Class VariableDeclarationExpression


  • public class VariableDeclarationExpression
    extends Expression
    Local variable declaration expression AST node type.

    This kind of node collects together several variable declaration fragments (VariableDeclarationFragment) into a single expression (Expression), all sharing the same modifiers and base type. This type of node can be used as the initializer of a ForStatement, or wrapped in an ExpressionStatement to form the equivalent of a VariableDeclarationStatement.

     VariableDeclarationExpression:
        { ExtendedModifier } Type VariableDeclarationFragment
             { , VariableDeclarationFragment }
     
    Since:
    2.0
    Restriction:
    This class is not intended to be instantiated by clients.
    • 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
      • modifiers

        public List modifiers()
        Returns the live ordered list of modifiers and annotations of this declaration (added in JLS3 API).

        Note that the final modifier is the only meaningful modifier for local variable declarations.

        Returns:
        the live list of modifiers and annotations (element type: IExtendedModifier)
        Throws:
        UnsupportedOperationException - if this operation is used in a JLS2 AST
        Since:
        3.1
      • getModifiers

        public int getModifiers()
        Returns the modifiers explicitly specified on this declaration.

        In the JLS3 API, this method is a convenience method that computes these flags from modifiers().

        Returns:
        the bit-wise or of Modifier constants
        See Also:
        Modifier
      • setModifiers

        public void setModifiers​(int modifiers)
        Deprecated.
        In the JLS3 API, this method is replaced by modifiers() which contains a list of a Modifier nodes.
        Sets the modifiers explicitly specified on this declaration (JLS2 API only).

        Note that the final modifier is the only meaningful modifier for local variable declarations.

        Parameters:
        modifiers - the given modifiers (bit-wise or of Modifier constants)
        Throws:
        UnsupportedOperationException - if this operation is used in an AST later than JLS2
        See Also:
        Modifier
      • getType

        public Type getType()
        Returns the base type declared in this variable declaration.

        N.B. The individual child variable declaration fragments may specify additional array dimensions. So the type of the variable are not necessarily exactly this type.

        Returns:
        the base type
      • setType

        public void setType​(Type type)
        Sets the base type declared in this variable declaration to the given type.
        Parameters:
        type - the new base type
        Throws:
        IllegalArgumentException - if:
        • the node belongs to a different AST
        • the node already has a parent
      • fragments

        public List fragments()
        Returns the live list of variable declaration fragments in this expression. Adding and removing nodes from this list affects this node dynamically. All nodes in this list must be VariableDeclarationFragments; attempts to add any other type of node will trigger an exception.
        Returns:
        the live list of variable declaration fragments in this expression (element type: VariableDeclarationFragment)