oracle.dss.rules
Class RuleContext

java.lang.Object
  |
  +--java.util.Dictionary
        |
        +--java.util.Hashtable
              |
              +--oracle.dss.rules.RuleContext

All Implemented Interfaces:

java.lang.Cloneable, java.util.Map, java.io.Serializable

public class RuleContext

extends java.util.Hashtable

implements java.io.Serializable

Information about an item in a DataView. RuleContext objects are used by Rules to determine whether the Rule applies to the item. Dynamic rules might also use the information in a RuleContext to determine values to set in its own Mergeable object.

RuleContext objects store data objects that contain information about the DataView item. The fields in this class are the keys into the ruleContext.

To retrieve, for example, a QDR data object for this context, you would call the the get method of the superclass, passing RuleContext.QDR as the key.

Do not pass null parameters to the put or get methods of the Hashtable. If either parameter is null, the method throws a NullPointerException. It is the responsibility of the user of the RuleContext to ensure that this does not happen.

See Also:

Serialized Form

Inner classes inherited from class java.util.Map

java.util.Map.Entry

Field Summary

static java.lang.String	COMPONENT_TYPE Key for an Integer object that is used by the ComponentTypeDiscriminator.
static java.lang.String	DATE_VALUE Key for a Date value.
static java.lang.String	DIMENSIONQDR Key for a DIMENSIONQDR.
static java.lang.String	ISPERCENT Key for a Boolean value.
static java.lang.String	NUMBER_VALUE Key for a Number.
static java.lang.String	POSITION Key for a ComponentInfo.
static java.lang.String	QDR Key for a QDR.
static java.lang.String	STRING_VALUE Key for a String value.

Constructor Summary

RuleContext()
Constructor.

Method Summary

java.lang.Object	clone() Clones this RuleContext.
boolean	isStopAtFirstMatch() Indicates whether bundles of rules stop being run after a RuleBundle is run that has a Rule that applies and has been fired.
void	setStopAtFirstMatch(boolean v) Specifies whether bundles of rules stop being run after a RuleBundle is run that has a Rule that applies and has been fired.

Methods inherited from class java.util.Hashtable

clear, contains, containsKey, containsValue, elements, entrySet, equals, get, hashCode, isEmpty, keys, keySet, put, putAll, remove, size, toString, values

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Field Detail

QDR

public static final java.lang.String QDR

Key for a QDR. The QDR will most likely be used by a QDRDiscriminator.

DIMENSIONQDR

public static final java.lang.String DIMENSIONQDR

Key for a DIMENSIONQDR. The DIMENSIONQDR will most likely be used by a QDRDiscriminator.

POSITION

public static final java.lang.String POSITION

Key for a ComponentInfo. The ComponentInfo will most likely be used by a PositionDiscriminator.

NUMBER_VALUE

public static final java.lang.String NUMBER_VALUE

Key for a Number. The Number will most likely be used by a NumberValueDiscriminator.

DATE_VALUE

public static final java.lang.String DATE_VALUE

Key for a Date value.

STRING_VALUE

public static final java.lang.String STRING_VALUE

Key for a String value.

ISPERCENT

public static final java.lang.String ISPERCENT

Key for a Boolean value. If the Boolean is true, the data value should be formatted as a percent value.

COMPONENT_TYPE

public static final java.lang.String COMPONENT_TYPE

Key for an Integer object that is used by the ComponentTypeDiscriminator. The Integer should identify the type of component.

Constructor Detail

RuleContext

public RuleContext()

Constructor.

Method Detail

clone

public java.lang.Object clone()

Clones this RuleContext. This method creates a shallow copy.

Overrides:

clone in class java.util.Hashtable

Returns:

The clone of this RuleContext.

setStopAtFirstMatch

public void setStopAtFirstMatch(boolean v)

Specifies whether bundles of rules stop being run after a RuleBundle is run that has a Rule that applies and has been fired. Stopping at the first RuleBundle prevents rules that are in later rule bundles in the vector from changing the effect of the RuleBundle. Stopping at the first applicable rule also enhances performance.

Parameters:

v - true to stop running rule bundles after the first bundle that has an applicable rule, false to run all the rule bundles.

isStopAtFirstMatch

public boolean isStopAtFirstMatch()

Indicates whether bundles of rules stop being run after a RuleBundle is run that has a Rule that applies and has been fired. Stopping at the first RuleBundle prevents rules that are in later rule bundles in the vector from changing the effect of the RuleBundle. Stopping at the first applicable rule also enhances performance.

Returns:

true if rule bundles are not run after the first bundle that has an applicable rule, false if the all rule bundles are run.