Package io.deephaven.engine.testutil.generator

Class SortedCharGenerator

java.lang.Object

io.deephaven.engine.testutil.generator.SortedCharGenerator

All Implemented Interfaces:

TestDataGenerator<Character,Character>

public class SortedCharGenerator
extends Object
implements TestDataGenerator<Character,Character>

Generates a sorted column of characters. Some query operations require sorted values as input, the sorted generators creates columns that are in sorted order. Internally, an Index of current values plus a hashmap of those values is maintained. When new rows are added, the values are randomly selected between the prior and next point.

Constructor Summary

Constructors

Constructor	Description
SortedCharGenerator(char minValue, char maxValue)

Method Summary

Modifier and Type	Method	Description
Class<Character>	getColumnType()
Class<Character>	getType()
void	onRemove(ReadOnlyIndex toRemove)	Called after a key has been removed from the map.
CharChunk<Attributes.Values>	populateChunk(ReadOnlyIndex toAdd, Random random)	Create a chunk for the given index using random for any desired entropy.
void	shift(long start, long end, long delta)	Called when a range is shifted.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

SortedCharGenerator

public SortedCharGenerator(char minValue,
 char maxValue)

Method Details

getType

public Class<Character> getType()

Specified by:

getType in interface TestDataGenerator<Character,Character>

Returns:

the type of the chunk that we populate

getColumnType

public Class<Character> getColumnType()

Specified by:

getColumnType in interface TestDataGenerator<Character,Character>

Returns:

the type of the generated column

populateChunk

public CharChunk<Attributes.Values> populateChunk(ReadOnlyIndex toAdd,
 Random random)

Description copied from interface: TestDataGenerator

Create a chunk for the given index using random for any desired entropy.

Specified by:

populateChunk in interface TestDataGenerator<Character,Character>

Parameters:

toAdd - the index to add values for

random - the random number generator used for this test

Returns:

a chunk of primitives or boxed objects of type U

onRemove

public void onRemove(ReadOnlyIndex toRemove)

Description copied from interface: TestDataGenerator

Called after a key has been removed from the map.

Specified by:

onRemove in interface TestDataGenerator<Character,Character>

Parameters:

toRemove - the index that was removed

shift

public void shift(long start,
 long end,
 long delta)

Description copied from interface: TestDataGenerator

Called when a range is shifted.

Specified by:

shift in interface TestDataGenerator<Character,Character>

Parameters:

start - the start of the range to shift

end - the end of the range to shift

delta - the delta for the shift