com.webobjects.directtoweb
Class D2WFastModel

java.lang.Object
  com.webobjects.directtoweb.D2WModel
      com.webobjects.directtoweb.D2WFastModel

All Implemented Interfaces:

EOKeyValueArchiving

public class D2WFastModel

extends D2WModel

The D2WFastModel class is a D2WModel that is specialized with support for significant keys. Precomputing the significant keys of rules expedites the determination of the rules that can fire in a given context.

The current implementation caches the keys in an array of fixed size. Intially, the maximum number of significant keys is 32.

The implementation is subject to change in future releases.

Nested Class Summary

Nested classes inherited from class com.webobjects.eocontrol.EOKeyValueArchiving

EOKeyValueArchiving.Awaking, EOKeyValueArchiving.FinishInitialization, EOKeyValueArchiving.Support

Field Summary

Fields inherited from class com.webobjects.directtoweb.D2WModel

ActionsKey, AllMarker, AllowCollapsingKey, AlternateRowColorKey, AttributeKey, AttributeTypeKey, BackgroundColorForPageKey, BackgroundColorForTableKey, BoldKey, ColorKey, ComponentAvailableKey, ComponentNameKey, ComponentsToShowAtEndKey, CustomTypeKey, DisplayNameForPropertyKey, DisplayPropertyKeysKey, DummyTrueKey, DynamicPageKey, EntityKey, FormatterKey, FrameKey, FramesActiveKey, IsGeneratingKey, ItalicKey, KeyPathTypeKey, KeyWhenRelationshipKey, LengthKey, LookKey, NoneMarker, One, PageAvailableKey, PageNameKey, PropertyIsKeyPathKey, PropertyKey, PropertyKeyKey, PropertyKeyPortionInModelKey, PropertyTypeKey, ReadOnlyEntityNamesKey, RelationshipKey, RelationshipTypeKey, RequiresEntityKey, SessionKey, ShowBannerKey, StartupEntityNameKey, StartupTaskKey, TargetKey, TaskKey, VisibleEntityNamesKey, WebAssistantPageNameKey, Zero

Constructor Summary

protected

D2WFastModel(NSArray rules) Creates an instance of D2WFastModel with the specified rules.

Method Summary

static D2WFastModel	defaultFastModel() Gets the default fast model.
protected Vector	fireAllRulesForKeyPathInContext(String keyPath, D2WContext context) Fires all candidate rules for the specified key path that can fire in the specified context; aggregates the results of all firings.
protected Object	fireRuleForKeyPathInContext(String keyPath, D2WContext context) Fires the first candidate rule for the specified key path that can fire in the specified context.
protected Object	fireSystemRuleForKeyPathInContext(String keyPath, D2WContext context) Fires the first candidate rule for the specified key path that can fire in the specified context but is not authored by the Web Assistant.
protected void	invalidateCaches() Clears the local caches of fast left-hand side keys.
static void	newSignificantKey(String newKey) Adds the specified key to the significant keys.
static short	significantKeyCount() Gets the current number of significant keys.
static String[]	significantKeys() Gets the significant keys.

Methods inherited from class com.webobjects.directtoweb.D2WModel

addRule, addRules, addRuleToItsBucket, addRuleTrace, candidates, canSaveUserModel, checkPossibilityToSaveUserModel, checkRules, clientConfiguration, clientConfigurationFilesInBundles, clientConfigurationFilesPathURLsInBundles, componentDefinitions, createWebAssistantRulesWithSettings, dataTypesInvolved, defaultModel, dirty, dynamicPages, editors, encodeWebAssistantRulesWithKeyValueArchiver, encodeWithKeyValueArchiver, inferrableKeys, initializeClientConfiguration, isPageStatic, loadRules, mergeFile, mergePathURL, modelFilesInBundles, modelFilesPathURLsInBundles, nameFromFrameworkBundle, newSettings, pageRuleKeysForPage, pageRuleKeysFromClientConfiguration, propertyRuleKeysForComponents, propertyRuleKeysFromClientConfiguration, removeAllWebAssistantRules, removeDynamicPage, removeRule, removeWebAssistantRulesWithSameContextAsSettings, revertWebAssistantRules, rules, saveWebAssistantRulesIntoUsedModelFile, setDefaultModel, setDirty, setRules, sortRules, tasks, taskVector, toFile, toString, typeForRuleKey, updateUserSettingsForNewPageAvailableRule, userClientConfigurationFile, userClientConfigurationFilePathURL, userModelFile, userModelFilePathURL, webAssistantRulesForSave

Methods inherited from class java.lang.Object

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

Constructor Detail

D2WFastModel

protected D2WFastModel(NSArray rules)

Creates an instance of D2WFastModel with the specified rules.

Parameters:

rules - instance of NSArray

See Also:

D2WModel.D2WModel(NSArray)

Method Detail

defaultFastModel

public static D2WFastModel defaultFastModel()

Gets the default fast model.

Returns:

instance of D2WFastModel

See Also:

D2WModel.defaultModel()

fireAllRulesForKeyPathInContext

protected Vector fireAllRulesForKeyPathInContext(String keyPath,
                                                 D2WContext context)

Description copied from class: D2WModel

Fires all candidate rules for the specified key path that can fire in the specified context; aggregates the results of all firings.

Overrides:

fireAllRulesForKeyPathInContext in class D2WModel

Parameters:

keyPath - the key path

context - instance of D2WContext

Returns:

instance of java.util.Vector

See Also:

D2WModel.candidates(String, D2WContext), D2WModel.fireRuleForKeyPathInContext(String, D2WContext), Rule.canFireInContext(D2WContext), Rule.fire(D2WContext)

fireRuleForKeyPathInContext

protected Object fireRuleForKeyPathInContext(String keyPath,
                                             D2WContext context)

Description copied from class: D2WModel

Fires the first candidate rule for the specified key path that can fire in the specified context.

Overrides:

fireRuleForKeyPathInContext in class D2WModel

Parameters:

keyPath - the key path

context - instance of D2WContext

Returns:

the result of firing if a rule fires; null otherwise

See Also:

D2WModel.fireSystemRuleForKeyPathInContext(String, D2WContext), D2WModel.fireAllRulesForKeyPathInContext(String, D2WContext)

fireSystemRuleForKeyPathInContext

protected Object fireSystemRuleForKeyPathInContext(String keyPath,
                                                   D2WContext context)

Description copied from class: D2WModel

Fires the first candidate rule for the specified key path that can fire in the specified context but is not authored by the Web Assistant.

Overrides:

fireSystemRuleForKeyPathInContext in class D2WModel

Parameters:

keyPath - the key path

context - instance of D2WContext

Returns:

the result of firing if a rule fires; null otherwise

See Also:

D2WModel.fireRuleForKeyPathInContext(String, D2WContext)

invalidateCaches

protected void invalidateCaches()

Clears the local caches of fast left-hand side keys.

Overrides:

invalidateCaches in class D2WModel

See Also:

D2WModel.invalidateCaches()

newSignificantKey

public static void newSignificantKey(String newKey)

Adds the specified key to the significant keys. Increments the significant key count.

Parameters:

newKey - instance of String

See Also:

significantKeyCount()

significantKeyCount

public static short significantKeyCount()

Gets the current number of significant keys.

Returns:

short that represents the significant key count

significantKeys

public static String[] significantKeys()

Gets the significant keys.

Returns:

array of String