org.eclipse.jdt.core.dom
Class ClassInstanceCreation

java.lang.Object
  org.eclipse.jdt.core.dom.ASTNode
      org.eclipse.jdt.core.dom.Expression
          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

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

java.util.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 java.util.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).
java.util.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

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 java.util.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:

java.lang.IllegalArgumentException - if:

• the node belongs to a different AST
• the node already has a parent
• a cycle in would be created

typeArguments

public java.util.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:

java.lang.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:

java.lang.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:

java.lang.IllegalArgumentException - if:

• the node belongs to a different AST
• the node already has a parent
`

java.lang.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:

java.lang.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:

java.lang.IllegalArgumentException - if:

• the node belongs to a different AST
• the node already has a parent
`

java.lang.UnsupportedOperationException - if this operation is used in a JLS2 AST

Since:

3.1

arguments

public java.util.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