| prefuse.data.util.Index
All known Subclasses: prefuse.data.util.TreeIndex,
| Index | | public interface Index (Code) | | Represents an index over a column of data, allowing quick lookups by
data value and providing iterators over sorted ranges of data. For
convenience, there are index lookup methods for a variety of data
types; which ones to use depend on the data type of the column
being indexed and calling a lookup method for an incompatible
data type could lead to an exception being thrown.
author:
jeffrey heer |
| Field Summary | |
| final public static int | TYPE_AEE
Composite flag for an ascending, left and right exclusive range. | | final public static int | TYPE_AEI
Composite flag for an ascending, left exclusive, right inclusive
range. | | final public static int | TYPE_AIE
Composite flag for an ascending, left inclusive, right exclusive
range. | | final public static int | TYPE_AII
Composite flag for an ascending, left and right inclusive range. | | final public static int | TYPE_ASCENDING
Flag for an ascending sort order. | | final public static int | TYPE_DEE
Composite flag for a descending, left and right exclusive range. | | final public static int | TYPE_DEI
Composite flag for a descending, left exclusive, right inclusive
range. | | final public static int | TYPE_DESCENDING
Flag for a descending sort order. | | final public static int | TYPE_DIE
Composite flag for a descending, left inclusive, right exclusive
range. | | final public static int | TYPE_DII
Composite flag for a descending, left and right inclusive range. | | final public static int | TYPE_LEFT_EXCLUSIVE
Flag for excluding the lowest value of a range. | | final public static int | TYPE_LEFT_INCLUSIVE
Flag for including the lowest value of a range. | | final public static int | TYPE_RIGHT_EXCLUSIVE
Flag for excluding the highest value of a range. | | final public static int | TYPE_RIGHT_INCLUSIVE
Flag for including the highest value of a range. |
| Method Summary | |
| public IntIterator | allRows(int type)
Get an iterator over all rows in the index, in sorted order.
Parameters:
type - the sort type, one of Index.TYPE_ASCENDING orIndex.TYPE_DESCENDING. | | public void | dispose()
Dispose of an index, deregistering all listeners. | | public int | get(Object x)
Get the first row found with the given data value. | | public int | get(int x)
Get the first row found with the given data value. | | public int | get(long x)
Get the first row found with the given data value. | | public int | get(float x)
Get the first row found with the given data value. | | public int | get(double x)
Get the first row found with the given data value. | | public Comparator | getComparator()
Get the comparator used to compare column data values. | | public void | index()
Perform an initial indexing of a data column. | | public int | maximum()
Get the row (or one of the rows) with the maximum data value. | | public int | median()
Get the row (or one of the rows) with the median data value. | | public int | minimum()
Get the row (or one of the rows) with the minimum data value. | | public IntIterator | rows(Object lo, Object hi, int type)
Get an iterator over a sorted range of rows. | | public IntIterator | rows(int lo, int hi, int type)
Get an iterator over a sorted range of rows. | | public IntIterator | rows(long lo, long hi, int type)
Get an iterator over a sorted range of rows. | | public IntIterator | rows(float lo, float hi, int type)
Get an iterator over a sorted range of rows. | | public IntIterator | rows(double lo, double hi, int type)
Get an iterator over a sorted range of rows. | | public IntIterator | rows(Object val)
Get an iterator over all rows with the given data value. | | public IntIterator | rows(int val)
Get an iterator over all rows with the given data value. | | public IntIterator | rows(long val)
Get an iterator over all rows with the given data value. | | public IntIterator | rows(float val)
Get an iterator over all rows with the given data value. | | public IntIterator | rows(double val)
Get an iterator over all rows with the given data value. | | public IntIterator | rows(boolean val)
Get an iterator over all rows with the given data value. | | public int | size()
Get the size of this index, the number of data value / row
pairs included. | | public int | uniqueCount()
Get the number of unique data values in the index. |
| TYPE_AEE | | final public static int TYPE_AEE(Code) | | Composite flag for an ascending, left and right exclusive range.
|
| TYPE_AEI | | final public static int TYPE_AEI(Code) | | Composite flag for an ascending, left exclusive, right inclusive
range.
|
| TYPE_AIE | | final public static int TYPE_AIE(Code) | | Composite flag for an ascending, left inclusive, right exclusive
range.
|
| TYPE_AII | | final public static int TYPE_AII(Code) | | Composite flag for an ascending, left and right inclusive range.
|
| TYPE_ASCENDING | | final public static int TYPE_ASCENDING(Code) | | Flag for an ascending sort order.
|
| TYPE_DEE | | final public static int TYPE_DEE(Code) | | Composite flag for a descending, left and right exclusive range.
|
| TYPE_DEI | | final public static int TYPE_DEI(Code) | | Composite flag for a descending, left exclusive, right inclusive
range.
|
| TYPE_DESCENDING | | final public static int TYPE_DESCENDING(Code) | | Flag for a descending sort order.
|
| TYPE_DIE | | final public static int TYPE_DIE(Code) | | Composite flag for a descending, left inclusive, right exclusive
range.
|
| TYPE_DII | | final public static int TYPE_DII(Code) | | Composite flag for a descending, left and right inclusive range.
|
| TYPE_LEFT_EXCLUSIVE | | final public static int TYPE_LEFT_EXCLUSIVE(Code) | | Flag for excluding the lowest value of a range.
|
| TYPE_LEFT_INCLUSIVE | | final public static int TYPE_LEFT_INCLUSIVE(Code) | | Flag for including the lowest value of a range.
|
| TYPE_RIGHT_EXCLUSIVE | | final public static int TYPE_RIGHT_EXCLUSIVE(Code) | | Flag for excluding the highest value of a range.
|
| TYPE_RIGHT_INCLUSIVE | | final public static int TYPE_RIGHT_INCLUSIVE(Code) | | Flag for including the highest value of a range.
|
| dispose | | public void dispose()(Code) | | Dispose of an index, deregistering all listeners.
|
| get | | public int get(Object x)(Code) | | Get the first row found with the given data value.
Parameters:
x - the data value the first row matching the data value |
| get | | public int get(int x)(Code) | | Get the first row found with the given data value.
Parameters:
x - the data value the first row matching the data value |
| get | | public int get(long x)(Code) | | Get the first row found with the given data value.
Parameters:
x - the data value the first row matching the data value |
| get | | public int get(float x)(Code) | | Get the first row found with the given data value.
Parameters:
x - the data value the first row matching the data value |
| get | | public int get(double x)(Code) | | Get the first row found with the given data value.
Parameters:
x - the data value the first row matching the data value |
| getComparator | | public Comparator getComparator()(Code) | | Get the comparator used to compare column data values.
the sort comparator |
| index | | public void index()(Code) | | Perform an initial indexing of a data column.
|
| maximum | | public int maximum()(Code) | | Get the row (or one of the rows) with the maximum data value.
a row with a maximum data value |
| median | | public int median()(Code) | | Get the row (or one of the rows) with the median data value.
a row with a median data value |
| minimum | | public int minimum()(Code) | | Get the row (or one of the rows) with the minimum data value.
a row with a minimum data value |
| rows | | public IntIterator rows(Object lo, Object hi, int type)(Code) | | Get an iterator over a sorted range of rows.
Parameters:
lo - the minimum data value
Parameters:
hi - the maximum data value
Parameters:
type - the iteration type, one of the composite flagsinvolving both a sort order, and whether each bound ofthe range should inclusive or exclusive an iterator over a sorted range of rows |
| rows | | public IntIterator rows(int lo, int hi, int type)(Code) | | Get an iterator over a sorted range of rows.
Parameters:
lo - the minimum data value
Parameters:
hi - the maximum data value
Parameters:
type - the iteration type, one of the composite flagsinvolving both a sort order, and whether each bound ofthe range should inclusive or exclusive an iterator over a sorted range of rows |
| rows | | public IntIterator rows(long lo, long hi, int type)(Code) | | Get an iterator over a sorted range of rows.
Parameters:
lo - the minimum data value
Parameters:
hi - the maximum data value
Parameters:
type - the iteration type, one of the composite flagsinvolving both a sort order, and whether each bound ofthe range should inclusive or exclusive an iterator over a sorted range of rows |
| rows | | public IntIterator rows(float lo, float hi, int type)(Code) | | Get an iterator over a sorted range of rows.
Parameters:
lo - the minimum data value
Parameters:
hi - the maximum data value
Parameters:
type - the iteration type, one of the composite flagsinvolving both a sort order, and whether each bound ofthe range should inclusive or exclusive an iterator over a sorted range of rows |
| rows | | public IntIterator rows(double lo, double hi, int type)(Code) | | Get an iterator over a sorted range of rows.
Parameters:
lo - the minimum data value
Parameters:
hi - the maximum data value
Parameters:
type - the iteration type, one of the composite flagsinvolving both a sort order, and whether each bound ofthe range should inclusive or exclusive an iterator over a sorted range of rows |
| rows | | public IntIterator rows(Object val)(Code) | | Get an iterator over all rows with the given data value.
Parameters:
val - the data value an iterator over all rows matching the data value |
| rows | | public IntIterator rows(int val)(Code) | | Get an iterator over all rows with the given data value.
Parameters:
val - the data value an iterator over all rows matching the data value |
| rows | | public IntIterator rows(long val)(Code) | | Get an iterator over all rows with the given data value.
Parameters:
val - the data value an iterator over all rows matching the data value |
| rows | | public IntIterator rows(float val)(Code) | | Get an iterator over all rows with the given data value.
Parameters:
val - the data value an iterator over all rows matching the data value |
| rows | | public IntIterator rows(double val)(Code) | | Get an iterator over all rows with the given data value.
Parameters:
val - the data value an iterator over all rows matching the data value |
| rows | | public IntIterator rows(boolean val)(Code) | | Get an iterator over all rows with the given data value.
Parameters:
val - the data value an iterator over all rows matching the data value |
| size | | public int size()(Code) | | Get the size of this index, the number of data value / row
pairs included.
the size of the index |
| uniqueCount | | public int uniqueCount()(Code) | | Get the number of unique data values in the index.
the number of unique data values |
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