*** This interface is subject to change. ***

com.sas.iquery.metadata.expr
Interface ExpressionInterface

All Superinterfaces:

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

All Known Subinterfaces:

DataItem, DataItemContainerExpression, DataItemReference, Prompt

All Known Implementing Classes:

com.sas.iquery.metadata.impl.AbstractExpression, AbstractRelativeTimeValueExpression, AbstractTimeValueExpression, BaseFilterExpression, BusinessGroupMemberFilterExpression, CompoundConditionalExpression, ConditionalExpression, ConstantExpression, DataBasedFilterExpression, DataBasedFilterExpression_Between, DateValueExpression, FractionOfTotalExpression, FunctionCall, MemberFilterExpression, MultipleConditionalExpression, RelationalConditionalExpression, RelativeDateValueExpression, RelativeTimestampValueExpression, ResourceAwareStringExpression, SimpleConditionalExpression_Between, SimpleConditionalExpression_Comparison, SimpleConditionalExpression_Contains, SimpleConditionalExpression_In, SimpleConditionalExpression_Like, SimpleConditionalExpression_TestForNull, StringExpression, TimeExpressionMeasure, TimeFilterExpression, TimeFilterFirstLastPeriodsExpression, TimeFilterNParallelPeriodsExpression, TimeFilterNPeriodsExpression, TimeRangeFilterExpression, TimestampValueExpression, TimeValueExpression

public interface ExpressionInterface
extends ModelItem, BusinessModelResourceReferencer, java.lang.Cloneable

Specifies an interface. All expressions that are used within the SAS Query Services models extend or implement this interface.

Field Summary

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

EVENT_OBJECT_PROPERTY_CHANGED

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

EVENT_OBJECT_DEFINITION_CHANGED

Method Summary

int	getExpressionType() Return the integer form of the expression type.

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

Method Detail

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

getExpressionType

int getExpressionType()

Return the integer form of the expression type.

Returns:

an expression type from class ExpressionTypes

*** This interface is subject to change. ***