Field Detail

• public static final java.lang.String DELTA_AXES

• public static final java.lang.String DELTA_AXES_COLUMNS

• public static final java.lang.String DELTA_AXIS_COLUMNS

• public static final java.lang.String DELTA_AXIS_META_PUT

• public static final java.lang.String DELTA_AXIS_META_REMOVE

• public static final java.lang.String DELTA_AXIS_REF_CHANGE

• public static final java.lang.String DELTA_AXIS_SORT_CHANGED

• public static final java.lang.String DELTA_CELLS

• public static final java.lang.String DELTA_CELL_REMOVE

• public static final java.lang.String DELTA_COLUMN_ADD

• public static final java.lang.String DELTA_COLUMN_CHANGE

• public static final java.lang.String DELTA_COLUMN_META_PUT

• public static final java.lang.String DELTA_COLUMN_META_REMOVE

• public static final java.lang.String DELTA_COLUMN_REMOVE

• public static final java.lang.String DELTA_NCUBE

• public static final java.lang.String DELTA_NCUBE_META_PUT

• public static final java.lang.String DELTA_NCUBE_META_REMOVE

• public static final java.lang.String DELTA_TESTS

Method Detail

• static boolean areDeltaSetsCompatible(java.util.Map<java.lang.String, java.lang.Object> branchDelta, java.util.Map<java.lang.String, java.lang.Object> headDelta)

  findCol == null 1. you have a value not on the axis and there is no default findCol.default && value != null 1. default column is being added - skip because default already exists 2. value not found but landing on default

• <T> static java.util.Map<java.lang.String, java.lang.Object> getDelta(NCube<T> baseCube, NCube<T> changeCube)

  Fetch the difference between this cube and the passed in cube. The two cubes must have the same number of axes with the same names. If those conditions are met, then this method will return a Map with keys for each delta type. The key DELTA_AXES, contains the non-column differences between the axes. First, it contains a Map of axis name (case-insensitively) to a Map that records the differences. This map may contain the key DELTA_AXIS_SORT_CHANGED, and if so, the associated value is the new int sort order for the axis. This map may also contain the key DELTA_AXIS_REF_CHANGE. If that key is present, then there is a reference axis difference, and all of the keys on the associated Map are the reference axis settings (and transform settings). The key DELTA_AXES_COLUMNS, contains the column differences. The value associated to this key is a Map, that maps axis name (case-insensitively) to a Map where the key is a column and the associated value is either the 'true' (new) or false (if it should be removed). The key DELTA_CELLS, will have an associated value that is a Map, T> which are the cell contents that are different. These cell differences when applied to 'this' will result in this cube's cells matching the passed in 'other'. If the value is NCUBE.REMOVE_CELL, then that indicates a cell that needs to be removed. All other cell values are actual cell value changes.

  Parameters:

  baseCube - NCube considered the original

  changeCube - NCube proposing new changes

  Returns:

  Map containing the proposed differences. If different number of axes, or different axis names, then null is returned. There are three (3) keys currently in this map: DeltaProcessor.DELTA_AXES (Map of axis name to List) DeltaProcessor.DELTA_AXES_COLUMNS (Map of axis name to Map) DeltaProcessor.DELTA_CELLS (Map of coordinates to Delta description at coordinate).

• static java.util.List<Delta> getDeltaDescription(NCube newCube, NCube oldCube)

  Return a list of Delta objects describing the differences between two n-cubes.

  Parameters:

  oldCube - NCube to compare 'this' n-cube to

  Returns:

  List object. The Delta class contains a Location (loc) which describes the part of an n-cube that differs (ncube, axis, column, or cell) and the Type (type) of difference (ADD, UPDATE, or DELETE). Finally, it includes an English description of the difference. NOTE: this will remove test data from the cube in order to not affect sha1 calculation.

• <T> static void mergeDeltaSet(NCube<T> mergeTarget, java.util.Map<java.lang.String, java.lang.Object> deltaSet)

  Merge the passed in cell change-set into this n-cube. This will apply all of the cell changes in the passed in change-set to the cells of this n-cube, including adds and removes.

  Parameters:

  mergeTarget - NCube that has a change-set being merged into it.

  deltaSet - Map containing cell change-set. The cell change-set contains cell coordinates mapped to the associated value to set (or remove) for the given coordinate.