HideUtilityClassConstructorCheck (sevntu-checks 1.44.1 API)

java.lang.Object
- com.puppycrawl.tools.checkstyle.api.AutomaticBean
- - com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter
  - - com.puppycrawl.tools.checkstyle.api.AbstractCheck
    - - com.github.sevntu.checkstyle.checks.design.HideUtilityClassConstructorCheck

All Implemented Interfaces:

com.puppycrawl.tools.checkstyle.api.Configurable, com.puppycrawl.tools.checkstyle.api.Contextualizable
```
public class HideUtilityClassConstructorCheck
extends com.puppycrawl.tools.checkstyle.api.AbstractCheck
```
Make sure that utility classes (classes that contain only static methods) do not have a public constructor.
Rationale: Instantiating utility classes does not make sense. A common mistake is forgetting to hide the default constructor.

Since:

1.8.0

Version:

$Revision: 1.12 $

Author:

lkuehne

Nested Class Summary
- Nested classes/interfaces inherited from class com.puppycrawl.tools.checkstyle.api.AutomaticBean
  com.puppycrawl.tools.checkstyle.api.AutomaticBean.OutputStreamOptions

Field Summary

Fields
Modifier and Type Field Description

static String MSG_KEY
Warning message key.

Constructor Summary

Constructors
Constructor Description

HideUtilityClassConstructorCheck()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`int[]`	`getAcceptableTokens()`
`int[]`	`getDefaultTokens()`
`int[]`	`getRequiredTokens()`
`void`	`visitToken(com.puppycrawl.tools.checkstyle.api.DetailAST ast)`

Methods inherited from class com.puppycrawl.tools.checkstyle.api.AbstractCheck
beginTree, clearViolations, destroy, finishTree, getFileContents, getFilePath, getLine, getLineCodePoints, getLines, getTabWidth, getTokenNames, getViolations, 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_KEY
```
public static final String MSG_KEY
```
    Warning message key.
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - HideUtilityClassConstructorCheck
```
public HideUtilityClassConstructorCheck()
```
- Method Detail
  - getDefaultTokens
```
public int[] getDefaultTokens()
```
    Specified by:
    
    getDefaultTokens in class com.puppycrawl.tools.checkstyle.api.AbstractCheck
  - getAcceptableTokens
```
public int[] getAcceptableTokens()
```
    Specified by:
    
    getAcceptableTokens in class com.puppycrawl.tools.checkstyle.api.AbstractCheck
  - getRequiredTokens
```
public int[] getRequiredTokens()
```
    Specified by:
    
    getRequiredTokens in class com.puppycrawl.tools.checkstyle.api.AbstractCheck
  - visitToken
```
public void visitToken(com.puppycrawl.tools.checkstyle.api.DetailAST ast)
```
    Overrides:
    
    visitToken in class com.puppycrawl.tools.checkstyle.api.AbstractCheck