W3cubDocs

/OpenJDK 21

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:

Field Summary

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

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Release 6 is obsolete; update to a visitor for a newer release level.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Release 6 is obsolete; update to a visitor for a newer release level.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

© 1993, 2023, Oracle and/or its affiliates. All rights reserved.
Documentation extracted from Debian's OpenJDK Development Kit package.
Licensed under the GNU General Public License, version 2, with the Classpath Exception.
Various third party code in OpenJDK is licensed under different licenses (see Debian package).
Java and OpenJDK are trademarks or registered trademarks of Oracle and/or its affiliates.
https://docs.oracle.com/en/java/javase/21/docs/api/java.compiler/javax/lang/model/util/SimpleTypeVisitor6.html