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Eclipse JDT
Release 3.5

org.eclipse.jdt.core.dom
Class VariableDeclarationExpression

java.lang.Object
  extended by 

org.eclipse.jdt.core.dom.ASTNode
      extended by 

org.eclipse.jdt.core.dom.Expression
          extended by 
org.eclipse.jdt.core.dom.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.

For JLS2:
 VariableDeclarationExpression:
    { Modifier } Type VariableDeclarationFragment
         { , VariableDeclarationFragment }
 
For JLS3, the modifier flags were replaced by a list of modifier nodes (intermixed with annotations):
 VariableDeclarationExpression:
    { ExtendedModifier } Type VariableDeclarationFragment
         { , VariableDeclarationFragment }
 

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

Field Summary
static  ChildListPropertyDescriptor FRAGMENTS_PROPERTY
          The "fragments" structural property of this node type).
static  SimplePropertyDescriptor MODIFIERS_PROPERTY
          The "modifiers" structural property of this node type (JLS2 API only).
static  ChildListPropertyDescriptor MODIFIERS2_PROPERTY
          The "modifiers" structural property of this node type (added in JLS3 API).
static  ChildPropertyDescriptor TYPE_PROPERTY
          The "type" structural property of this node type.
 
Fields inherited from class org.eclipse.jdt.core.dom. ASTNode
ANNOTATION_TYPE_DECLARATION, ANNOTATION_TYPE_MEMBER_DECLARATION, ANONYMOUS_CLASS_DECLARATION, ARRAY_ACCESS, ARRAY_CREATION, ARRAY_INITIALIZER, ARRAY_TYPE, ASSERT_STATEMENT, ASSIGNMENT, BLOCK, BLOCK_COMMENT, BOOLEAN_LITERAL, BREAK_STATEMENT, CAST_EXPRESSION, CATCH_CLAUSE, CHARACTER_LITERAL, CLASS_INSTANCE_CREATION, COMPILATION_UNIT, CONDITIONAL_EXPRESSION, CONSTRUCTOR_INVOCATION, CONTINUE_STATEMENT, DO_STATEMENT, EMPTY_STATEMENT, ENHANCED_FOR_STATEMENT, ENUM_CONSTANT_DECLARATION, ENUM_DECLARATION, EXPRESSION_STATEMENT, FIELD_ACCESS, FIELD_DECLARATION, FOR_STATEMENT, IF_STATEMENT, IMPORT_DECLARATION, INFIX_EXPRESSION, INITIALIZER, INSTANCEOF_EXPRESSION, JAVADOC, LABELED_STATEMENT, LINE_COMMENT, MALFORMED, MARKER_ANNOTATION, MEMBER_REF, MEMBER_VALUE_PAIR, METHOD_DECLARATION, METHOD_INVOCATION, METHOD_REF, METHOD_REF_PARAMETER, MODIFIER, NORMAL_ANNOTATION, NULL_LITERAL, NUMBER_LITERAL, ORIGINAL, PACKAGE_DECLARATION, PARAMETERIZED_TYPE, PARENTHESIZED_EXPRESSION, POSTFIX_EXPRESSION, PREFIX_EXPRESSION, PRIMITIVE_TYPE, PROTECT, QUALIFIED_NAME, QUALIFIED_TYPE, RECOVERED, RETURN_STATEMENT, SIMPLE_NAME, SIMPLE_TYPE, SINGLE_MEMBER_ANNOTATION, SINGLE_VARIABLE_DECLARATION, STRING_LITERAL, SUPER_CONSTRUCTOR_INVOCATION, SUPER_FIELD_ACCESS, SUPER_METHOD_INVOCATION, SWITCH_CASE, SWITCH_STATEMENT, SYNCHRONIZED_STATEMENT, TAG_ELEMENT, TEXT_ELEMENT, THIS_EXPRESSION, THROW_STATEMENT, TRY_STATEMENT, TYPE_DECLARATION, TYPE_DECLARATION_STATEMENT, TYPE_LITERAL, TYPE_PARAMETER, VARIABLE_DECLARATION_EXPRESSION, VARIABLE_DECLARATION_FRAGMENT, VARIABLE_DECLARATION_STATEMENT, WHILE_STATEMENT, WILDCARD_TYPE
 
Method Summary
  List fragments ()
          Returns the live list of variable declaration fragments in this expression.
 int getModifiers ()
          Returns the modifiers explicitly specified on this declaration.
  Type getType ()
          Returns the base type declared in this variable declaration.
  List modifiers ()
          Returns the live ordered list of modifiers and annotations of this declaration (added in JLS3 API).
static  List propertyDescriptors (int apiLevel)
          Returns a list of structural property descriptors for this node type.
 void setModifiers (int modifiers)
          Deprecated. In the JLS3 API, this method is replaced by modifiers() which contains a list of a Modifier nodes.
 void setType ( Type type)
          Sets the base type declared in this variable declaration to the given type.
 
Methods inherited from class org.eclipse.jdt.core.dom. Expression
resolveBoxing, resolveConstantExpressionValue, resolveTypeBinding, resolveUnboxing
 
Methods inherited from class org.eclipse.jdt.core.dom. ASTNode
accept, copySubtree, copySubtrees, delete, equals, getAST, getFlags, getLength, getLocationInParent, getNodeType, getParent, getProperty, getRoot, getStartPosition, getStructuralProperty, hashCode, nodeClassForType, properties, setFlags, setProperty, setSourceRange, setStructuralProperty, structuralPropertiesForType, subtreeBytes, subtreeMatch, toString
 
Methods inherited from class java.lang. Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
 

Field Detail

MODIFIERS_PROPERTY

public static final 
SimplePropertyDescriptor MODIFIERS_PROPERTY
The "modifiers" structural property of this node type (JLS2 API only).

Since:
3.0

MODIFIERS2_PROPERTY

public static final 
ChildListPropertyDescriptor MODIFIERS2_PROPERTY
The "modifiers" structural property of this node type (added in JLS3 API).

Since:
3.1

TYPE_PROPERTY

public static final 
ChildPropertyDescriptor TYPE_PROPERTY
The "type" structural property of this node type.

Since:
3.0

FRAGMENTS_PROPERTY

public static final 
ChildListPropertyDescriptor FRAGMENTS_PROPERTY
The "fragments" structural property of this node type).

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

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)

Eclipse JDT
Release 3.5

Copyright (c) IBM Corp. and others 2000, 2008. All Rights Reserved.

 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire