com.google.uzaygezen.core

Interface ZoomingNavigator

All Known Implementing Classes:

ZoomingSpaceVisitorAdapter

public interface ZoomingNavigator

Provides the ability to visit a multidimensional space by starting at the root level, where no bits are set or meaningful in any of the dimensions. Since each dimension can have a different number of bits, at the highest levels only some of the dimensions will be meaningful, the other dimensions being represented instead as all zeroes. Implementations will usually have a way to remember the specification of the multidimensional spec in the form of a MultiDimensionalSpec object, but they are not required to do so.

Author:

Daniel Aioanei

Method Summary

Methods

Modifier and Type	Method and Description
boolean	visit(int level, BitVector index, BitVector[] p)

Method Detail

visit

boolean visit(int level,
            BitVector index,
            BitVector[] p)

Parameters:

level - 0 <= level <= mMax. When level==mMax all coordinates are zero.

index - the index bits calculated from level mMax - 1 down to to level; the remaining low order bits are guaranteed to be clear. This parameter is owned by the caller and must not be modified by ZoomingNavigator implementations.

p - only bits from max(i, mMax - m[i]) (inclusive) to mMax (exclusive) are meaningful, and the other bits are guaranteed to be zero. This parameter is fully owned by the caller and it must not be either modified, or expected to stay the same over time.

Returns:

true if we want to see the children; false otherwise. At the deepest level the return value is normally ignored since there are no more children to show.