Package io.deephaven.engine.table.impl

Class MemoizedOperationKey

java.lang.Object

io.deephaven.engine.table.impl.MemoizedOperationKey

public abstract class MemoizedOperationKey
extends Object

Indices for memoized operations on QueryTable.

When a null key is returned from one of the static methods; the operation will not be memoized (e.g., if we might depend on the query scope; we can't memoize the operation).

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	MemoizedOperationKey.Provider

Constructor Summary

Constructors

Constructor	Description
MemoizedOperationKey()

Method Summary

Modifier and Type	Method	Description
static MemoizedOperationKey	aggBy(Collection<? extends Aggregation> aggregations, boolean preserveEmpty, Table initialGroups, Collection<? extends ColumnName> groupByColumns)
static MemoizedOperationKey	blinkToAppendOnly(long sizeLimit, @NotNull Object key)
static MemoizedOperationKey	crossJoin(Table rightTable, MatchPair[] columnsToMatch, MatchPair[] columnsToAdd, int numRightBitsToReserve)
protected static boolean	equalWeakRefsByReferentIdentity(WeakReference<?> r1, WeakReference<?> r2)
static MemoizedOperationKey	flatten()
static MemoizedOperationKey	partitionBy(boolean dropKeys, Collection<? extends ColumnName> groupByColumns)
static MemoizedOperationKey	rangeJoin(@NotNull Table rightTable, @NotNull Collection<? extends JoinMatch> exactMatches, @NotNull RangeJoinMatch rangeMatch, @NotNull Collection<? extends Aggregation> aggregations)
static MemoizedOperationKey	reverse()
static MemoizedOperationKey	rollup(Collection<? extends Aggregation> aggregations, Collection<? extends ColumnName> groupByColumns, boolean includeConstituents)
static MemoizedOperationKey	symbolTable(@NotNull SymbolTableSource<?> symbolTableSource, boolean useLookupCaching)
static MemoizedOperationKey	tree(String idColumn, String parentColumn)
static MemoizedOperationKey	wouldMatch(String[] names, WhereFilter... filters)

Methods inherited from class java.lang.Object

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

Constructor Details

MemoizedOperationKey

public MemoizedOperationKey()

Method Details

flatten

public static MemoizedOperationKey flatten()

reverse

public static MemoizedOperationKey reverse()

tree

public static MemoizedOperationKey tree(String idColumn,
 String parentColumn)

aggBy

public static MemoizedOperationKey aggBy(Collection<? extends Aggregation> aggregations,
 boolean preserveEmpty,
 Table initialGroups,
 Collection<? extends ColumnName> groupByColumns)

partitionBy

public static MemoizedOperationKey partitionBy(boolean dropKeys,
 Collection<? extends ColumnName> groupByColumns)

rollup

public static MemoizedOperationKey rollup(Collection<? extends Aggregation> aggregations,
 Collection<? extends ColumnName> groupByColumns,
 boolean includeConstituents)

blinkToAppendOnly

public static MemoizedOperationKey blinkToAppendOnly(long sizeLimit,
 @NotNull
 @NotNull Object key)

symbolTable

public static MemoizedOperationKey symbolTable(@NotNull
 @NotNull SymbolTableSource<?> symbolTableSource,
 boolean useLookupCaching)

wouldMatch

public static MemoizedOperationKey wouldMatch(String[] names,
 WhereFilter... filters)

crossJoin

public static MemoizedOperationKey crossJoin(Table rightTable,
 MatchPair[] columnsToMatch,
 MatchPair[] columnsToAdd,
 int numRightBitsToReserve)

rangeJoin

public static MemoizedOperationKey rangeJoin(@NotNull
 @NotNull Table rightTable,
 @NotNull
 @NotNull Collection<? extends JoinMatch> exactMatches,
 @NotNull
 @NotNull RangeJoinMatch rangeMatch,
 @NotNull
 @NotNull Collection<? extends Aggregation> aggregations)

equalWeakRefsByReferentIdentity

protected static boolean equalWeakRefsByReferentIdentity(WeakReference<?> r1,
 WeakReference<?> r2)