Package com.espertech.esper.common.internal.epl.join.queryplan

Class TableLookupPlanForge

java.lang.Object

com.espertech.esper.common.internal.epl.join.queryplan.TableLookupPlanForge

All Implemented Interfaces:

CodegenMakeable<SAIFFInitializeSymbol>

Direct Known Subclasses:

CompositeTableLookupPlanForge, FullTableScanLookupPlanForge, FullTableScanUniquePerKeyLookupPlanForge, IndexedTableLookupPlanHashedOnlyForge, InKeywordTableLookupPlanMultiIdxForge, InKeywordTableLookupPlanSingleIdxForge, SortedTableLookupPlanForge

public abstract class TableLookupPlanForge
extends Object
implements CodegenMakeable<SAIFFInitializeSymbol>

Abstract specification on how to perform a table lookup.

Field Summary

Fields

Modifier and Type	Field	Description
protected final int	indexedStream
protected boolean	indexedStreamIsVDW
protected final int	lookupStream
protected EventType[]	typesPerStream

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	TableLookupPlanForge(int lookupStream, int indexedStream, boolean indexedStreamIsVDW, EventType[] typesPerStream, TableLookupIndexReqKey[] indexNum)	Ctor.

Method Summary

Modifier and Type	Method	Description
abstract Collection<CodegenExpression>	additionalParams(CodegenMethod method, SAIFFInitializeSymbol symbols, CodegenClassScope classScope)
int	getIndexedStream()	Returns indexed stream.
TableLookupIndexReqKey[]	getIndexNum()	Returns index number to use for looking up in.
abstract TableLookupKeyDesc	getKeyDescriptor()
int	getLookupStream()	Returns the lookup stream.
CodegenExpression	make(CodegenMethodScope parent, SAIFFInitializeSymbol symbols, CodegenClassScope classScope)
String	toString()
abstract EPTypeClass	typeOfPlanFactory()

Methods inherited from class java.lang.Object

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

Field Details

lookupStream

protected final int lookupStream

indexedStream

protected final int indexedStream

indexedStreamIsVDW

protected boolean indexedStreamIsVDW

typesPerStream

protected EventType[] typesPerStream

Constructor Details

TableLookupPlanForge

protected TableLookupPlanForge(int lookupStream,
 int indexedStream,
 boolean indexedStreamIsVDW,
 EventType[] typesPerStream,
 TableLookupIndexReqKey[] indexNum)

Ctor.

Parameters:

lookupStream - - stream number of stream that supplies event to be used to look up

indexedStream - - - stream number of stream that is being access via index/table

indexedStreamIsVDW - - vdw indicators

typesPerStream - types

indexNum - - index to use for lookup

Method Details

getKeyDescriptor

public abstract TableLookupKeyDesc getKeyDescriptor()

typeOfPlanFactory

public abstract EPTypeClass typeOfPlanFactory()

additionalParams

public abstract Collection<CodegenExpression> additionalParams(CodegenMethod method,
 SAIFFInitializeSymbol symbols,
 CodegenClassScope classScope)

getLookupStream

public int getLookupStream()

Returns the lookup stream.

Returns:

lookup stream

getIndexedStream

public int getIndexedStream()

Returns indexed stream.

Returns:

indexed stream

getIndexNum

public TableLookupIndexReqKey[] getIndexNum()

Returns index number to use for looking up in.

Returns:

index number

toString

public String toString()

Overrides:

toString in class Object

make

public CodegenExpression make(CodegenMethodScope parent,
 SAIFFInitializeSymbol symbols,
 CodegenClassScope classScope)

Specified by:

make in interface CodegenMakeable<SAIFFInitializeSymbol>