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

com.sas.iquery.metadata.expr
Class CompoundConditionalExpression

com.sas.iquery.metadata.expr.CompoundConditionalExpression

All Implemented Interfaces:

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

public class CompoundConditionalExpression
implements FilterCascadeContainerUpdater, CascadableFilter

Models a conditional expression that is made up of one or two sub-conditional expressions adjoined by an AND or OR relation, and optionally negated.

The abstract form of the expression is

 
   [NOT] ( {Conditional or String Expression} {AND|OR} {Conditional or String Expression} )
 

The left and right expressions, when set, should have an expression type of ExpressionTypes.EXP_TYPE_BOOLEAN.

Field Summary

static java.lang.String	EVENT_LEFT_EXPRESSION_CHANGED Indication that left portion of condition expression has changed.
static java.lang.String	EVENT_RELATION_TYPE_CHANGED Indication that relational type has changed.
static java.lang.String	EVENT_RIGHT_EXPRESSION_CHANGED Indication that right portion of condition expression has changed.

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

EVENT_NEGATION_CHANGED

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

Constructor Summary

CompoundConditionalExpression()

Method Summary

java.util.List	getCascades(boolean recursive) Returns the list of FilterCascadeInterfaces set on the filter.
ExpressionInterface	getExpression() Returns the ExpressionInterface for this CascadableFilter.
ExpressionInterface	getLeftExpression() Returns left portion of condition expression.
ConditionalRelationType	getRelationType() Returns a relation type from the values in class ConditionalRelationType.
ExpressionInterface	getRightExpression() Returns right portion of condition expression.
void	setCascades(java.util.List filterCascades) Set the list of FilterCascadeInterfaces that are associated to this expression.
void	setLeftExpression(ExpressionInterface condExpr) Sets the left expression
void	setRelationType(ConditionalRelationType relationType) Sets the relation type with a value from class ConditionalRelationType
void	setRightExpression(ExpressionInterface condExpr) Sets the right expression

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

EVENT_RELATION_TYPE_CHANGED

public static final java.lang.String EVENT_RELATION_TYPE_CHANGED

Indication that relational type has changed.

See Also:

Constant Field Values

EVENT_LEFT_EXPRESSION_CHANGED

public static final java.lang.String EVENT_LEFT_EXPRESSION_CHANGED

Indication that left portion of condition expression has changed.

See Also:

Constant Field Values

EVENT_RIGHT_EXPRESSION_CHANGED

public static final java.lang.String EVENT_RIGHT_EXPRESSION_CHANGED

Indication that right portion of condition expression has changed.

See Also:

Constant Field Values

Constructor Detail

CompoundConditionalExpression

public CompoundConditionalExpression()

Method Detail

getRelationType

public ConditionalRelationType getRelationType()

Returns a relation type from the values in class ConditionalRelationType.

Returns:

a relation type from the values in class ConditionalRelationType

setRelationType

public void setRelationType(ConditionalRelationType relationType)

Sets the relation type with a value from class ConditionalRelationType

Parameters:

relationType -

See Also:

ConditionalRelationType

setLeftExpression

public void setLeftExpression(ExpressionInterface condExpr)

Sets the left expression

Parameters:

condExpr - the Expression to use for the left side of the conditional

getLeftExpression

public ExpressionInterface getLeftExpression()

Returns left portion of condition expression.

Returns:

the left expression.

setRightExpression

public void setRightExpression(ExpressionInterface condExpr)

Sets the right expression

Parameters:

condExpr - the Expression to use for the right side of the conditional

getRightExpression

public ExpressionInterface getRightExpression()

Returns right portion of condition expression.

Returns:

the right expression.

setCascades

public void setCascades(java.util.List filterCascades)

Set the list of FilterCascadeInterfaces that are associated to this expression. This call will replace the current list of cascades.

Specified by:

setCascades in interface FilterCascadeContainerUpdater

Parameters:

filterCascades - list of FilterCascadeInterfaces

getCascades

public java.util.List getCascades(boolean recursive)

Description copied from interface: FilterCascadeContainer

Returns the list of FilterCascadeInterfaces set on the filter.

Specified by:

getCascades in interface FilterCascadeContainer

Parameters:

recursive - determines if the list of filter cascades returned includes all the cascades from filters that make up the current filter

Returns:

filterCascades list of FilterCascadeInterfaces

See Also:

FilterCascadeContainer.getCascades(boolean)

getExpression

public ExpressionInterface getExpression()

Description copied from interface: CascadableFilter

Returns the ExpressionInterface for this CascadableFilter.

Specified by:

getExpression in interface CascadableFilter

Returns:

The underlining ExpressionInterface

See Also:

CascadableFilter.getExpression()

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