Class ClassInstanceCreation


  • public class ClassInstanceCreation
    extends Expression
    Class instance creation expression AST node type.
     ClassInstanceCreation:
            [ Expression . ]
                new [ < Type { , Type } > ]
                Type ( [ Expression { , Expression } ] )
                [ AnonymousClassDeclaration ]
     

    Not all node arrangements will represent legal Java constructs. In particular, it is nonsense if the type is a primitive type or an array type (primitive types cannot be instantiated, and array creations must be represented with ArrayCreation nodes). The normal use is when the type is a simple, qualified, or parameterized type.

    QualifiedType discusses typical representations of qualified type references.

    Since:
    2.0
    Restriction:
    This class is not intended to be instantiated by clients.
    • Field Detail

      • TYPE_ARGUMENTS_PROPERTY

        public static final ChildListPropertyDescriptor TYPE_ARGUMENTS_PROPERTY
        The "typeArguments" structural property of this node type (element type: Type) (added in JLS3 API).
        Since:
        3.1
      • EXPRESSION_PROPERTY

        public static final ChildPropertyDescriptor EXPRESSION_PROPERTY
        The "expression" structural property of this node type (child type: Expression).
        Since:
        3.0
      • NAME_PROPERTY

        public static final ChildPropertyDescriptor NAME_PROPERTY
        Deprecated.
        In the JLS3 API, this property is replaced by TYPE_PROPERTY.
        The "name" structural property of this node type (child type: Name) (JLS2 API only).
        Since:
        3.0
      • TYPE_PROPERTY

        public static final ChildPropertyDescriptor TYPE_PROPERTY
        The "type" structural property of this node type (child type: Type) (added in JLS3 API).
        Since:
        3.1
      • ANONYMOUS_CLASS_DECLARATION_PROPERTY

        public static final ChildPropertyDescriptor ANONYMOUS_CLASS_DECLARATION_PROPERTY
        The "anonymousClassDeclaration" structural property of this node type (child type: AnonymousClassDeclaration).
        Since:
        3.0
    • Method Detail

      • 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)
        Since:
        3.0
      • getExpression

        public Expression getExpression()
        Returns the expression of this class instance creation expression, or null if there is none.
        Returns:
        the expression node, or null if there is none
      • setExpression

        public void setExpression​(Expression expression)
        Sets or clears the expression of this class instance creation expression.
        Parameters:
        expression - the expression node, or null if there is none
        Throws:
        IllegalArgumentException - if:
        • the node belongs to a different AST
        • the node already has a parent
        • a cycle in would be created
      • typeArguments

        public List typeArguments()
        Returns the live ordered list of type arguments of this class instance creation (added in JLS3 API).
        Returns:
        the live list of type arguments (element type: Type)
        Throws:
        UnsupportedOperationException - if this operation is used in a JLS2 AST
        Since:
        3.1
      • getName

        public Name getName()
        Deprecated.
        In the JLS3 API, this method is replaced by getType(), which returns a Type instead of a Name.
        Returns the name of the type instantiated in this class instance creation expression (JLS2 API only).
        Returns:
        the type name node
        Throws:
        UnsupportedOperationException - if this operation is used in an AST later than JLS2
      • setName

        public void setName​(Name name)
        Deprecated.
        In the JLS3 API, this method is replaced by setType(Type), which expects a Type instead of a Name.
        Sets the name of the type instantiated in this class instance creation expression (JLS2 API only).
        Parameters:
        name - the new type name
        Throws:
        IllegalArgumentException - if:
        • the node belongs to a different AST
        • the node already has a parent
        UnsupportedOperationException - if this operation is used in an AST later than JLS2
      • getType

        public Type getType()
        Returns the type instantiated in this class instance creation expression (added in JLS3 API).
        Returns:
        the type node
        Throws:
        UnsupportedOperationException - if this operation is used in a JLS2 AST
        Since:
        3.1
      • setType

        public void setType​(Type type)
        Sets the type instantiated in this class instance creation expression (added in JLS3 API).
        Parameters:
        type - the new type
        Throws:
        IllegalArgumentException - if:
        • the node belongs to a different AST
        • the node already has a parent
        UnsupportedOperationException - if this operation is used in a JLS2 AST
        Since:
        3.1
      • arguments

        public List arguments()
        Returns the live ordered list of argument expressions in this class instance creation expression.
        Returns:
        the live list of argument expressions (possibly empty) (element type: Expression)
      • getAnonymousClassDeclaration

        public AnonymousClassDeclaration getAnonymousClassDeclaration()
        Returns the anonymous class declaration introduced by this class instance creation expression, if it has one.
        Returns:
        the anonymous class declaration, or null if none
      • setAnonymousClassDeclaration

        public void setAnonymousClassDeclaration​(AnonymousClassDeclaration decl)
        Sets whether this class instance creation expression declares an anonymous class (that is, has class body declarations).
        Parameters:
        decl - the anonymous class declaration, or null if none
      • resolveConstructorBinding

        public IMethodBinding resolveConstructorBinding()
        Resolves and returns the binding for the constructor invoked by this expression. For anonymous classes, the binding is that of the anonymous constructor.

        Note that bindings are generally unavailable unless requested when the AST is being built.

        Returns:
        the constructor binding, or null if the binding cannot be resolved
      • isResolvedTypeInferredFromExpectedType

        public boolean isResolvedTypeInferredFromExpectedType()
        Returns true if the resolved class type has been inferred from the assignment context (JLS4 15.12.2.8), false otherwise.

        This information is available only when bindings are requested when the AST is being built.

        Returns:
        true if the resolved class type has been inferred from the assignment context (JLS3 15.12.2.8), false otherwise
        Since:
        3.7.1