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.

API Note:
  Methods in this class may be overridden subject to their general contract.

  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 and subclasses 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 directly or indirectly 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 a new visitor is introduced, portions of this visitor class may be deprecated, including its constructors.

Since:
  1.6
See Also:
  - `SimpleTypeVisitor7`
  - `SimpleTypeVisitor8`
  - `SimpleTypeVisitor9`
  - `SimpleTypeVisitor14`

## Field Summary

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

## Constructor Summary

Constructors
Modifier
Constructor
Description
`protected`
`SimpleTypeVisitor6()`
Deprecated.
Release 6 is obsolete; update to a visitor for a newer release level.
`protected`
`SimpleTypeVisitor6(R defaultValue)`
Deprecated.
Release 6 is obsolete; update to a visitor for a newer release level.

## Method Summary

Modifier and Type
Method
Description
`protected R`
`defaultAction(TypeMirror t, P p)`
The default action for visit methods.
`R`
`visitArray(ArrayType t, P p)`
Visits an array type.
`R`
`visitDeclared(DeclaredType t, P p)`
Visits a declared type.
`R`
`visitError(ErrorType t, P p)`
Visits an error type.
`R`
`visitExecutable(ExecutableType t, P p)`
Visits an executable type.
`R`
`visitNoType(NoType t, P p)`
Visits a `NoType` instance.
`R`
`visitNull(NullType t, P p)`
Visits the null type.
`R`
`visitPrimitive(PrimitiveType t, P p)`
Visits a primitive type.
`R`
`visitTypeVariable(TypeVariable t, P p)`
Visits a type variable.
`R`
`visitWildcard(WildcardType t, P p)`
Visits a wildcard type.

### Methods declared in class javax.lang.model.util.AbstractTypeVisitor6

`visit, visit, visitIntersection, visitUnion, visitUnknown`

### Methods declared in class java.lang.Object

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

## 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 t, 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:
  `t` - 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`