SimpleAnnotationValueVisitor6 (Java Platform SE 8 )
Keywords: javax.lang.model.util.SimpleAnnotationValueVisitor6 class
Date: 2020-03-26

compact3
javax.lang.model.util

## Class SimpleAnnotationValueVisitor6<R,P>

- java.lang.Object
- - javax.lang.model.util.AbstractAnnotationValueVisitor6<R,P>
  - - javax.lang.model.util.SimpleAnnotationValueVisitor6<R,P>

- Type Parameters:
    `R` - the return type of this visitor's methods
    `P` - the type of the additional parameter to this visitor's methods.
  All Implemented Interfaces:
    AnnotationValueVisitor<R,P>
  Direct Known Subclasses:
    SimpleAnnotationValueVisitor7

      @SupportedSourceVersion(value=RELEASE_6)
      public class SimpleAnnotationValueVisitor6<R,P>
      extends AbstractAnnotationValueVisitor6<R,P>

  A simple visitor for annotation values with default behavior appropriate for the `RELEASE_6` source version. Visit methods call `defaultAction(java.lang.Object, P)` passing their arguments to `defaultAction`'s corresponding parameters.

  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 `AnnotationValueVisitor` 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 annotation value 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.

  Note that adding a default implementation of a new visit method in a visitor class will occur instead of adding a default method directly in the visitor interface since a Java SE 8 language feature cannot be used to this version of the API since this version is required to be runnable on Java SE 7 implementations. Future versions of the API that are only required to run on Java SE 8 and later may take advantage of default methods in this situation.

  Since:
    1.6
  See Also:
    `SimpleAnnotationValueVisitor7`, `SimpleAnnotationValueVisitor8`

- - ### Field Summary

    Fields
    Modifier and Type | Field and Description
    --- | ---
    `protected R` | `DEFAULT_VALUE` Default value to be returned; `defaultAction` returns this value unless the method is overridden.

  - ### Constructor Summary

    Constructors
    Modifier | Constructor and Description
    --- | ---
    `protected` | `SimpleAnnotationValueVisitor6()` Constructor for concrete subclasses; uses `null` for the default value.
    `protected` | `SimpleAnnotationValueVisitor6(R defaultValue)` Constructor for concrete subclasses; uses the argument for the default value.

  - ### Method Summary

    All Methods Instance Methods Concrete Methods
    Modifier and Type | Method and Description
    --- | ---
    `protected R` | `defaultAction(Object o, P p)` The default action for visit methods.
    `R` | `visitAnnotation(AnnotationMirror a, P p)` Visits an annotation value in an annotation.
    `R` | `visitArray(List<? extends AnnotationValue> vals, P p)` Visits an array value in an annotation.
    `R` | `visitBoolean(boolean b, P p)` Visits a `boolean` value in an annotation.
    `R` | `visitByte(byte b, P p)` Visits a `byte` value in an annotation.
    `R` | `visitChar(char c, P p)` Visits a `char` value in an annotation.
    `R` | `visitDouble(double d, P p)` Visits a `double` value in an annotation.
    `R` | `visitEnumConstant(VariableElement c, P p)` Visits an `enum` value in an annotation.
    `R` | `visitFloat(float f, P p)` Visits a `float` value in an annotation.
    `R` | `visitInt(int i, P p)` Visits an `int` value in an annotation.
    `R` | `visitLong(long i, P p)` Visits a `long` value in an annotation.
    `R` | `visitShort(short s, P p)` Visits a `short` value in an annotation.
    `R` | `visitString(String s, P p)` Visits a string value in an annotation.
    `R` | `visitType(TypeMirror t, P p)` Visits a type value in an annotation.

    - ### Methods inherited from class javax.lang.model.util.AbstractAnnotationValueVisitor6

      `visit, visit, visitUnknown`

    - ### Methods inherited from class java.lang.Object

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

- - ### Field Detail

    - #### DEFAULT_VALUE

          protected final R DEFAULT_VALUE

      Default value to be returned; `defaultAction` returns this value unless the method is overridden.

  - ### Constructor Detail

    - #### SimpleAnnotationValueVisitor6

          protected SimpleAnnotationValueVisitor6()

      Constructor for concrete subclasses; uses `null` for the default value.

    - #### SimpleAnnotationValueVisitor6

          protected SimpleAnnotationValueVisitor6(R defaultValue)

      Constructor for concrete subclasses; uses the argument for the default value.
      Parameters:
        `defaultValue` - the value to assign to `DEFAULT_VALUE`

  - ### Method Detail

    - #### defaultAction

          protected R defaultAction(Object o,
                                    P p)

      The default action for visit methods. The implementation in this class just returns `DEFAULT_VALUE`; subclasses will commonly override this method.
      Parameters:
        `o` - the value of the annotation
        `p` - a visitor-specified parameter
      Returns:
        `DEFAULT_VALUE` unless overridden

    - #### visitBoolean

          public R visitBoolean(boolean b,
                                P p)

      Visits a `boolean` value in an annotation. This implementation calls `defaultAction`.
      Parameters:
        `b` - the value being visited
        `p` - a visitor-specified parameter
      Returns:
        the result of `defaultAction`

    - #### visitByte

          public R visitByte(byte b,
                             P p)

      Visits a `byte` value in an annotation. This implementation calls `defaultAction`.
      Parameters:
        `b` - the value being visited
        `p` - a visitor-specified parameter
      Returns:
        the result of `defaultAction`

    - #### visitChar

          public R visitChar(char c,
                             P p)

      Visits a `char` value in an annotation. This implementation calls `defaultAction`.
      Parameters:
        `c` - the value being visited
        `p` - a visitor-specified parameter
      Returns:
        the result of `defaultAction`

    - #### visitDouble

          public R visitDouble(double d,
                               P p)

      Visits a `double` value in an annotation. This implementation calls `defaultAction`.
      Parameters:
        `d` - the value being visited
        `p` - a visitor-specified parameter
      Returns:
        the result of `defaultAction`

    - #### visitFloat

          public R visitFloat(float f,
                              P p)

      Visits a `float` value in an annotation. This implementation calls `defaultAction`.
      Parameters:
        `f` - the value being visited
        `p` - a visitor-specified parameter
      Returns:
        the result of `defaultAction`

    - #### visitInt

          public R visitInt(int i,
                            P p)

      Visits an `int` value in an annotation. This implementation calls `defaultAction`.
      Parameters:
        `i` - the value being visited
        `p` - a visitor-specified parameter
      Returns:
        the result of `defaultAction`

    - #### visitLong

          public R visitLong(long i,
                             P p)

      Visits a `long` value in an annotation. This implementation calls `defaultAction`.
      Parameters:
        `i` - the value being visited
        `p` - a visitor-specified parameter
      Returns:
        the result of `defaultAction`

    - #### visitShort

          public R visitShort(short s,
                              P p)

      Visits a `short` value in an annotation. This implementation calls `defaultAction`.
      Parameters:
        `s` - the value being visited
        `p` - a visitor-specified parameter
      Returns:
        the result of `defaultAction`

    - #### visitString

          public R visitString(String s,
                               P p)

      Visits a string value in an annotation. This implementation calls `defaultAction`.
      Parameters:
        `s` - the value being visited
        `p` - a visitor-specified parameter
      Returns:
        the result of `defaultAction`

    - #### visitType

          public R visitType(TypeMirror t,
                             P p)

      Visits a type value in an annotation. This implementation calls `defaultAction`.
      Parameters:
        `t` - the value being visited
        `p` - a visitor-specified parameter
      Returns:
        the result of `defaultAction`

    - #### visitEnumConstant

          public R visitEnumConstant(VariableElement c,
                                     P p)

      Visits an `enum` value in an annotation. This implementation calls `defaultAction`.
      Parameters:
        `c` - the value being visited
        `p` - a visitor-specified parameter
      Returns:
        the result of `defaultAction`

    - #### visitAnnotation

          public R visitAnnotation(AnnotationMirror a,
                                   P p)

      Visits an annotation value in an annotation. This implementation calls `defaultAction`.
      Parameters:
        `a` - the value being visited
        `p` - a visitor-specified parameter
      Returns:
        the result of `defaultAction`

    - #### visitArray

          public R visitArray(List<? extends AnnotationValue> vals,
                              P p)

      Visits an array value in an annotation. This implementation calls `defaultAction`.
      Parameters:
        `vals` - the value being visited
        `p` - a visitor-specified parameter
      Returns:
        the result of `defaultAction`

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