TEntity
- The type of entity.public class PointFromArchive<TEntity extends IEntityIdentifier & IEntityLastUpdate> extends Point
Point
whose position is defined by archived tracking data.Modifier | Constructor and Description |
---|---|
|
PointFromArchive(TypeLiteral<TEntity> typeLiteralTEntity)
Initializes a new instance.
|
protected |
PointFromArchive(TypeLiteral<TEntity> typeLiteralTEntity,
PointFromArchive<TEntity> existingInstance,
CopyContext context)
Initializes a new instance as a copy of an existing instance.
|
|
PointFromArchive(TypeLiteral<TEntity> typeLiteralTEntity,
TrackingArchive<TEntity> archive,
Object entityIdentifier)
Initializes a new instance to use a specified archive and entity.
|
Modifier and Type | Method and Description |
---|---|
protected boolean |
checkForSameDefinition(Point other)
Checks to determine if another instance has the same definition as this instance and
returns
true if it does. |
protected boolean |
checkForSameDefinition(PointFromArchive<TEntity> other)
Checks to determine if another instance has the same definition as this instance and
returns
true if it does. |
Object |
clone(CopyContext context)
Clones this object using the specified context.
|
protected int |
computeCurrentDefinitionHashCode()
Computes a hash code based on the current properties of this object.
|
TrackingArchive<TEntity> |
getArchive()
Gets the archive from which to obtain position data.
|
Object |
getEntityIdentifier()
Gets the identifier of the entity whose position is to be obtained from the archive.
|
PointEvaluator |
getEvaluator(EvaluatorGroup group)
Gets an evaluator that can be used to find the
Motion <Cartesian >
of this point at a given JulianDate . |
void |
setArchive(TrackingArchive<TEntity> value)
Sets the archive from which to obtain position data.
|
void |
setEntityIdentifier(Object value)
Sets the identifier of the entity whose position is to be obtained from the archive.
|
checkForSameDefinition, createVectorAcceleration, createVectorDerivative, createVectorVelocity, getEvaluator, getRoot, getScalarElement, getScalarElement, getService
areSameDefinition, areSameDefinition, areSameDefinition, areSameDefinition, areSameDefinition, collectionItemsAreSameDefinition, collectionItemsAreSameDefinition, collectionItemsAreSameDefinition, dictionaryItemsAreSameDefinition, enumerateDependencies, freeze, freezeAggregatedObjects, getCollectionHashCode, getCollectionHashCode, getCollectionHashCode, getDefinitionHashCode, getDefinitionHashCode, getDefinitionHashCode, getDefinitionHashCode, getDefinitionHashCode, getDefinitionHashCode, getDictionaryHashCode, getIsFrozen, isSameDefinition, throwIfFrozen
public PointFromArchive(TypeLiteral<TEntity> typeLiteralTEntity)
typeLiteralTEntity
- A TypeLiteral object representing the generic type TEntity
.public PointFromArchive(TypeLiteral<TEntity> typeLiteralTEntity, TrackingArchive<TEntity> archive, Object entityIdentifier)
typeLiteralTEntity
- A TypeLiteral object representing the generic type TEntity
.archive
- The archive from which to obtain position data.entityIdentifier
- The identifier of the entity whose position is to be obtained from the archive.protected PointFromArchive(TypeLiteral<TEntity> typeLiteralTEntity, @Nonnull PointFromArchive<TEntity> existingInstance, @Nonnull CopyContext context)
See ICloneWithContext.clone(CopyContext)
for more information about how to implement this constructor
in a derived class.
typeLiteralTEntity
- A TypeLiteral object representing the generic type TEntity
.existingInstance
- The existing instance to copy.context
- A CopyContext
that controls the depth of the copy.ArgumentNullException
- Thrown when existingInstance
or context
is null
.public Object clone(CopyContext context)
This method should be implemented to call a copy constructor on the class of the
object being cloned. The copy constructor should take the CopyContext
as a parameter
in addition to the existing instance to copy. The copy constructor should first call
CopyContext.addObjectMapping(T, T)
to identify the newly constructed instance
as a copy of the existing instance. It should then copy all fields, using
CopyContext.updateReference(T)
to copy any reference fields.
A typical implementation of ICloneWithContext
:
public static class MyClass implements ICloneWithContext {
public MyClass(MyClass existingInstance, CopyContext context) {
context.addObjectMapping(existingInstance, this);
someReference = context.updateReference(existingInstance.someReference);
}
@Override
public final Object clone(CopyContext context) {
return new MyClass(this, context);
}
private Object someReference;
}
In general, all fields that are reference types should be copied with a call to
CopyContext.updateReference(T)
. There are a couple of exceptions:
If one of these exceptions applies, the CopyContext
should be given an opportunity
to update the reference before the reference is copied explicitly. Use
CopyContext.updateReference(T)
to update the reference. If CopyContext.updateReference(T)
returns
the original object, indicating that the context does not have a replacement registered,
then copy the object manually by invoking a Clone method, a copy constructor, or by manually
constructing a new instance and copying the values.
alwaysCopy = context.updateReference(existingInstance.alwaysCopy);
if (existingInstance.alwaysCopy != null && alwaysCopy == existingInstance.alwaysCopy) {
alwaysCopy = (AlwaysCopy) existingInstance.alwaysCopy.clone(context);
}
If you are implementing an evaluator (a class that implements IEvaluator
), the
IEvaluator.updateEvaluatorReferences(agi.foundation.infrastructure.CopyContext)
method shares some responsibilities with the
copy context constructor. Code duplication can be avoided by doing the following:
CopyContext.updateReference(T)
. You should still call CopyContext.updateReference(T)
on any references to
non-evaluators.
IEvaluator.updateEvaluatorReferences(agi.foundation.infrastructure.CopyContext)
as the last line in the constructor and pass it the
same CopyContext
passed to the constructor.
IEvaluator.updateEvaluatorReferences(agi.foundation.infrastructure.CopyContext)
as normal. See the reference documentation for
IEvaluator.updateEvaluatorReferences(agi.foundation.infrastructure.CopyContext)
for more information on implementing that method.
public MyClass(MyClass existingInstance, CopyContext context) {
super(existingInstance, context);
someReference = context.updateReference(existingInstance.someReference);
evaluatorReference = existingInstance.evaluatorReference;
updateEvaluatorReferences(context);
}
@Override
public void updateEvaluatorReferences(CopyContext context) {
evaluatorReference = context.updateReference(evaluatorReference);
}
@Override
public Object clone(CopyContext context) {
return new MyClass(this, context);
}
private Object someReference;
private IEvaluator evaluatorReference;
clone
in interface ICloneWithContext
clone
in class DefinitionalObject
context
- The context to use to perform the copy.protected final boolean checkForSameDefinition(Point other)
true
if it does. Derived classes MUST override this method and check
all new fields introduced by the derived class for definitional equivalence. It is NOT necessary
to check base class fields because the base class will already have done that. When overriding this method,
you should NOT call the base implementation because it will return false
for all derived-class instances.
Derived classes should check the type of other
to preserve the symmetric nature of IEquatableDefinition.isSameDefinition(java.lang.Object)
.checkForSameDefinition
in class Point
other
- The other instance to compare to this one.true
if the two objects are defined equivalently; otherwise false
.protected boolean checkForSameDefinition(PointFromArchive<TEntity> other)
true
if it does. Derived classes MUST override this method and check
all new fields introduced by the derived class for definitional equivalence. It is NOT necessary
to check base class fields because the base class will already have done that. When overriding this method,
you should NOT call the base implementation because it will return false
for all derived-class instances.
Derived classes should check the type of other
to preserve the symmetric nature of IEquatableDefinition.isSameDefinition(java.lang.Object)
.other
- The other instance to compare to this one.true
if the two objects are defined equivalently; otherwise false
.protected int computeCurrentDefinitionHashCode()
PointFromArchive.checkForSameDefinition(agi.foundation.geometry.Point)
method.computeCurrentDefinitionHashCode
in class Point
public final TrackingArchive<TEntity> getArchive()
public final void setArchive(TrackingArchive<TEntity> value)
public final Object getEntityIdentifier()
public final void setEntityIdentifier(Object value)
public PointEvaluator getEvaluator(EvaluatorGroup group)
Motion
<Cartesian
>
of this point at a given JulianDate
.
Adds the evaluator to the EvaluatorGroup
.getEvaluator
in class Point
group
- The group with which to associate the new evaluator. By grouping evaluators
that are often evaluated at the same Julian dates, common computations can be performed only once
for the entire group instead of multiple times for each evaluator.ArgumentNullException
- Thrown when group
is null
.PropertyInvalidException
- Thrown when Archive
(get
/ set
) or EntityIdentifier
(get
/ set
) is null
.