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 and Description
protected int	indexedStream
protected boolean	indexedStreamIsVDW
protected int	lookupStream
protected EventType[]	typesPerStream

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and 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 Class	typeOfPlanFactory()

Methods inherited from class java.lang.Object

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

Field Detail

lookupStream

protected final int lookupStream

indexedStream

protected final int indexedStream

indexedStreamIsVDW

protected boolean indexedStreamIsVDW

typesPerStream

protected EventType[] typesPerStream

Constructor Detail

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 Detail

getKeyDescriptor

public abstract TableLookupKeyDesc getKeyDescriptor()

typeOfPlanFactory

public abstract Class 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>