oracle.dss.rules.discriminator
Class DateValueDiscriminator

java.lang.Object
  |
  +--oracle.dss.rules.discriminator.ValueDiscriminator
        |
        +--oracle.dss.rules.discriminator.DateValueDiscriminator

All Implemented Interfaces:

java.lang.Cloneable, Discriminator, DiscriminatorXML, java.io.Serializable

public class DateValueDiscriminator

extends ValueDiscriminator

Discriminator for a rule that applies based on a comparison of two date values. For example, you could use this Discriminator to specify that a DiscriminatorRule should apply to date values after 11/20/98. This Discriminator compares an internal Date value to a value that is in the RuleContext that describes the item to be displayed. In the comparison, the left operand comes from the RuleContext, and the right operand is the value stored in this Discriminator.

See Also:

Serialized Form

Fields inherited from class oracle.dss.rules.discriminator.ValueDiscriminator

EQ, GE, GT, LE, LT, NE

Constructor Summary

DateValueDiscriminator()
Constructor that does not specify a date or a relational operator.

DateValueDiscriminator(java.sql.Date date, int relationalOperator)
Constructor that specifies the date and relational operator.

Method Summary

boolean	applies(RuleContext context) Specifies whether the value from the DataView item meets the conditions specified in this Discriminator.
java.lang.Object	clone() Clones this DateValueDiscriminator.
boolean	equals(java.lang.Object o) Indicates whether the specified object is equivalent to this DateValueDiscriminator.
java.sql.Date	getDate() Retrieves the date for this DateValueDiscriminator.
void	setDate(java.sql.Date date) Specifies the date value for this DateValueDiscriminator.

Methods inherited from class oracle.dss.rules.discriminator.ValueDiscriminator

getRelOperator, setRelOperator

Methods inherited from class java.lang.Object

getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface oracle.dss.rules.discriminator.DiscriminatorXML

getXML, setXML

Constructor Detail

DateValueDiscriminator

public DateValueDiscriminator()

Constructor that does not specify a date or a relational operator. If you use this constructor, then call the setDate method to specify a date to compare with. Call setRelOperator to specify the way the dates should compare, remembering that the left operand comes from the RuleContext and the right operand is the date that you set for this Discriminator.

DateValueDiscriminator

public DateValueDiscriminator(java.sql.Date date,
                              int relationalOperator)

Constructor that specifies the date and relational operator.

Parameters:

date - The value for this Discriminator. This date becomes the right operand in the comparison.

relationalOperator - The relationship that the value from the RuleContext should have with date, in order for this Discriminator to apply. Valid constants are listed in the See Also section.

See Also:

ValueDiscriminator.EQ, ValueDiscriminator.GE, ValueDiscriminator.GT, ValueDiscriminator.LE, ValueDiscriminator.LT, ValueDiscriminator.NE

Method Detail

clone

public java.lang.Object clone()

Clones this DateValueDiscriminator.

Overrides:

clone in class ValueDiscriminator

Returns:

The clone of this DateValueDiscriminator.

setDate

public void setDate(java.sql.Date date)

Specifies the date value for this DateValueDiscriminator.

Parameters:

d - The date that the date from the DataView item must compare to in order to apply. The relationship that the two dates must have is specified by the RelOperator property of the superclass.

getDate

public java.sql.Date getDate()

Retrieves the date for this DateValueDiscriminator.

Returns:

The date to which the value from the DataView item will be compared. The relationship that the two dates must have is specified by the RelOperator property of the superclass.

applies

public boolean applies(RuleContext context)

Specifies whether the value from the DataView item meets the conditions specified in this Discriminator. For example, if the date for this DateValueDiscriminator is 11/20/98 and the RelOperator is GT (>), then this method returns true if the value in the specified RuleContext is after 11/20/98.

Parameters:

context - The context of the item to be displayed.

Returns:

true if the Date value from context has the specified relationship with the number in this Discriminator, false if not.

equals

public boolean equals(java.lang.Object o)

Indicates whether the specified object is equivalent to this DateValueDiscriminator. They are equivalent if the dates are equal and if the RelOperator values are equal.

Overrides:

equals in class java.lang.Object

Parameters:

o - The object to compare with this DateValueDiscriminator.

Returns:

true if both objects have the same date and RelOperator false if not or if o is not a DateValueDiscriminator.