mondrian.olap
Class MemberBase

java.lang.Object
  mondrian.olap.OlapElementBase
      mondrian.olap.MemberBase

All Implemented Interfaces:

Comparable, Member, OlapElement

Direct Known Subclasses:

RolapMember

public abstract class MemberBase
extends OlapElementBase
implements Member

MemberBase is a partial implementation of Member.

Since:

6 August, 2001

Version:

$Id: //open/mondrian-release/3.0/src/main/mondrian/olap/MemberBase.java#3 $

Author:

jhyde

Nested Class Summary

Nested classes/interfaces inherited from interface mondrian.olap.Member

Member.MemberType

Field Summary

protected int	flags Combines member type and other properties, such as whether the member is the 'all' or 'null' member of its hierarchy and whether it is a measure or is calculated, into an integer field.
protected Level	level
protected Member	parentMember
protected String	parentUniqueName
protected String	uniqueName

Fields inherited from class mondrian.olap.OlapElementBase

caption

Constructor Summary

protected	MemberBase()
protected	MemberBase(Member parentMember, Level level, Member.MemberType memberType)

Method Summary

protected boolean	computeCalculated(Member.MemberType memberType) Computes the value to be returned by isCalculated(), so it can be cached in a variable.
Member[]	getAncestorMembers() Returns array of all members, which are ancestor to this.
String	getCaption() Returns the display name of this catalog element.
Member	getDataMember() Returns the system-generated data member that is associated with a nonleaf member of a dimension.
String	getDescription()
Dimension	getDimension() Returns the dimension of a this expression, or null if no dimension is defined.
Exp	getExpression() Returns the expression by which this member is calculated.
Hierarchy	getHierarchy()
Level	getLevel()
Member.MemberType	getMemberType() Returns the type of member.
abstract String	getName()
Comparable	getOrderKey() Returns the order key of this member among its siblings.
int	getOrdinal() Returns the ordinal of this member within its hierarchy.
Member	getParentMember() Returns this member's parent, or null (not the 'null member', as returned by Hierarchy.getNullMember()) if it has no parent.
String	getParentUniqueName() Returns name of parent member, or empty string (not null) if we are the root.
String	getPropertyFormattedValue(String propertyName) Returns the formatted value of the property named propertyName.
String	getQualifiedName() Returns the name of this element qualified by its class, for example "hierarchy 'Customers'".
int	getSolveOrder()
String	getUniqueName()
boolean	isAll() Returns whether this is the 'all' member.
boolean	isCalculated() Returns whether this member is computed using either a with member clause in an mdx query or a calculated member defined in cube.
boolean	isChildOrEqualTo(Member member) Returns whether member is equal to, a child, or a descendent of this Member.
boolean	isChildOrEqualTo(String uniqueName) Returns whether this Member's unique name is equal to, a child of, or a descendent of a member whose unique name is uniqueName.
boolean	isHidden() Returns whether this member is 'hidden', as per the rules which define a ragged hierarchy.
boolean	isMeasure() Returns whether this is a member of the measures dimension.
boolean	isNull() Returns whether this is the 'null member'.
OlapElement	lookupChild(SchemaReader schemaReader, Id.Segment childName) Looks up a child element, returning null if it does not exist.
OlapElement	lookupChild(SchemaReader schemaReader, Id.Segment childName, MatchType matchType)

Methods inherited from class mondrian.olap.OlapElementBase

clone, computeHashCode, equals, equals, getLogger, hashCode, setCaption, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface mondrian.olap.Member

getDepth, getProperties, getPropertyValue, getPropertyValue, isCalculatedInQuery, setName, setProperty

Methods inherited from interface java.lang.Comparable

compareTo

Field Detail

parentMember

protected Member parentMember

level

protected final Level level

uniqueName

protected String uniqueName

flags

protected final int flags

Combines member type and other properties, such as whether the member is the 'all' or 'null' member of its hierarchy and whether it is a measure or is calculated, into an integer field.

The fields are:

• bits 0, 1, 2 (FLAG_TYPE_MASK) are member type;
• bit 3 (FLAG_HIDDEN) is set if the member is hidden;
• bit 4 (FLAG_ALL) is set if this is the all member of its hierarchy;
• bit 5 (FLAG_NULL) is set if this is the null member of its hierarchy;
• bit 6 (FLAG_CALCULATED) is set if this is a calculated member.
• bit 7 (FLAG_MEASURE) is set if this is a measure.

NOTE: jhyde, 2007/8/10. It is necessary to cache whether the member is 'all', 'calculated' or 'null' in the member's state, because these properties are used so often. If we used a virtual method call - say we made each subclass implement 'boolean isNull()' - it would be slower. We use one flags field rather than 4 boolean fields to save space.

parentUniqueName

protected String parentUniqueName

Constructor Detail

MemberBase

protected MemberBase(Member parentMember,
                     Level level,
                     Member.MemberType memberType)

MemberBase

protected MemberBase()

Method Detail

getQualifiedName

public String getQualifiedName()

Description copied from interface: OlapElement

Returns the name of this element qualified by its class, for example "hierarchy 'Customers'".

Specified by:

getQualifiedName in interface OlapElement

getName

public abstract String getName()

Specified by:

getName in interface OlapElement

getUniqueName

public String getUniqueName()

Specified by:

getUniqueName in interface OlapElement

getCaption

public String getCaption()

Description copied from class: OlapElementBase

Returns the display name of this catalog element. If no caption is defined, the name is returned.

Specified by:

getCaption in interface OlapElement

Overrides:

getCaption in class OlapElementBase

getParentUniqueName

public String getParentUniqueName()

Description copied from interface: Member

Returns name of parent member, or empty string (not null) if we are the root.

Specified by:

getParentUniqueName in interface Member

getDimension

public Dimension getDimension()

Description copied from interface: OlapElement

Returns the dimension of a this expression, or null if no dimension is defined. Applicable only to set expressions.

Example 1:

 [Sales].children
 

has dimension [Sales].

Example 2:

 order(except([Promotion Media].[Media Type].members,
              {[Promotion Media].[Media Type].[No Media]}),
       [Measures].[Unit Sales], DESC)
 

has dimension [Promotion Media].

Example 3:

 CrossJoin([Product].[Product Department].members,
           [Gender].members)
 

has no dimension (well, actually it is [Product] x [Gender], but we can't represent that, so we return null);

Specified by:

getDimension in interface OlapElement

getHierarchy

public Hierarchy getHierarchy()

Specified by:

getHierarchy in interface Member

Specified by:

getHierarchy in interface OlapElement

getLevel

public Level getLevel()

Specified by:

getLevel in interface Member

getMemberType

public Member.MemberType getMemberType()

Description copied from interface: Member

Returns the type of member.

Specified by:

getMemberType in interface Member

getDescription

public String getDescription()

Specified by:

getDescription in interface OlapElement

isMeasure

public boolean isMeasure()

Description copied from interface: Member

Returns whether this is a member of the measures dimension.

Specified by:

isMeasure in interface Member

isAll

public boolean isAll()

Description copied from interface: Member

Returns whether this is the 'all' member.

Specified by:

isAll in interface Member

isNull

public boolean isNull()

Description copied from interface: Member

Returns whether this is the 'null member'.

Specified by:

isNull in interface Member

isCalculated

public boolean isCalculated()

Description copied from interface: Member

Returns whether this member is computed using either a with member clause in an mdx query or a calculated member defined in cube.

Specified by:

isCalculated in interface Member

lookupChild

public OlapElement lookupChild(SchemaReader schemaReader,
                               Id.Segment childName)

Description copied from interface: OlapElement

Looks up a child element, returning null if it does not exist.

Specified by:

lookupChild in interface OlapElement

lookupChild

public OlapElement lookupChild(SchemaReader schemaReader,
                               Id.Segment childName,
                               MatchType matchType)

Specified by:

lookupChild in interface OlapElement

getParentMember

public Member getParentMember()

Description copied from interface: Member

Returns this member's parent, or null (not the 'null member', as returned by Hierarchy.getNullMember()) if it has no parent.

In an access-control context, a member may have no visible parents, so use SchemaReader.getMemberParent(mondrian.olap.Member).

Specified by:

getParentMember in interface Member

isChildOrEqualTo

public boolean isChildOrEqualTo(Member member)

Description copied from interface: Member

Returns whether member is equal to, a child, or a descendent of this Member.

Specified by:

isChildOrEqualTo in interface Member

isChildOrEqualTo

public boolean isChildOrEqualTo(String uniqueName)

Returns whether this Member's unique name is equal to, a child of, or a descendent of a member whose unique name is uniqueName.

computeCalculated

protected boolean computeCalculated(Member.MemberType memberType)

Computes the value to be returned by isCalculated(), so it can be cached in a variable.

Parameters:

memberType - Member type

Returns:

Whether this member is calculated

getSolveOrder

public int getSolveOrder()

Specified by:

getSolveOrder in interface Member

getExpression

public Exp getExpression()

Returns the expression by which this member is calculated. The expression is not null if and only if the member is not calculated.

Specified by:

getExpression in interface Member

Post-condition:

(return != null) == (isCalculated())

getAncestorMembers

public Member[] getAncestorMembers()

Description copied from interface: Member

Returns array of all members, which are ancestor to this.

Specified by:

getAncestorMembers in interface Member

getOrdinal

public int getOrdinal()

Returns the ordinal of this member within its hierarchy. The default implementation returns -1.

Specified by:

getOrdinal in interface Member

getOrderKey

public Comparable getOrderKey()

Returns the order key of this member among its siblings. The default implementation returns null.

Specified by:

getOrderKey in interface Member

isHidden

public boolean isHidden()

Description copied from interface: Member

Returns whether this member is 'hidden', as per the rules which define a ragged hierarchy.

Specified by:

isHidden in interface Member

getDataMember

public Member getDataMember()

Description copied from interface: Member

Returns the system-generated data member that is associated with a nonleaf member of a dimension.

Returns this member if this member is a leaf member, or if the nonleaf member does not have an associated data member.

Specified by:

getDataMember in interface Member

getPropertyFormattedValue

public String getPropertyFormattedValue(String propertyName)

Description copied from interface: Member

Returns the formatted value of the property named propertyName.

Specified by:

getPropertyFormattedValue in interface Member