Package io.deephaven.engine.testutil.generator

Class AbstractSortedGenerator<T extends Comparable<? super T>>

java.lang.Object

io.deephaven.engine.testutil.generator.AbstractSortedGenerator<T>

All Implemented Interfaces:

TestDataGenerator<T,T>

Direct Known Subclasses:

DateGenerator, SortedBigIntegerGenerator, SortedDateTimeGenerator

public abstract class AbstractSortedGenerator<T extends Comparable<? super T>>
extends Object
implements TestDataGenerator<T,T>

Generates a sorted column of objects. 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
AbstractSortedGenerator()

Method Summary

Modifier and Type	Method	Description
Class<T>	getColumnType()
void	onRemove(ReadOnlyIndex toRemove)	Called after a key has been removed from the map.
Chunk<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

Methods inherited from interface io.deephaven.engine.testutil.generator.TestDataGenerator

getType

Constructor Details

AbstractSortedGenerator

public AbstractSortedGenerator()

Method Details

populateChunk

public Chunk<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<T extends Comparable<? super T>,T extends Comparable<? super T>>

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

getColumnType

public Class<T> getColumnType()

Specified by:

getColumnType in interface TestDataGenerator<T extends Comparable<? super T>,T extends Comparable<? super T>>

Returns:

the type of the generated column

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<T extends Comparable<? super T>,T extends Comparable<? super T>>

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<T extends Comparable<? super T>,T extends Comparable<? super T>>

Parameters:

start - the start of the range to shift

end - the end of the range to shift

delta - the delta for the shift