PopulationManager (EclipseLink 2.6.1, API Reference)

java.lang.Object
- org.eclipse.persistence.tools.schemaframework.PopulationManager

```
public class PopulationManager
extends java.lang.Object
```
Purpose: This class is used to populate example data into the database, it allows for circular references to be resolved.
Responsibilities:
- Allow objects to be registered.
- Allow objects to be looked up.
- Store a globally accessible default instance.

Field Summary

Fields
Modifier and Type	Field and Description
`protected static PopulationManager`	`defaultManager` Store the default instance.
`protected java.util.Hashtable`	`registeredObjects` Store the objects registered.

Constructor Summary

Constructors
Constructor and Description

PopulationManager()

Constructors
Constructor and Description
`PopulationManager()`

Method Summary

Methods
Modifier and Type	Method and Description
`void`	`addAllObjectsForAbstractClass(java.lang.Class objectsClass, org.eclipse.persistence.internal.sessions.AbstractSession session, java.util.Vector allObjects)` Add all of the objects of the class and all of its subclasses.
`void`	`addAllObjectsForAbstractClass(java.lang.Class objectsClass, Session session, java.util.Vector allObjects)` Add all of the objects of the class and all of its subclasses.
`void`	`addAllObjectsForClass(java.lang.Class objectsClass, java.util.List allObjects)` Add all of the objects of the class.
`boolean`	`containsObject(java.lang.Class objectsClass, java.lang.String objectsName)` Check if the object is registered given its name.
`boolean`	`containsObject(java.lang.Object objectToCheck, java.lang.String objectsName)` Check if the object is registered given its name.
`java.util.Vector`	`getAllClasses()` Return all of the objects registered.
`java.util.Vector`	`getAllObjects()` Return all of the objects registered.
`java.util.Vector`	`getAllObjectsForAbstractClass(java.lang.Class objectsClass)` Return all of the objects of the class and all of its subclasses.
`java.util.Vector`	`getAllObjectsForAbstractClass(java.lang.Class objectsClass, org.eclipse.persistence.internal.sessions.AbstractSession session)` Return all of the objects of the class and all of its subclasses.
`java.util.Vector`	`getAllObjectsForClass(java.lang.Class objectsClass)` Return all of the objects of the class.
`static PopulationManager`	`getDefaultManager()` Lazy initialize the default instance.
`java.lang.Object`	`getObject(java.lang.Class objectsClass, java.lang.String objectsName)` Return the object registered given its name.
`java.util.Hashtable`	`getRegisteredObjects()` Return the registered objects.
`java.lang.Object`	`registerObject(java.lang.Class javaClass, java.lang.Object objectToRegister, java.lang.String objectsName)` Register the object given its name.
`java.lang.Object`	`registerObject(java.lang.Object objectToRegister, java.lang.String objectsName)` Register the object given its name.
`void`	`removeObject(java.lang.Class classToRemove, java.lang.String objectsName)` Remove the object given its class and name.
`java.lang.Object`	`removeObject(java.lang.Object objectToRemove, java.lang.String objectsName)` Remove the object given its name.
`static void`	`resetDefaultManager()` Reset the default instance.
`static void`	`setDefaultManager(PopulationManager theDefaultManager)` Set the default instance.
`void`	`setRegisteredObjects(java.util.Hashtable registeredObjects)` Set the registered objects.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

registeredObjects

protected java.util.Hashtable registeredObjects

Store the objects registered.

defaultManager

protected static PopulationManager defaultManager

Store the default instance.

Constructor Detail
- PopulationManager
```
public PopulationManager()
```

Method Detail

addAllObjectsForAbstractClass

public void addAllObjectsForAbstractClass(java.lang.Class objectsClass,
                                 org.eclipse.persistence.internal.sessions.AbstractSession session,
                                 java.util.Vector allObjects)

Add all of the objects of the class and all of its subclasses. The session is needed because there is no other way to find all subclasses.

addAllObjectsForAbstractClass

public void addAllObjectsForAbstractClass(java.lang.Class objectsClass,
                                 Session session,
                                 java.util.Vector allObjects)

Add all of the objects of the class and all of its subclasses. The session is needed because there is no other way to find all subclasses.

addAllObjectsForClass

public void addAllObjectsForClass(java.lang.Class objectsClass,
                         java.util.List allObjects)

Add all of the objects of the class.

containsObject

public boolean containsObject(java.lang.Class objectsClass,
                     java.lang.String objectsName)

Check if the object is registered given its name.

containsObject

public boolean containsObject(java.lang.Object objectToCheck,
                     java.lang.String objectsName)

Check if the object is registered given its name.

getAllClasses
```
public java.util.Vector getAllClasses()
```
Return all of the objects registered.

getAllObjects
```
public java.util.Vector getAllObjects()
```
Return all of the objects registered.

getAllObjectsForAbstractClass
```
public java.util.Vector getAllObjectsForAbstractClass(java.lang.Class objectsClass)
```
Return all of the objects of the class and all of its subclasses.

getAllObjectsForAbstractClass

public java.util.Vector getAllObjectsForAbstractClass(java.lang.Class objectsClass,
                                             org.eclipse.persistence.internal.sessions.AbstractSession session)

Return all of the objects of the class and all of its subclasses. The session is needed because there is no other way to find all subclasses.

getAllObjectsForClass

public java.util.Vector getAllObjectsForClass(java.lang.Class objectsClass)

Return all of the objects of the class.

getDefaultManager

public static PopulationManager getDefaultManager()

Lazy initialize the default instance.

getObject

public java.lang.Object getObject(java.lang.Class objectsClass,
                         java.lang.String objectsName)

Return the object registered given its name.

getRegisteredObjects

public java.util.Hashtable getRegisteredObjects()

Return the registered objects.

registerObject

public java.lang.Object registerObject(java.lang.Class javaClass,
                              java.lang.Object objectToRegister,
                              java.lang.String objectsName)

Register the object given its name. The objects are represented as a hashtable of hashtables, lazy initialized on the class.

registerObject
```
public java.lang.Object registerObject(java.lang.Object objectToRegister,
                              java.lang.String objectsName)
```
Register the object given its name. The objects are represented as a hashtable of hashtables, lazy initialized on the class.

removeObject

public void removeObject(java.lang.Class classToRemove,
                java.lang.String objectsName)

Remove the object given its class and name.

removeObject

public java.lang.Object removeObject(java.lang.Object objectToRemove,
                            java.lang.String objectsName)

Remove the object given its name.

resetDefaultManager
```
public static void resetDefaultManager()
```
Reset the default instance.

setDefaultManager

public static void setDefaultManager(PopulationManager theDefaultManager)

Set the default instance.

setRegisteredObjects

public void setRegisteredObjects(java.util.Hashtable registeredObjects)

Set the registered objects.

Class PopulationManager

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

registeredObjects

defaultManager

Constructor Detail

PopulationManager

Method Detail

addAllObjectsForAbstractClass

addAllObjectsForAbstractClass

addAllObjectsForClass

containsObject

containsObject

getAllClasses

getAllObjects

getAllObjectsForAbstractClass

getAllObjectsForAbstractClass

getAllObjectsForClass

getDefaultManager

getObject

getRegisteredObjects

registerObject

registerObject

removeObject

removeObject

resetDefaultManager

setDefaultManager

setRegisteredObjects