## com.puppycrawl.tools.checkstyle.checks.metrics
Class BooleanExpressionComplexityCheck

    java.lang.Object
      com.puppycrawl.tools.checkstyle.api.AutomaticBean
          com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter
              com.puppycrawl.tools.checkstyle.api.Check
                  com.puppycrawl.tools.checkstyle.checks.metrics.BooleanExpressionComplexityCheck

All Implemented Interfaces:
  Configurable, Contextualizable

    public final class BooleanExpressionComplexityCheck

extends Check

Restricts nested boolean operators (&&, ||, &, | and ^) to a specified depth (default = 3).

Author:
  Simon Harris, o_sukhodolsky

Constructor Summary
`BooleanExpressionComplexityCheck()` Creates new instance of the check.

Method Summary
`int[]` `getDefaultTokens()` Returns the default token a check is interested in.
`int` `getMax()` Getter for maximum allowed complexity.
`int[]` `getRequiredTokens()` The tokens that this check must be registered for.
`void` `leaveToken(DetailAST aAST)` Called after all the child nodes have been process.
`void` `setMax(int aMax)` Setter for maximum allowed complexity.
`void` `visitToken(DetailAST aAST)` Called to process a token.

Methods inherited from class com.puppycrawl.tools.checkstyle.api.Check
`beginTree, destroy, finishTree, getAcceptableTokens, getClassLoader, getFileContents, getLines, getTabWidth, getTokenNames, init, log, log, setClassLoader, setFileContents, setMessages, setTabWidth, setTokens`

Methods inherited from class com.puppycrawl.tools.checkstyle.api.AbstractViolationReporter
`getId, getMessageBundle, getSeverity, getSeverityLevel, log, log, log, log, log, log, log, log, log, setId, setSeverity`

Methods inherited from class com.puppycrawl.tools.checkstyle.api.AutomaticBean
`configure, contextualize, finishLocalSetup, getConfiguration, setupChild`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait`

Constructor Detail

### BooleanExpressionComplexityCheck

    public BooleanExpressionComplexityCheck()

  Creates new instance of the check.

Method Detail

### getDefaultTokens

    public int[] getDefaultTokens()

  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 `Check`
  Returns:
    the default tokens
  See Also:
    `TokenTypes`

### getRequiredTokens

    public int[] getRequiredTokens()

  The tokens that this check must be registered for.

  Overrides:
    `getRequiredTokens` in class `Check`
  Returns:
    the token set this must be registered for.
  See Also:
    `TokenTypes`

### getMax

    public int getMax()

  Getter for maximum allowed complexity.

  Returns:
    value of maximum allowed complexity.

### setMax

    public void setMax(int aMax)

  Setter for maximum allowed complexity.

  Parameters:
    `aMax` - new maximum allowed complexity.

### visitToken

    public void visitToken(DetailAST aAST)

  Called to process a token.

  Overrides:
    `visitToken` in class `Check`
  Parameters:
    `aAST` - the token to process

### leaveToken

    public void leaveToken(DetailAST aAST)

  Called after all the child nodes have been process.

  Overrides:
    `leaveToken` in class `Check`
  Parameters:
    `aAST` - the token leaving

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