net.sf.farrago.fem.fennel
Class FemWindowDefClass$Hib

java.lang.Object
  org.eigenbase.enki.jmi.impl.RefBaseObjectBase
      org.eigenbase.enki.jmi.impl.RefFeaturedBase
          org.eigenbase.enki.jmi.impl.RefClassBase
              net.sf.farrago.fem.fennel.FemWindowDefClass$Hib

All Implemented Interfaces:

RefBaseObject, RefClass, RefFeatured, FemWindowDefClass

public class FemWindowDefClass$Hib
extends RefClassBase
implements FemWindowDefClass

Implements MOF's WindowDef class proxy interface.

Author:

MofImplementationHandler

The definition of a window inside a FemWindowStreamDef.

A window has either a logical or physical range, and contains a number of partitions:

• A logical window is defined by a range of values, and may have several partitions.
• A physical window is defined by a range of rows, and may have several partitions.

Constructor Summary

FemWindowDefClass$Hib(RefPackage container)

Method Summary

protected void	checkConstraints(List<JmiException> errors, boolean deepVerify)
FemWindowDef	createFemWindowDef() The default factory operation used to create an instance object.
FemWindowDef	createFemWindowDef(FemTupleProjection orderKeyList, boolean physical, String range, int offset) Creates an instance object having attributes initialized by the passed values.
Class<?>	getInstanceClass()

Methods inherited from class org.eigenbase.enki.jmi.impl.RefClassBase

getRepository, refAllOfClass, refAllOfType, refCreateInstance, refCreateStruct, refCreateStruct, refGetEnum, refGetEnum, refImmediatePackage, register, unregister

Methods inherited from class org.eigenbase.enki.jmi.impl.RefFeaturedBase

refGetValue, refGetValue, refInvokeOperation, refInvokeOperation, refSetValue, refSetValue

Methods inherited from class org.eigenbase.enki.jmi.impl.RefBaseObjectBase

createInstance, equals, getCurrentInitializer, getEnum, getInitializer, getMofId, getTag, hashCode, invokeMethod, invokeMethod, logJmi, refMetaObject, refMofId, refOutermostPackage, refVerifyConstraints, setMofId, setRefMetaObject

Methods inherited from class java.lang.Object

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

Methods inherited from interface javax.jmi.reflect.RefClass

refAllOfClass, refAllOfType, refCreateInstance, refCreateStruct, refCreateStruct, refGetEnum, refGetEnum

Methods inherited from interface javax.jmi.reflect.RefFeatured

refGetValue, refGetValue, refInvokeOperation, refInvokeOperation, refSetValue, refSetValue

Methods inherited from interface javax.jmi.reflect.RefBaseObject

equals, hashCode, refImmediatePackage, refMetaObject, refMofId, refOutermostPackage, refVerifyConstraints

Constructor Detail

FemWindowDefClass$Hib

FemWindowDefClass$Hib(RefPackage container)

Method Detail

createFemWindowDef

public FemWindowDef createFemWindowDef()

Description copied from interface: FemWindowDefClass

The default factory operation used to create an instance object.

Specified by:

createFemWindowDef in interface FemWindowDefClass

Returns:

The created instance object.

createFemWindowDef

public FemWindowDef createFemWindowDef(FemTupleProjection orderKeyList,
                                       boolean physical,
                                       String range,
                                       int offset)

Description copied from interface: FemWindowDefClass

Creates an instance object having attributes initialized by the passed values.

Specified by:

createFemWindowDef in interface FemWindowDefClass

Parameters:

orderKeyList -

List of columns to sort the window on. For example, in WINDOW w AS (ORDER BY hiredate PARTITION BY gender ROWS 5 PRECEDING), the order list is "hiredate".

Often the optimizer will have ensured that the input stream is already sorted on the sort key, or at least a subset of it; for infinite relations, this is required in order to perform aggregation. See FemWindowStreamDef.getInputOrderKeyList().

physical -

True if the window is physical (defined by a number of rows); false if the window is logical (defined by a range of values).

range -

If physical, the number of rows; if logical, the value range (for example, 3,600,000 milliseconds).

offset -

This is the offset of the window. Positive value refers to a leading window and negative value refers to a trailing window.

Returns:

The created instance object.

checkConstraints

protected void checkConstraints(List<JmiException> errors,
                                boolean deepVerify)

Specified by:

checkConstraints in class RefBaseObjectBase

getInstanceClass

public Class<?> getInstanceClass()

Specified by:

getInstanceClass in class RefClassBase