Package io.deephaven.engine.table.iterators

Class SerialColumnIterator<DATA_TYPE>

java.lang.Object

io.deephaven.engine.table.iterators.SerialColumnIterator<DATA_TYPE>

All Implemented Interfaces:

CloseableIterator<DATA_TYPE>, ValueIterator<DATA_TYPE>, ColumnIterator<DATA_TYPE>, SafeCloseable, AutoCloseable, Iterator<DATA_TYPE>

Direct Known Subclasses:

SerialByteColumnIterator, SerialCharacterColumnIterator, SerialDoubleColumnIterator, SerialFloatColumnIterator, SerialIntegerColumnIterator, SerialLongColumnIterator, SerialObjectColumnIterator, SerialShortColumnIterator

public abstract class SerialColumnIterator<DATA_TYPE>
extends Object
implements ColumnIterator<DATA_TYPE>

Iteration support for values supplied by a ColumnSource. Implementations retrieve single values at a time in a usually-discouraged Deephaven engine retrieval pattern. This is expected to be low throughput relative to ChunkedColumnIterator implementations, but may avoid material initialization and teardown costs for small or sparse iterations.

Field Summary

Fields inherited from interface io.deephaven.engine.primitive.value.iterator.ValueIterator

EMPTY

Method Summary

Modifier and Type	Method	Description
final boolean	hasNext()
static <DATA_TYPE> ColumnIterator<DATA_TYPE>	make(@NotNull ColumnSource<DATA_TYPE> columnSource, @NotNull RowSet rowSet)
final long	remaining()

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.table.iterators.ColumnIterator

close

Methods inherited from interface java.util.Iterator

forEachRemaining, next, remove

Methods inherited from interface io.deephaven.engine.primitive.value.iterator.ValueIterator

stream

Method Details

remaining

public final long remaining()

Specified by:

remaining in interface ValueIterator<DATA_TYPE>

Returns:

The number of elements remaining in this ValueIterator

hasNext

public final boolean hasNext()

Specified by:

hasNext in interface Iterator<DATA_TYPE>

make

public static <DATA_TYPE> ColumnIterator<DATA_TYPE> make(@NotNull
 @NotNull ColumnSource<DATA_TYPE> columnSource,
 @NotNull
 @NotNull RowSet rowSet)