Class InnerTypeLastCheck

  • All Implemented Interfaces:
    Configurable, Contextualizable

    public class InnerTypeLastCheck
    extends AbstractCheck

    Checks nested (internal) classes/interfaces are declared at the bottom of the primary (top-level) class after all init and static init blocks, method, constructor and field declarations.

    To configure the check:

     <module name="InnerTypeLast"/>
     

    Example:

     class Test {
         private String s; // OK
         class InnerTest1 {}
         public void test() {} // violation, method should be declared before inner types.
     }
    
     class Test2 {
         static {}; // OK
         class InnerTest1 {}
         public Test2() {} // violation, constructor should be declared before inner types.
     }
    
     class Test3 {
         private String s; // OK
         public void test() {} // OK
         class InnerTest1 {}
     }
     

    Parent is com.puppycrawl.tools.checkstyle.TreeWalker

    Violation Message Keys:

    • arrangement.members.before.inner
    Since:
    5.2
    • Field Detail

      • MSG_KEY

        public static final java.lang.String MSG_KEY
        A key is pointing to the warning message text in "messages.properties" file.
        See Also:
        Constant Field Values
    • Constructor Detail

      • InnerTypeLastCheck

        public InnerTypeLastCheck()
    • Method Detail

      • 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
      • beginTree

        public void beginTree​(DetailAST rootAST)
        Description copied from class: AbstractCheck
        Called before the starting to process a tree. Ideal place to initialize information that is to be collected whilst processing a tree.
        Overrides:
        beginTree in class AbstractCheck
        Parameters:
        rootAST - the root of the tree
      • leaveToken

        public void leaveToken​(DetailAST ast)
        Description copied from class: AbstractCheck
        Called after all the child nodes have been process.
        Overrides:
        leaveToken in class AbstractCheck
        Parameters:
        ast - the token leaving