*** This class is subject to change. ***

com.sas.iquery.metadata.expr.olap
Class DataBasedFilterExpression

com.sas.iquery.metadata.expr.olap.DataBasedFilterExpression

All Implemented Interfaces:

Base, BusinessModelResourceReferencer, ModelItem, UsabilityInterface, ExpressionInterface, PropertyChangeListenee, java.beans.PropertyChangeListener, java.lang.Cloneable, java.util.EventListener

public class DataBasedFilterExpression

Models the "comparison" simple conditional expression. This is of the format {WhatToFilter} where {LeftExpression} {ComparisonOperator} {RightExpression}.

See the ConditionalExpression class for a description of the organization of of ConditionalExpression classes.

Field Summary

static java.lang.String	EVENT_COMPARISON_OPERATOR_CHANGED Indication that what comparison operator has changed.
static java.lang.String	EVENT_LEFT_EXPRESSION_CHANGED Indication that left portion of expression has changed.
static java.lang.String	EVENT_RIGHT_EXPRESSION_CHANGED Indication that right portion of expression has changed.
static java.lang.String	EVENT_WHAT_TO_FILTER_CHANGED Indication that what to filter has changed.

Fields inherited from class com.sas.iquery.metadata.expr.olap.BaseFilterExpression

EVENT_WHAT_TO_COMPARE_CHANGED

Fields inherited from class com.sas.iquery.metadata.expr.ConditionalExpression

EVENT_NEGATION_CHANGED

Fields inherited from interface com.sas.iquery.metadata.business.Base

EVENT_OBJECT_DEFINITION_CHANGED

Fields inherited from interface com.sas.iquery.metadata.business.ModelItem

EVENT_OBJECT_PROPERTY_CHANGED

Constructor Summary

DataBasedFilterExpression()

Method Summary

java.util.List	getLeftExpression() Gets the left expression for this conditional expression.
java.util.List	getRightExpression() Gets the right expression for this conditional expression.
ExpressionInterface	getWhatToFilter() Gets the value of what is being filtered.
void	setComparisonOperator(ComparisonOperator operator) Sets the comparison used in this expression
void	setLeftExpression(java.util.List values) Sets the left expression portion of the conditional expression.
void	setRightExpression(java.util.List values) Sets the right expression portion of the conditional expression.
void	setWhatToFilter(ExpressionInterface expr) Sets the value of what will be filtered.

Methods inherited from class com.sas.iquery.metadata.expr.olap.BaseFilterExpression

getDisplayedText, getLevels, getWhatToCompare

Methods inherited from class com.sas.iquery.metadata.expr.ConditionalExpression

getExpressionType, isNegated, setIsNegated

Methods inherited from interface com.sas.iquery.metadata.business.BusinessModelResourceReferencer

getResources

Methods inherited from interface com.sas.iquery.metadata.PropertyChangeListenee

addListener, getListeners, removeListener

Methods inherited from interface com.sas.iquery.metadata.business.UsabilityInterface

getReasonsUnusable, isUsableInQuery

Field Detail

*** This field is subject to change. ***

EVENT_WHAT_TO_FILTER_CHANGED

public static final java.lang.String EVENT_WHAT_TO_FILTER_CHANGED

Indication that what to filter has changed.

See Also:

Constant Field Values

*** This field is subject to change. ***

EVENT_COMPARISON_OPERATOR_CHANGED

public static final java.lang.String EVENT_COMPARISON_OPERATOR_CHANGED

Indication that what comparison operator has changed.

See Also:

Constant Field Values

*** This field is subject to change. ***

EVENT_LEFT_EXPRESSION_CHANGED

public static final java.lang.String EVENT_LEFT_EXPRESSION_CHANGED

Indication that left portion of expression has changed.

See Also:

Constant Field Values

*** This field is subject to change. ***

EVENT_RIGHT_EXPRESSION_CHANGED

public static final java.lang.String EVENT_RIGHT_EXPRESSION_CHANGED

Indication that right portion of expression has changed.

See Also:

Constant Field Values

Constructor Detail

DataBasedFilterExpression

public DataBasedFilterExpression()

Method Detail

*** This method is subject to change. ***

setWhatToFilter

public void setWhatToFilter(ExpressionInterface expr)

Sets the value of what will be filtered.

Parameters:

expr - is the value in question and must be a DataItem

*** This method is subject to change. ***

getWhatToFilter

public ExpressionInterface getWhatToFilter()

Gets the value of what is being filtered.

Returns:

expression of filter.

*** This method is subject to change. ***

setComparisonOperator

public void setComparisonOperator(ComparisonOperator operator)

Sets the comparison used in this expression

Parameters:

operator -

*** This method is subject to change. ***

setLeftExpression

public void setLeftExpression(java.util.List values)

Sets the left expression portion of the conditional expression. This is commonly a List of StringExpression representing Member Names or DataItem (with structure of Measure).

Parameters:

values - left side of conditional expression

*** This method is subject to change. ***

getLeftExpression

public java.util.List getLeftExpression()

Gets the left expression for this conditional expression. This is commonly a List of StringExpressions representing Member Names or DataItem (with structure of Measure).

Returns:

the left side expression.

*** This method is subject to change. ***

setRightExpression

public void setRightExpression(java.util.List values)

Sets the right expression portion of the conditional expression. This is commonly a single ConstantExpression representing a constant value to be used in the expression, but could also be a more general expression or a list of StringExpressions representing Member Names.

Parameters:

values - right side of conditional expression

*** This method is subject to change. ***

getRightExpression

public java.util.List getRightExpression()

Gets the right expression for this conditional expression. This is commonly a single ConstantExpression representing a constant value to be used in the expression, but could also be a more general expression or a list of StringExpressions representing Member Names.

Returns:

the right side expression.

*** This class is subject to change. ***