Package io.deephaven.engine.testutil.generator

Class UniqueLongGenerator

java.lang.Object

io.deephaven.engine.testutil.generator.UniqueLongGenerator

All Implemented Interfaces:

TestDataGenerator<Long,Long>, UniqueTestDataGenerator<Long,Long>

public class UniqueLongGenerator
extends Object
implements UniqueTestDataGenerator<Long,Long>

Generates unique random longacter values.

Constructor Summary

Constructors

Constructor	Description
UniqueLongGenerator(long from, long to)
UniqueLongGenerator(long from, long to, double nullFraction)

Method Summary

Modifier and Type	Method	Description
Class<Long>	getColumnType()
Long	getRandomValue(Random random)	Get one random value from the generated set of values.
Class<Long>	getType()
boolean	hasValues()	Are there any values that have been generated?
void	onRemove(ReadOnlyIndex toRemove)	Called after a key has been removed from the map.
LongChunk<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

UniqueLongGenerator

public UniqueLongGenerator(long from,
 long to)

UniqueLongGenerator

public UniqueLongGenerator(long from,
 long to,
 double nullFraction)

Method Details

populateChunk

public LongChunk<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<Long,Long>

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<Long,Long>

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<Long,Long>

Parameters:

start - the start of the range to shift

end - the end of the range to shift

delta - the delta for the shift

hasValues

public boolean hasValues()

Description copied from interface: UniqueTestDataGenerator

Are there any values that have been generated?

Specified by:

hasValues in interface UniqueTestDataGenerator<Long,Long>

Returns:

if there are any internally stored values?

getRandomValue

public Long getRandomValue(Random random)

Description copied from interface: UniqueTestDataGenerator

Get one random value from the generated set of values. hasValues must be true before calling this function.

Specified by:

getRandomValue in interface UniqueTestDataGenerator<Long,Long>

Parameters:

random - the random number generator to use

Returns:

a random value that has already been generated

getType

public Class<Long> getType()

Specified by:

getType in interface TestDataGenerator<Long,Long>

Returns:

the type of the chunk that we populate

getColumnType

public Class<Long> getColumnType()

Specified by:

getColumnType in interface TestDataGenerator<Long,Long>

Returns:

the type of the generated column