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Eclipse JDT
Release 3.5

org.eclipse.jdt.core.dom
Class ClassInstanceCreation

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.ClassInstanceCreation

public class ClassInstanceCreation
extends Expression

Class instance creation expression AST node type. For JLS2:

 ClassInstanceCreation:
        [ Expression . ] new Name
            ( [ Expression { , Expression } ] )
            [ AnonymousClassDeclaration ]
 
For JLS3, type arguments are added and the type name is generalized to a type so that parameterized types can be instantiated:
 ClassInstanceCreation:
        [ Expression . ]
            new [ < Type { , Type } > ]
            Type ( [ Expression { , Expression } ] )
            [ AnonymousClassDeclaration ]
 

Not all node arragements 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.

A type like "A.B" can be represented either of two ways:

  1. QualifiedType(SimpleType(SimpleName("A")),SimpleName("B"))
  2. SimpleType(QualifiedName(SimpleName("A"),SimpleName("B")))
The first form is preferred when "A" is known to be a type (as opposed to a package). However, a parser cannot always determine this. Clients should be prepared to handle either rather than make assumptions. (Note also that the first form became possible as of JLS3; only the second form existed in JLS2.)

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

Field Summary
static  ChildPropertyDescriptor ANONYMOUS_CLASS_DECLARATION_PROPERTY
          The "anonymousClassDeclaration" structural property of this node type.
static  ChildListPropertyDescriptor ARGUMENTS_PROPERTY
          The "arguments" structural property of this node type.
static  ChildPropertyDescriptor EXPRESSION_PROPERTY
          The "expression" structural property of this node type.
static  ChildPropertyDescriptor NAME_PROPERTY
          The "name" structural property of this node type (JLS2 API only).
static  ChildListPropertyDescriptor TYPE_ARGUMENTS_PROPERTY
          The "typeArguments" structural property of this node type (added in JLS3 API).
static  ChildPropertyDescriptor TYPE_PROPERTY
          The "type" structural property of this node type (added in JLS3 API).
 
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 arguments ()
          Returns the live ordered list of argument expressions in this class instance creation expression.
  AnonymousClassDeclaration getAnonymousClassDeclaration ()
          Returns the anonymous class declaration introduced by this class instance creation expression, if it has one.
  Expression getExpression ()
          Returns the expression of this class instance creation expression, or null if there is none.
  Name getName ()
          Deprecated. In the JLS3 API, this method is replaced by getType(), which returns a Type instead of a Name.
  Type getType ()
          Returns the type instantiated in this class instance creation expression (added in JLS3 API).
static  List propertyDescriptors (int apiLevel)
          Returns a list of structural property descriptors for this node type.
  IMethodBinding resolveConstructorBinding ()
          Resolves and returns the binding for the constructor invoked by this expression.
 void setAnonymousClassDeclaration ( AnonymousClassDeclaration decl)
          Sets whether this class instance creation expression declares an anonymous class (that is, has class body declarations).
 void setExpression ( Expression expression)
          Sets or clears the expression of this class instance creation expression.
 void setName ( Name name)
          Deprecated. In the JLS3 API, this method is replaced by setType(Type), which expects a Type instead of a Name.
 void setType ( Type type)
          Sets the type instantiated in this class instance creation expression (added in JLS3 API).
  List typeArguments ()
          Returns the live ordered list of type arguments of this class instance creation (added in JLS3 API).
 
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

TYPE_ARGUMENTS_PROPERTY

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

Since:
3.1

EXPRESSION_PROPERTY

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

Since:
3.0

NAME_PROPERTY

public static final 
ChildPropertyDescriptor NAME_PROPERTY
The "name" structural property of this node type (JLS2 API only).

Since:
3.0

TYPE_PROPERTY

public static final 
ChildPropertyDescriptor TYPE_PROPERTY
The "type" structural property of this node type (added in JLS3 API).

Since:
3.1

ARGUMENTS_PROPERTY

public static final 
ChildListPropertyDescriptor ARGUMENTS_PROPERTY
The "arguments" structural property of this node type.

Since:
3.0

ANONYMOUS_CLASS_DECLARATION_PROPERTY

public static final 
ChildPropertyDescriptor ANONYMOUS_CLASS_DECLARATION_PROPERTY
The "anonymousClassDeclaration" 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

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

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