mondrian.rolap.agg
Class AbstractColumnPredicate

java.lang.Object
  mondrian.rolap.agg.AbstractColumnPredicate

All Implemented Interfaces:

StarColumnPredicate, StarPredicate

Direct Known Subclasses:

ListColumnPredicate, LiteralStarPredicate, MinusStarPredicate, RangeColumnPredicate, ValueColumnPredicate

public abstract class AbstractColumnPredicate
extends Object
implements StarColumnPredicate

A AbstractColumnPredicate is an abstract implementation for StarColumnPredicate.

Version:

$Id: //open/mondrian-release/3.0/src/main/mondrian/rolap/agg/AbstractColumnPredicate.java#3 $

Nested Class Summary

static class

AbstractColumnPredicate.Factory Factory for StarPredicates and StarColumnPredicates.

Nested classes/interfaces inherited from interface mondrian.rolap.StarColumnPredicate

StarColumnPredicate.Overlap

Field Summary

protected RolapStar.Column

constrainedColumn

Fields inherited from interface mondrian.rolap.StarPredicate

WILDCARD

Constructor Summary

protected

AbstractColumnPredicate(RolapStar.Column constrainedColumn) Creates an AbstractColumnPredicate.

Method Summary

StarPredicate	and(StarPredicate predicate) Returns this intersection of this Predicate with another.
protected static List<StarColumnPredicate>	cloneListWithColumn(RolapStar.Column column, List<StarColumnPredicate> list)
boolean	equalConstraint(StarPredicate that) Returns whether this Predicate has the same constraining effect as the other constraint.
boolean	evaluate(List<Object> valueList) Evaluates a constraint against a list of values.
RolapStar.Column	getConstrainedColumn() Returns the column constrained by this predicate.
BitKey	getConstrainedColumnBitKey() Returns a bitmap of constrained columns to speed up comparison
List<RolapStar.Column>	getConstrainedColumnList() Returns a list of constrained columns.
StarPredicate	or(StarPredicate predicate) Returns this union of this Predicate with another.
StarColumnPredicate	orColumn(StarColumnPredicate predicate) Returns this union of this Predicate with another.
void	toSql(SqlQuery sqlQuery, StringBuilder buf)
String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface mondrian.rolap.StarColumnPredicate

cloneWithColumn, evaluate, intersect, mightIntersect, minus, values

Methods inherited from interface mondrian.rolap.StarPredicate

describe

Field Detail

constrainedColumn

protected final RolapStar.Column constrainedColumn

Constructor Detail

AbstractColumnPredicate

protected AbstractColumnPredicate(RolapStar.Column constrainedColumn)

Creates an AbstractColumnPredicate.

Parameters:

constrainedColumn - Constrained column

Method Detail

toString

public String toString()

Overrides:

toString in class Object

getConstrainedColumn

public RolapStar.Column getConstrainedColumn()

Description copied from interface: StarColumnPredicate

Returns the column constrained by this predicate.

Specified by:

getConstrainedColumn in interface StarColumnPredicate

Returns:

Column constrained by this predicate.

getConstrainedColumnList

public List<RolapStar.Column> getConstrainedColumnList()

Description copied from interface: StarPredicate

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.

evaluate

public boolean evaluate(List<Object> valueList)

Description copied from interface: StarPredicate

Evaluates a constraint against a list of values.

If one of the values is StarPredicate.WILDCARD, returns true if constraint is true for all possible values of that column.

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

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

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

orColumn

public StarColumnPredicate orColumn(StarColumnPredicate predicate)

Description copied from interface: StarColumnPredicate

Returns this union of this Predicate with another.

Unlike StarPredicate.or(mondrian.rolap.StarPredicate), the other predicate must be on this column, and the result is a column predicate.

Specified by:

orColumn in interface StarColumnPredicate

Parameters:

predicate - Another predicate on this column

Returns:

Union predicate on this column

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

toSql

public void toSql(SqlQuery sqlQuery,
                  StringBuilder buf)

Specified by:

toSql in interface StarPredicate

cloneListWithColumn

protected static List<StarColumnPredicate> cloneListWithColumn(RolapStar.Column column,
                                                               List<StarColumnPredicate> list)