants. To define the format for an author tag or a version tag, set property authorFormat or versionFormat respectively to a regular expression.

Does not perform checks for author and version tags for inner classes, as they should be redundant because of outer class.

Error messages about type parameters and record components for which no param tags are present can be suppressed by defining property allowMissingParamTags.

• Property scope - Specify the visibility scope where Javadoc comments are checked. Type is com.puppycrawl.tools.checkstyle.api.Scope. Default value is private.
• Property excludeScope - Specify the visibility scope where Javadoc comments are not checked. Type is com.puppycrawl.tools.checkstyle.api.Scope. Default value is null.
• Property authorFormat - Specify the pattern for @author tag. Type is java.util.regex.Pattern. Default value is null.
• Property versionFormat - Specify the pattern for @version tag. Type is java.util.regex.Pattern. Default value is null.
• Property allowMissingParamTags - Control whether to ignore violations when a class has type parameters but does not have matching param tags in the Javadoc. Type is boolean. Default value is false.
• Property allowUnknownTags - Control whether to ignore violations when a Javadoc tag is not recognised. Type is boolean. Default value is false.
• Property allowedAnnotations - Specify the list of annotations that allow missed documentation. Only short names are allowed, e.g. Generated. Type is java.lang.String[]. Default value is Generated.
• Property tokens - tokens to check Type is java.lang.String[]. Validation type is tokenSet. Default value is: INTERFACE_DEF, CLASS_DEF, ENUM_DEF, ANNOTATION_DEF, RECORD_DEF.

To configure the default check:

 <module name="JavadocType"/>
 

To configure the check for public scope:

 <module name="JavadocType">
   <property name="scope" value="public"/>
 </module>
 

To configure the check for an @author tag:

 <module name="JavadocType">
   <property name="authorFormat" value="\S"/>
 </module>
 

To configure the check for a CVS revision version tag:

 <module name="JavadocType">
   <property name="versionFormat" value="\$Revision.*\$"/>
 </module>
 

To configure the check for private classes only:

 <module name="JavadocType">
   <property name="scope" value="private"/>
   <property name="excludeScope" value="package"/>
 </module>
 

Example that allows missing comments for classes annotated with @SpringBootApplication and @Configuration:

 @SpringBootApplication // no violations about missing comment on class
 public class Application {}

 @Configuration // no violations about missing comment on class
 class DatabaseConfiguration {}
 

Use following configuration:

 <module name="JavadocType">
   <property name="allowedAnnotations" value="SpringBootApplication,Configuration"/>
 </module>
 

Parent is com.puppycrawl.tools.checkstyle.TreeWalker

Violation Message Keys:

• javadoc.unknownTag
• javadoc.unusedTag
• javadoc.unusedTagGeneral
• type.missingTag
• type.tagFormat

Since:

3.0

Nested Class Summary

Nested classes/interfaces inherited from class com.puppycrawl.tools.checkstyle.api.AutomaticBean

AutomaticBean.OutputStreamOptions

Field Summary

Fields

Modifier and Type	Field and Description
static java.lang.String	MSG_MISSING_TAG A key is pointing to the warning message text in "messages.properties" file.
static java.lang.String	MSG_TAG_FORMAT A key is pointing to the warning message text in "messages.properties" file.
static java.lang.String	MSG_UNKNOWN_TAG A key is pointing to the warning message text in "messages.properties" file.
static java.lang.String	MSG_UNUSED_TAG A key is pointing to the warning message text in "messages.properties" file.
static java.lang.String	MSG_UNUSED_TAG_GENERAL A key is pointing to the warning message text in "messages.properties" file.

Constructor Summary

Constructors

Constructor and Description
JavadocTypeCheck()

Method Summary

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	setAllowedAnnotations(java.lang.String... userAnnotations) Setter to specify the list of annotations that allow missed documentation.
void	setAllowMissingParamTags(boolean flag) Setter to control whether to ignore violations when a class has type parameters but does not have matching param tags in the Javadoc.
void	setAllowUnknownTags(boolean flag) Setter to control whether to ignore violations when a Javadoc tag is not recognised.
void	setAuthorFormat(java.util.regex.Pattern pattern) Setter to specify the pattern for @author tag.
void	setExcludeScope(Scope excludeScope) Setter to specify the visibility scope where Javadoc comments are not checked.
void	setScope(Scope scope) Setter to specify the visibility scope where Javadoc comments are checked.
void	setVersionFormat(java.util.regex.Pattern pattern) Setter to specify the pattern for @version tag.
void	visitToken(DetailAST ast) Called to process a token.

Methods inherited from class com.puppycrawl.tools.checkstyle.api.AbstractCheck

beginTree, clearMessages, destroy, finishTree, getFileContents, getLine, getLines, getMessages, getTabWidth, getTokenNames, init, isCommentNodesRequired, leaveToken, log, log, log, setFileContents, setTabWidth, setTokens

Methods inherited from class com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter

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

Methods inherited from class com.puppycrawl.tools.checkstyle.api.AutomaticBean

configure, contextualize, getConfiguration, setupChild

Methods inherited from class java.lang.Object

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

Field Detail

MSG_UNKNOWN_TAG

public static final java.lang.String MSG_UNKNOWN_TAG

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

See Also:

Constant Field Values

MSG_TAG_FORMAT

public static final java.lang.String MSG_TAG_FORMAT

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

See Also:

Constant Field Values

MSG_MISSING_TAG

public static final java.lang.String MSG_MISSING_TAG

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

See Also:

Constant Field Values

MSG_UNUSED_TAG

public static final java.lang.String MSG_UNUSED_TAG

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

See Also:

Constant Field Values

MSG_UNUSED_TAG_GENERAL

public static final java.lang.String MSG_UNUSED_TAG_GENERAL

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

See Also:

Constant Field Values

Constructor Detail

JavadocTypeCheck

public JavadocTypeCheck()

Method Detail

setScope

public void setScope(Scope scope)

Setter to specify the visibility scope where Javadoc comments are checked.

Parameters:

scope - a scope.

setExcludeScope

public void setExcludeScope(Scope excludeScope)

Setter to specify the visibility scope where Javadoc comments are not checked.

Parameters:

excludeScope - a scope.

setAuthorFormat

public void setAuthorFormat(java.util.regex.Pattern pattern)

Setter to specify the pattern for @author tag.

Parameters:

pattern - a pattern.

setVersionFormat

public void setVersionFormat(java.util.regex.Pattern pattern)

Setter to specify the pattern for @version tag.

Parameters:

pattern - a pattern.

setAllowMissingParamTags

public void setAllowMissingParamTags(boolean flag)

Setter to control whether to ignore violations when a class has type parameters but does not have matching param tags in the Javadoc.

Parameters:

flag - a Boolean value

setAllowUnknownTags

public void setAllowUnknownTags(boolean flag)

Setter to control whether to ignore violations when a Javadoc tag is not recognised.

Parameters:

flag - a Boolean value

setAllowedAnnotations

public void setAllowedAnnotations(java.lang.String... userAnnotations)

Setter to specify the list of annotations that allow missed documentation. Only short names are allowed, e.g. Generated.

Parameters:

userAnnotations - user's value.

getDefaultTokens

public int[] getDefaultTokens()

Description copied from class: AbstractCheck

Returns the default token a check is interested in. Only used if the configuration for a check does not define the tokens.

Specified by:

getDefaultTokens in class AbstractCheck

Returns:

the default tokens

See Also:

TokenTypes

getAcceptableTokens

public int[] getAcceptableTokens()

Description copied from class: AbstractCheck

The configurable token set. Used to protect Checks against malicious users who specify an unacceptable token set in the configuration file. The default implementation returns the check's default tokens.

Specified by:

getAcceptableTokens in class AbstractCheck

Returns:

the token set this check is designed for.

See Also:

TokenTypes

getRequiredTokens

public int[] getRequiredTokens()

Description copied from class: AbstractCheck

The tokens that this check must be registered for.

Specified by:

getRequiredTokens in class AbstractCheck

Returns:

the token set this must be registered for.

See Also:

TokenTypes

visitToken

public void visitToken(DetailAST ast)

Description copied from class: AbstractCheck

Called to process a token.

Overrides:

visitToken in class AbstractCheck

Parameters:

ast - the token to process