oracle.olapi.metadata.mtm
Class MtmStoredAttributeMap

java.lang.Object
  |
  +--oracle.olapi.metadata.BaseMetadataObject
        |
        +--oracle.olapi.metadata.mtm.MtmObject
              |
              +--oracle.olapi.metadata.mtm.MtmSourceMap
                    |
                    +--oracle.olapi.metadata.mtm.MtmAttributeMap
                          |
                          +--oracle.olapi.metadata.mtm.MtmStoredAttributeMap

public class MtmStoredAttributeMap

extends MtmAttributeMap

An MtmAttributeMap for an MdmAttribute whose values are explicitly stored in a particular column or columns of a dimension table. An MtmStoredAttributeMap holds different storage information for each of its MdmDimension objects.

Note that when the hierarchy is unsolved, then the values for an MtmStoredAttributeMap are actually derived.

Method Summary

java.lang.Object	acceptVisitor(MtmObjectVisitor visitor, java.lang.Object context) Calls the visitMtmStoredAttributeMap method of the specified MtmObjectVisitor and passes that method this MtmStoredAttributeMap and the specified context object.
MtmValueExpression	getDefaultMappedExpression() Gets the default MtmValueExpression that Oracle OLAP uses as the attribute value for dimension elements for which the user expression or table column does not specify a value.
MtmValueExpression	getMappedExpression(MtmDimensionMap dimensionMap) Gets the MtmValueExpression that describes the user expression or dimension table columns that hold the attribute values for this MtmStoredAttributeMap for the specified MtmDimensionMap.
void	setDefaultMappedExpression(MtmValueExpression expression) Specifies a default MtmValueExpression for Oracle OLAP to use as the attribute value for dimension elements for which the user expression or table column does not specify a value.
void	setMappedExpression(MtmDimensionMap dimensionMap, MtmValueExpression expression) Specifies the MtmValueExpression that describes the user expression or dimension table columns that hold the attribute values for this MtmStoredAttributeMap for the specified MtmDimensionMap.

Methods inherited from class oracle.olapi.metadata.mtm.MtmSourceMap

getMdmSource, setMdmSource

Methods inherited from class oracle.olapi.metadata.BaseMetadataObject

getID

Methods inherited from class java.lang.Object

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

Method Detail

acceptVisitor

public java.lang.Object acceptVisitor(MtmObjectVisitor visitor,
                                      java.lang.Object context)

Calls the visitMtmStoredAttributeMap method of the specified MtmObjectVisitor and passes that method this MtmStoredAttributeMap and the specified context object.

Overrides:

acceptVisitor in class MtmObject

Parameters:

visitor - An MtmObjectVisitor.

context - An Object.

Returns:

The Object returned by the visitMtmStoredAttributeMap method.

getMappedExpression

public MtmValueExpression getMappedExpression(MtmDimensionMap dimensionMap)

Gets the MtmValueExpression that describes the user expression or dimension table columns that hold the attribute values for this MtmStoredAttributeMap for the specified MtmDimensionMap.

Parameters:

dimensionMap - The MtmDimensionMap for which you want the MtmValueExpression of this MtmStoredAttributeMap.

Returns:

The MtmValueExpression for this MtmStoredAttributeMap, given the specified MtmDimensionMap.

setMappedExpression

public void setMappedExpression(MtmDimensionMap dimensionMap,
                                MtmValueExpression expression)

Specifies the MtmValueExpression that describes the user expression or dimension table columns that hold the attribute values for this MtmStoredAttributeMap for the specified MtmDimensionMap.

Parameters:

dimensionMap - The MtmDimensionMap for which you want to specify the MtmValueExpression of this MtmStoredAttributeMap.

expression - The MtmValueExpression for this MtmStoredAttributeMap and the specified MtmDimensionMap.

getDefaultMappedExpression

public MtmValueExpression getDefaultMappedExpression()

Gets the default MtmValueExpression that Oracle OLAP uses as the attribute value for dimension elements for which the user expression or table column does not specify a value.

Returns:

The MtmValueExpression that is the default attribute value for this MtmStoredAttributeMap.

setDefaultMappedExpression

public void setDefaultMappedExpression(MtmValueExpression expression)

Specifies a default MtmValueExpression for Oracle OLAP to use as the attribute value for dimension elements for which the user expression or table column does not specify a value. For example, if an attribute column of String values has values for the elements of some dimension hierarchies but not for others, you might want to have the default expression be a constant null expression. The attribute value would then be null for any hierarchy element that does not have an explicit mapping for the attribute.

The default expression specified must be valid for all dimension tables, so it must, therefore, be a constant expression or a calculation based on columns that appear in every dimension table.

Parameters:

expression - An MtmValueExpression to use as the default attribute value for this MtmStoredAttributeMap for the specified MtmDimensionMap.