mondrian.rolap.agg

Class MemberTuplePredicate

java.lang.Object

mondrian.rolap.agg.MemberTuplePredicate

All Implemented Interfaces:

StarPredicate

public class MemberTuplePredicate
extends Object
implements StarPredicate

Predicate which constrains a column to a particular member, or a range above or below a member, or a range between two members.

Author:

jhyde

Field Summary

Fields inherited from interface mondrian.rolap.StarPredicate

WILDCARD

Constructor Summary

Constructors

Constructor and Description
MemberTuplePredicate(RolapCube baseCube, RolapCubeMember member) Creates a MemberTuplePredicate which evaluates to true for a given member.
MemberTuplePredicate(RolapCube baseCube, RolapMember lower, boolean lowerStrict, RolapMember upper, boolean upperStrict) Creates a MemberTuplePredicate which evaluates to true for a given range of members.

Method Summary

Modifier and Type	Method and Description
StarPredicate	and(StarPredicate predicate) Returns this intersection of this Predicate with another.
void	describe(StringBuilder buf) Appends a description of this predicate to a StringBuilder.
boolean	equalConstraint(StarPredicate that) Returns whether this Predicate has the same constraining effect as the other constraint.
boolean	equals(Object obj)
boolean	evaluate(List<Object> valueList) Evaluates a constraint against a list of values.
BitKey	getConstrainedColumnBitKey() Returns a bitmap of constrained columns to speed up comparison
List<RolapStar.Column>	getConstrainedColumnList() Returns a list of constrained columns.
int	hashCode()
StarPredicate	minus(StarPredicate predicate) Returns the logical inverse of this Predicate.
StarPredicate	or(StarPredicate predicate) Returns this union of this Predicate with another.
void	toSql(SqlQuery sqlQuery, StringBuilder buf)

Methods inherited from class java.lang.Object

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

Constructor Detail

MemberTuplePredicate

public MemberTuplePredicate(RolapCube baseCube,
                            RolapMember lower,
                            boolean lowerStrict,
                            RolapMember upper,
                            boolean upperStrict)

Creates a MemberTuplePredicate which evaluates to true for a given range of members.

The range can be open above or below, but at least one bound is required.

Parameters:

baseCube - base cube for virtual members

lower - Member which forms the lower bound, or null if range is open below

lowerStrict - Whether lower bound of range is strict

upper - Member which forms the upper bound, or null if range is open above

upperStrict - Whether upper bound of range is strict

MemberTuplePredicate

public MemberTuplePredicate(RolapCube baseCube,
                            RolapCubeMember member)

Creates a MemberTuplePredicate which evaluates to true for a given member.

Parameters:

baseCube - base cube for virtual members

member - Member

Method Detail

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

getConstrainedColumnList

public List<RolapStar.Column> getConstrainedColumnList()

Returns a list of constrained columns.

Specified by:

getConstrainedColumnList in interface StarPredicate

Returns:

List of constrained columns

getConstrainedColumnBitKey

public BitKey getConstrainedColumnBitKey()

Description copied from interface: StarPredicate

Returns a bitmap of constrained columns to speed up comparison

Specified by:

getConstrainedColumnBitKey in interface StarPredicate

Returns:

bitmap representing all constraining columns.

equalConstraint

public boolean equalConstraint(StarPredicate that)

Description copied from interface: StarPredicate

Returns whether this Predicate has the same constraining effect as the other constraint. This is weaker than Object.equals(Object): it is possible for two different members to constrain the same column in the same way.

Specified by:

equalConstraint in interface StarPredicate

Parameters:

that - Other predicate

Returns:

whether the other predicate is equivalent

minus

public StarPredicate minus(StarPredicate predicate)

Description copied from interface: StarPredicate

Returns the logical inverse of this Predicate. The result is a Predicate which holds whenever this predicate holds but the other does not.

Specified by:

minus in interface StarPredicate

Parameters:

predicate - Predicate

Returns:

Combined predicate

or

public StarPredicate or(StarPredicate predicate)

Description copied from interface: StarPredicate

Returns this union of this Predicate with another. The result is a Predicate which holds whenever either predicate holds.

Specified by:

or in interface StarPredicate

Parameters:

predicate - Predicate

Returns:

Combined predicate

and

public StarPredicate and(StarPredicate predicate)

Description copied from interface: StarPredicate

Returns this intersection of this Predicate with another. The result is a Predicate which holds whenever both predicates hold.

Specified by:

and in interface StarPredicate

Parameters:

predicate - Predicate

Returns:

Combined predicate

evaluate

public boolean evaluate(List<Object> valueList)

Evaluates a constraint against a list of values.

Specified by:

evaluate in interface StarPredicate

Parameters:

valueList - List of values, one for each constrained column

Returns:

Whether constraint holds for given set of values

describe

public void describe(StringBuilder buf)

Description copied from interface: StarPredicate

Appends a description of this predicate to a StringBuilder. For example:

• =any
• =5
• in (2, 4, 6)

Specified by:

describe in interface StarPredicate

Parameters:

buf - Builder to append to

toSql

public void toSql(SqlQuery sqlQuery,
                  StringBuilder buf)

Specified by:

toSql in interface StarPredicate