Package io.deephaven.engine.table.impl.indexer

Interface DataIndexer.RetainableDataIndex

All Superinterfaces:

BasicDataIndex, DataIndex, LivenessReferent

All Known Implementing Classes:

RemappedDataIndex

Enclosing class:

DataIndexer

public static interface DataIndexer.RetainableDataIndex
extends DataIndex

Interface for DataIndex implementations that may opt into strong reachability within the DataIndexer's cache.

Nested Class Summary

Nested classes/interfaces inherited from interface io.deephaven.engine.table.DataIndex

DataIndex.RowKeyLookup

Method Summary

Modifier and Type	Method	Description
boolean	shouldRetain()
static boolean	shouldRetain(@NotNull DataIndex dataIndex)

Methods inherited from interface io.deephaven.engine.table.BasicDataIndex

isRefreshing, keyColumnNames, keyColumnNamesByIndexedColumn, keyColumns, keyColumns, rowSetColumn, rowSetColumn, rowSetColumnName, table, table, tableIsCached

Methods inherited from interface io.deephaven.engine.table.DataIndex

remapKeyColumns, rowKeyLookup, rowKeyLookup, rowKeyLookup, transform

Methods inherited from interface io.deephaven.engine.liveness.LivenessReferent

dropReference, getReferentDescription, getWeakReference, retainReference, tryRetainReference

Method Details

shouldRetain

boolean shouldRetain()

Returns:

Whether this should be strongly held (if added) to maintain reachability

shouldRetain

static boolean shouldRetain(@NotNull
 @NotNull DataIndex dataIndex)

Returns:

Whether dataIndex should be strongly held (if added) to maintain reachability