oracle.dss.rules.discriminator
Class ValueDiscriminator

java.lang.Object
  oracle.dss.rules.discriminator.ValueDiscriminator

All Implemented Interfaces:

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

Direct Known Subclasses:

DateValueDiscriminator, NumberValueDiscriminator, StringValueDiscriminator

public abstract class ValueDiscriminator
extends java.lang.Object
implements DiscriminatorXML

Abstract Discriminator for a rule that applies based on a comparison of two values. Concrete subclasses of this class specify the kind of value and how the value from the DataView must relate to this value for the DiscriminatorRule to apply. For example, a NumberValueDiscriminator can specify that a DiscriminatorRule should apply to data values greater than 500,000.

This class defines constants for the following relational operators: =, <, <=, >, >=, >, and !=. This class is abstract because it does not define the applies method from the Discriminator interface. Discriminators that extend this class must implement the method.

See Also:

Serialized Form

Field Summary

protected static java.lang.String	a_relOperator
protected static java.lang.String	eq
static int	EQ Equals (=).
protected static java.lang.String	ge
static int	GE Greater than or equal to (>=).
protected static java.lang.String	gt
static int	GT Greater than (>).
protected static java.lang.String	le
static int	LE Less than or equal to (<=).
protected static java.lang.String	lt
static int	LT Less than (<).
protected int	m_relOperator
protected static java.lang.String	ne
static int	NE Not equal (!=).
protected static java.lang.String	s_relOperator

Constructor Summary

ValueDiscriminator()
Constructor that does not take an operator.

ValueDiscriminator(int relOp)
Constructor that initializes the relational operator.

Method Summary

abstract java.lang.Object	clone() Clones this ValueDiscriminator.
protected int	convertRelOperatorToInt(java.lang.String rel)
protected java.lang.String	convertRelOperatorToString(int rel)
int	getRelOperator() Retrieves the relational operator for this ValueDiscriminator.
void	setRelOperator(int relOp) Specifies the relational operator for this.

Methods inherited from class java.lang.Object

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

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

getXML, setXML

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

applies

Field Detail

m_relOperator

protected int m_relOperator

EQ

public static final int EQ

Equals (=). The left operand (from the RuleContext) must equal the right operand (from this ValueDiscriminator).

See Also:

Constant Field Values

LT

public static final int LT

Less than (<). The left operand (from the RuleContext) must be less than the right operand (from this ValueDiscriminator). For dates, the left operand must be earlier than the right operand.

See Also:

Constant Field Values

LE

public static final int LE

Less than or equal to (<=). The left operand (from the RuleContext) must be less than or equal to the right operand (from this ValueDiscriminator). For dates, the left operand must be earlier than or equal to the right operand.

See Also:

Constant Field Values

GT

public static final int GT

Greater than (>). The left operand (from the RuleContext) must be greater than the right operand (from this ValueDiscriminator). For dates, the left operand must be later than the right operand.

See Also:

Constant Field Values

GE

public static final int GE

Greater than or equal to (>=). The left operand (from the RuleContext) must be greater than or equal to the right operand (from this ValueDiscriminator). For dates, the left operand must be later than or equal to the right operand.

See Also:

Constant Field Values

NE

public static final int NE

Not equal (!=). The left operand (from the RuleContext) must not equal the right operand (from this ValueDiscriminator).

See Also:

Constant Field Values

a_relOperator

protected static final java.lang.String a_relOperator

See Also:

Constant Field Values

eq

protected static final java.lang.String eq

See Also:

Constant Field Values

le

protected static final java.lang.String le

See Also:

Constant Field Values

lt

protected static final java.lang.String lt

See Also:

Constant Field Values

ge

protected static final java.lang.String ge

See Also:

Constant Field Values

gt

protected static final java.lang.String gt

See Also:

Constant Field Values

ne

protected static final java.lang.String ne

See Also:

Constant Field Values

s_relOperator

protected static final java.lang.String s_relOperator

See Also:

Constant Field Values

Constructor Detail

ValueDiscriminator

public ValueDiscriminator()

Constructor that does not take an operator. If you use this constructor, call the setRelOperator method to specify the relational operator for this ValueDiscriminator.

ValueDiscriminator

public ValueDiscriminator(int relOp)

Constructor that initializes the relational operator.

Parameters:

relOp - A constant that represents the relational operator to use in this ValueDiscriminator.

Method Detail

clone

public abstract java.lang.Object clone()

Clones this ValueDiscriminator.

Specified by:

clone in interface Discriminator

Overrides:

clone in class java.lang.Object

Returns:

The clone of this ValueDiscriminator

getRelOperator

public int getRelOperator()

Retrieves the relational operator for this ValueDiscriminator.

Returns:

A constant that represents the relational operator that is in effect for this ValueDiscriminator. Valid constants are listed in the See Also section.

See Also:

EQ, LT, LE, GT, GE, NE

setRelOperator

public void setRelOperator(int relOp)

Specifies the relational operator for this. ValueDiscriminator.

Parameters:

relOp - A constant that represents the relational operator for this ValueDiscriminator. Valid constants are defined in the See Also section.

See Also:

EQ, LT, LE, GT, GE, NE

convertRelOperatorToInt

protected int convertRelOperatorToInt(java.lang.String rel)

convertRelOperatorToString

protected java.lang.String convertRelOperatorToString(int rel)