Package org.aspectj.org.eclipse.jdt.internal.core.nd.field

Class FieldOneToMany<T extends INdStruct>

java.lang.Object

org.aspectj.org.eclipse.jdt.internal.core.nd.field.FieldOneToMany<T>

All Implemented Interfaces:

IDestructableField, IField, IRefCountedField

public class FieldOneToMany<T extends INdStruct>
extends Object
implements IDestructableField, IRefCountedField

Holds the 1 side of a 1..n relationship between two objects. FieldNodePointer and FieldBackPointer fields always go together in pairs.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	FieldOneToMany.Visitor<T>

Field Summary

Fields

Modifier and Type	Field	Description
StructDef<? extends INdStruct>	localType
protected int	offset
StructDef<T>	targetType

Method Summary

Modifier and Type	Method	Description
void	accept(Nd nd, long address, FieldOneToMany.Visitor<T> visitor)
List<T>	asList(Nd nd, long address)
static <T extends INdStruct, B extends INdStruct> FieldOneToMany<T>	create(StructDef<B> builder, FieldManyToOne<B> forwardPointer)
static <T extends INdStruct, B extends INdStruct> FieldOneToMany<T>	create(StructDef<B> builder, FieldManyToOne<B> forwardPointer, int inlineElementCount)	Creates a FieldOneToMany using the given builder.
void	destruct(Nd nd, long address)
void	ensureCapacity(Nd nd, long address, int capacity)
T	get(Nd nd, long address, int index)
long	getAddressOf(Nd nd, long address, int index)
int	getCapacity(Nd nd, long address)
String	getFieldName()	Returns the name of the field.
int	getOffset()	Returns the field offset, in bytes from the start of the struct.
int	getRecordSize()	Returns the record size of the back pointer list
boolean	hasReferences(Nd nd, long address)	Returns true if this field knows of any remaining incoming references to this object.
boolean	isEmpty(Nd nd, long address)
protected void	setFieldName(String fieldName)
void	setOffset(int offset)	Sets the field offset (bytes from the start of the struct).
int	size(Nd nd, long address)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface org.aspectj.org.eclipse.jdt.internal.core.nd.field.IField

getAlignment

Field Details

targetType

public StructDef<T extends INdStruct> targetType

localType

public final StructDef<? extends INdStruct> localType

offset

protected int offset

Method Details

create

public static <T extends INdStruct,
B extends INdStruct>
FieldOneToMany<T> create(StructDef<B> builder,
 FieldManyToOne<B> forwardPointer,
 int inlineElementCount)

Creates a FieldOneToMany using the given builder. It will hold the many side of a one-to-many relationship with nodeType.

Parameters:

builder - builder that is being used to construct the struct containing this field

forwardPointer - field of the model object which holds the one side of this one-to-many relationship

inlineElementCount - number of inline elements. If this is nonzero, space for this number elements is preallocated and reserved in the header. The first few elements inserted will be stored here. For relationships which will usually have more than a certain number of participants, using a small number of inline elements will offer a performance improvement. For relationships that will normally be empty, this should be 0.

Returns:

the newly constructed backpointer field

create

public static <T extends INdStruct,
B extends INdStruct>
FieldOneToMany<T> create(StructDef<B> builder,
 FieldManyToOne<B> forwardPointer)

accept

public void accept(Nd nd,
 long address,
 FieldOneToMany.Visitor<T> visitor)

asList

public List<T> asList(Nd nd,
 long address)

isEmpty

public boolean isEmpty(Nd nd,
 long address)

size

public int size(Nd nd,
 long address)

get

public T get(Nd nd,
 long address,
 int index)

getAddressOf

public long getAddressOf(Nd nd,
 long address,
 int index)

getRecordSize

public int getRecordSize()

Returns the record size of the back pointer list

Specified by:

getRecordSize in interface IField

ensureCapacity

public void ensureCapacity(Nd nd,
 long address,
 int capacity)

destruct

public void destruct(Nd nd,
 long address)

Specified by:

destruct in interface IDestructableField

getCapacity

public int getCapacity(Nd nd,
 long address)

hasReferences

public boolean hasReferences(Nd nd,
 long address)

Description copied from interface: IRefCountedField

Returns true if this field knows of any remaining incoming references to this object. This is used by the implementation of FieldManyToOne to determine whether or not a refcounted object should be deleted after a reference is removed.

Implementations should return false if the refcount is 0 or true if the refcount is nonzero.

Specified by:

hasReferences in interface IRefCountedField

setFieldName

protected final void setFieldName(String fieldName)

setOffset

public final void setOffset(int offset)

Description copied from interface: IField

Sets the field offset (bytes from the start of the struct). This is invoked some time after field construction, after the sizes of all preceeding fields are known.

Specified by:

setOffset in interface IField

getOffset

public final int getOffset()

Description copied from interface: IField

Returns the field offset, in bytes from the start of the struct.

Specified by:

getOffset in interface IField

getFieldName

public final String getFieldName()

Description copied from interface: IField

Returns the name of the field. This is mainly used for error messages, debug output, and diagnostic tools. Meant to be programmer-readable but not user-readable.

Specified by:

getFieldName in interface IField