Module java.compiler
Package javax.lang.model.util

Class SimpleTypeVisitor6<R,​P>

java.lang.Object
javax.lang.model.util.AbstractTypeVisitor6<R,​P>
javax.lang.model.util.SimpleTypeVisitor6<R,​P>
Type Parameters:
R - the return type of this visitor's methods. Use Void for visitors that do not need to return results.
P - the type of the additional parameter to this visitor's methods. Use Void for visitors that do not need an additional parameter.
All Implemented Interfaces:
TypeVisitor<R,​P>
Direct Known Subclasses:
SimpleTypeVisitor7, TypeKindVisitor6
@SupportedSourceVersion(RELEASE_6)
public class SimpleTypeVisitor6<R,​P>
extends AbstractTypeVisitor6<R,​P>
A simple visitor of types with default behavior appropriate for the RELEASE_6 source version. Visit methods corresponding to RELEASE_6 language constructs call defaultAction, passing their arguments to defaultAction's corresponding parameters. For constructs introduced in RELEASE_7 and later, visitUnknown is called instead.

Methods in this class may be overridden subject to their general contract. Note that annotating methods in concrete subclasses with @Override will help ensure that methods are overridden as intended.

WARNING: The TypeVisitor interface implemented by this class may have methods added to it in the future to accommodate new, currently unknown, language structures added to future versions of the Java™ programming language. Therefore, methods whose names begin with "visit" may be added to this class in the future; to avoid incompatibilities, classes which extend this class should not declare any instance methods with names beginning with "visit".

When such a new visit method is added, the default implementation in this class will be to call the visitUnknown method. A new simple type visitor class will also be introduced to correspond to the new language level; this visitor will have different default behavior for the visit method in question. When the new visitor is introduced, all or portions of this visitor may be deprecated.

Since:
1.6
See Also:
SimpleTypeVisitor7, SimpleTypeVisitor8, SimpleTypeVisitor9, SimpleTypeVisitor14

  • Field Details

    • DEFAULT_VALUE

      protected final R DEFAULT_VALUE
      Default value to be returned; defaultAction returns this value unless the method is overridden.

  • Constructor Details

    • SimpleTypeVisitor6

      @Deprecated(since="9") protected SimpleTypeVisitor6()
      Deprecated.
      Release 6 is obsolete; update to a visitor for a newer release level.
      Constructor for concrete subclasses; uses null for the default value.

    • SimpleTypeVisitor6

      @Deprecated(since="9") protected SimpleTypeVisitor6​(R defaultValue)
      Deprecated.
      Release 6 is obsolete; update to a visitor for a newer release level.
      Constructor for concrete subclasses; uses the argument for the default value.
      Parameters:
      defaultValue - the value to assign to DEFAULT_VALUE

  • Method Details

    • defaultAction

      protected R defaultAction​(TypeMirror e, P p)
      The default action for visit methods.
      Implementation Requirements:
      The implementation in this class just returns DEFAULT_VALUE; subclasses will commonly override this method.
      Parameters:
      e - the type to process
      p - a visitor-specified parameter
      Returns:
      DEFAULT_VALUE unless overridden

    • visitPrimitive

      public R visitPrimitive​(PrimitiveType t, P p)
      Visits a primitive type.
      Implementation Requirements:
      This implementation calls defaultAction.
      Parameters:
      t - the type to visit
      p - a visitor-specified parameter
      Returns:
      the result of defaultAction

    • visitNull

      public R visitNull​(NullType t, P p)
      Visits the null type. This implementation calls defaultAction.
      Implementation Requirements:
      This implementation calls defaultAction.
      Parameters:
      t - the type to visit
      p - a visitor-specified parameter
      Returns:
      the result of defaultAction

    • visitArray

      public R visitArray​(ArrayType t, P p)
      Visits an array type.
      Implementation Requirements:
      This implementation calls defaultAction.
      Parameters:
      t - the type to visit
      p - a visitor-specified parameter
      Returns:
      the result of defaultAction

    • visitDeclared

      public R visitDeclared​(DeclaredType t, P p)
      Visits a declared type.
      Implementation Requirements:
      This implementation calls defaultAction.
      Parameters:
      t - the type to visit
      p - a visitor-specified parameter
      Returns:
      the result of defaultAction

    • visitError

      public R visitError​(ErrorType t, P p)
      Visits an error type.
      Implementation Requirements:
      This implementation calls defaultAction.
      Parameters:
      t - the type to visit
      p - a visitor-specified parameter
      Returns:
      the result of defaultAction

    • visitTypeVariable

      public R visitTypeVariable​(TypeVariable t, P p)
      Visits a type variable.
      Implementation Requirements:
      This implementation calls defaultAction.
      Parameters:
      t - the type to visit
      p - a visitor-specified parameter
      Returns:
      the result of defaultAction

    • visitWildcard

      public R visitWildcard​(WildcardType t, P p)
      Visits a wildcard type.
      Implementation Requirements:
      This implementation calls defaultAction.
      Parameters:
      t - the type to visit
      p - a visitor-specified parameter
      Returns:
      the result of defaultAction

    • visitExecutable

      public R visitExecutable​(ExecutableType t, P p)
      Visits an executable type.
      Implementation Requirements:
      This implementation calls defaultAction.
      Parameters:
      t - the type to visit
      p - a visitor-specified parameter
      Returns:
      the result of defaultAction

    • visitNoType

      public R visitNoType​(NoType t, P p)
      Visits a NoType instance.
      Implementation Requirements:
      This implementation calls defaultAction.
      Parameters:
      t - the type to visit
      p - a visitor-specified parameter
      Returns:
      the result of defaultAction