Examples of com.sun.jdo.spi.persistence.support.sqlstore.StateManager

Package com.sun.jdo.spi.persistence.support.sqlstore

Examples of com.sun.jdo.spi.persistence.support.sqlstore.StateManager

com.sun.jdo.spi.persistence.support.sqlstore.StateManager
An object that manages the state transitions and the contents of the fields of a JDO Instance. If a JDO Instance is persistent or transactional, it contains a non-null reference to a JDO StateManager instance which is responsible for managing the JDO Instance state changes and for interfacing with the JDO PersistenceManager. Additionally, Persistent JDO Instances refers to an instance of the JDO StateManager instance responsible for the state transitions of the instance as well as managing the contents of the fields of the instance. The JDO StateManager interface is the primary interface used by the JDO Instance to mediate life cycle changes. Non-transient JDO Instances always contain a non-null reference to an associated JDO StateManager instance. When a First Class Object is instantiated in the JVM, the JDO implementation assigns to fields with a Tracked Second Class Object type a new instance that tracks changes made to itself, and notifies the StateManager of the owning First Class Object of the change.

     */
    public StateManager makeDirty()
    {
    if (owner != null)
    {
      StateManager stateManager = owner.jdoGetStateManager();
      
      if (stateManager != null)
      {
        PersistenceManager pm = (PersistenceManager) stateManager.getPersistenceManagerInternal();


        pm.acquireShareLock();
        
        try
        {
          synchronized (stateManager)
          {  
            //
            // Need to recheck owner because it could be set to
            // null before we lock the stateManager.
            //
            if (owner != null)
            {
              stateManager.makeDirty(fieldName);
              return stateManager;
            }
          }
        }
        finally

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  }


  if (elementType == null || elementType.isAssignableFrom(obj.getClass()))
  {
    // Mark the field as dirty
    StateManager stateManager = this.makeDirty();


    Object o = super.elementAt(index);
    super.setElementAt(obj, index);


    if (added.remove(o) == false)

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    public synchronized void removeElementAt(int index) {


  throwUnsupportedOption();


  // Mark the field as dirty
  StateManager stateManager = this.makeDirty();


  Object obj = super.elementAt(index);
        super.removeElementAt(index);
  if (added.remove(obj) == false)
    removed.add(obj);

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        }


        if (elementType == null || elementType.isAssignableFrom(obj.getClass()))
        { 
    // Mark the field as dirty
    StateManager stateManager = this.makeDirty();


                super.insertElementAt(obj, index);
          if (removed.remove(obj) == false)
      added.add(obj);

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        }


        if (elementType == null || elementType.isAssignableFrom(obj.getClass()))
        { 
    // Mark the field as dirty
    StateManager stateManager = this.makeDirty();


                super.addElement(obj);
          if (removed.remove(obj) == false)
      added.add(obj);

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        // Because java.util.Vector.removeElement(Object) calls internally removeElementAt(int)
        // which is not supported, we cannot rely on jdk. We need to process remove here.


        // Mark the field as dirty
        StateManager stateManager = this.makeDirty();


        int i = super.indexOf(obj);
        if (i > -1) {
                super.removeElementAt(i);

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     *
     * @see java.util.Vector
     */ 
    public synchronized void removeAllElements() {
  // Mark the field as dirty
  StateManager stateManager = this.makeDirty();


  for (Iterator iter = super.iterator(); iter.hasNext();) {
    Object o = iter.next();
    if (added.remove(o) == false)
      removed.add(o);

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                return this.remove(index); 
        }
        if (elementType == null || elementType.isAssignableFrom(element.getClass()))
        { 
    // Mark the field as dirty
    StateManager stateManager = this.makeDirty();


    Object o = super.set(index, element);


                if (added.remove(o) == false)
                        removed.add(o);

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        }


  if (elementType == null || elementType.isAssignableFrom(o.getClass()))
        {
    // Mark the field as dirty
    StateManager stateManager = this.makeDirty();


                if (removed.remove(o) == false)
      added.add(o);


          boolean modified = super.add(o);

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    public synchronized Object remove(int index) {


  throwUnsupportedOption();


  // Mark the field as dirty
  StateManager stateManager = this.makeDirty();


        Object obj = super.remove(index);


        if (added.remove(obj) == false)
    removed.add(obj);

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