Package org.eclipse.jdt.core.dom

Class WildcardType

java.lang.Object
org.eclipse.jdt.core.dom.ASTNode
org.eclipse.jdt.core.dom.Type
org.eclipse.jdt.core.dom.AnnotatableType
org.eclipse.jdt.core.dom.WildcardType
public class WildcardType extends AnnotatableType
Type node for a wildcard type (added in JLS3 API). 
 WildcardType:
    { Annotation } ? [ ( extends | super) Type ]

Not all node arrangements will represent legal Java constructs. In particular, it is nonsense if a wildcard type node appears anywhere other than as an argument of a ParameterizedType node.

Since:
3.1
Restriction:
This class is not intended to be instantiated by clients.

  • Field Details

    • ANNOTATIONS_PROPERTY

      public static final ChildListPropertyDescriptor ANNOTATIONS_PROPERTY
      The "annotations" structural property of this node type (element type: Annotation).
      Since:
      3.10

    • BOUND_PROPERTY

      public static final ChildPropertyDescriptor BOUND_PROPERTY
      The "bound" structural property of this node type (child type: Type).

    • UPPER_BOUND_PROPERTY

      public static final SimplePropertyDescriptor UPPER_BOUND_PROPERTY
      The "upperBound" structural property of this node type (type: Boolean).

  • Method Details

    • propertyDescriptors

      public static List propertyDescriptors(int apiLevel)
      Returns a list of structural property descriptors for this node type. Clients must not modify the result.
      Parameters:
      apiLevel - the API level; one of the AST.JLS* constants
      Returns:
      a list of property descriptors (element type: StructuralPropertyDescriptor)

    • isUpperBound

      public boolean isUpperBound()
      Returns whether this wildcard type is an upper bound ("extends") as opposed to a lower bound ("super").

      Note that this property is irrelevant for wildcards that do not have a bound.

      Returns:
      true if an upper bound, and false if a lower bound
      See Also:

    • getBound

      public Type getBound()
      Returns the bound of this wildcard type if it has one. If isUpperBound returns true, this is an upper bound ("? extends B"); if it returns false, this is a lower bound ("? super B").
      Returns:
      the bound of this wildcard type, or null if none
      See Also:

    • setBound

      public void setBound(Type type, boolean isUpperBound)
      Sets the bound of this wildcard type to the given type and marks it as an upper or a lower bound. The method is equivalent to calling setBound(type); setUpperBound(isUpperBound).
      Parameters:
      type - the new bound of this wildcard type, or null if none
      isUpperBound - true for an upper bound ("? extends B"), and false for a lower bound ("? super B")
      Throws:
      IllegalArgumentException - if:
      • the node belongs to a different AST
      • the node already has a parent
      See Also:

    • setBound

      public void setBound(Type type)
      Sets the bound of this wildcard type to the given type.
      Parameters:
      type - the new bound of this wildcard type, or null if none
      Throws:
      IllegalArgumentException - if:
      • the node belongs to a different AST
      • the node already has a parent
      See Also:

    • setUpperBound

      public void setUpperBound(boolean isUpperBound)
      Sets whether this wildcard type is an upper bound ("extends") as opposed to a lower bound ("super").
      Parameters:
      isUpperBound - true if an upper bound, and false if a lower bound
      See Also: