// expose copy constructor:

public PointArray(PointArray source) {

super(source);

}

// Default constructor needs to be defined only because we wanted to expose a copy constructor

public PointArray() {

}

// newInstance wrapper for convenience (cleaner/fewer parameters for API user):

public static PointArray newInstance(final long length) {

return StructuredArray.newInstance(PointArray.class, Point.class, length);

}

// newInstance wrapper for convenience (cleaner/fewer parameters for API user):

public static PointArray newInstance(final long length,

final CtorAndArgsProvider<Point> ctorAndArgsProvider) {

return StructuredArray.newInstance(

PointArray.class, Point.class, length, ctorAndArgsProvider);

}

// If you want to support direct construction parameters for elements, with with

// parameter types you know (statically) have a good constructor associated with the,

// here is an example:

public static PointArray newInstance(final long length, final long x, final long y) {

final CtorAndArgs<Point> xy_ctorAndArgs = new CtorAndArgs<Point>(xy_constructor, x, y);

return StructuredArray.newInstance(

PointArray.class,

Point.class,

length,

// This can be a Lambda expression in Java 8:

new CtorAndArgsProvider<Point>() {

@Override

public CtorAndArgs<Point> getForContext(

ConstructionContext<Point> context) throws NoSuchMethodException {

return xy_ctorAndArgs;

}

});

}

static final Constructor<Point> xy_constructor;

static {

try {

@SuppressWarnings("unchecked")

Constructor<Point> constructor = Point.class.getConstructor(long.class, long.class);

xy_constructor = constructor;

} catch (NoSuchMethodException ex) {

throw new RuntimeException(ex);

}

}