/**
* returns a subset of this column with entried from rows indicated by <code>indices</code>.
*
* @param indices row numbers to include in the returned subset.
* @return a subset of this column, including rows indicated by <code>indices</code>.
*/
public Column getSubset(int[] indices) {
SparseObjectColumn retVal = new SparseObjectColumn(indices.length);
for (int i = 0; i < indices.length; i++) {
if (elements.containsKey(indices[i])) {
// XIAOLEI
// retVal.setObject(getObject(indices[i]), indices[i]);
retVal.setObject(getObject(indices[i]), i);
}
}
super.getSubset(retVal, indices);
return retVal;
}
/**
* Inserts a new entry in the Column at position <code>pos</code>. All entries at row numbers
* greater than <codE>pos</code> are moved down the column to the next row.
*
* @param newEntry the newEntry to insert
* @param pos the position to insert at
*/
public void insertRow(Object newEntry, int pos) {
switch (getType()) {
case ColumnTypes.BYTE_ARRAY:
newEntry = SparseByteArrayColumn.toByteArray(newEntry);
break;
case ColumnTypes.CHAR_ARRAY:
newEntry = SparseCharArrayColumn.toCharArray(newEntry);
break;
case ColumnTypes.STRING:
newEntry = SparseStringColumn.toStringObject(newEntry);
break;
}
super.insertRow(newEntry, pos);
}
public void copy(AbstractSparseColumn srcCol) {
if (srcCol instanceof SparseObjectColumn) {
elements = (VIntObjectHashMap) ((SparseObjectColumn) srcCol).elements.copy();
}
super.copy(srcCol);
}