plugins/org.eclipse.emf.cdo.server.objectivity/src/org/eclipse/emf/cdo/server/internal/objectivity/mapper/NumericManyTypeMapper.java - cdo/cdo - Git at Google

 /*
  * Copyright (c) 2010-2013, 2015 Eike Stepper (Berlin, Germany) and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  *    Ibrahim Sallam - initial API and implementation
  */
 package org.eclipse.emf.cdo.server.internal.objectivity.mapper;

 import org.eclipse.emf.cdo.common.revision.CDORevision;
 import org.eclipse.emf.cdo.server.internal.objectivity.bundle.OM;
 import org.eclipse.emf.cdo.server.internal.objectivity.db.ObjyObject;
 import org.eclipse.emf.cdo.server.internal.objectivity.db.ObjySchema;

 import org.eclipse.net4j.util.om.trace.ContextTracer;

 import org.eclipse.emf.ecore.EStructuralFeature;

 import com.objy.as.app.Class_Object;
 import com.objy.as.app.Numeric_Value;
 import com.objy.as.app.Proposed_Basic_Attribute;
 import com.objy.as.app.Proposed_Class;
 import com.objy.as.app.Proposed_Property;
 import com.objy.as.app.VArray_Object;
 import com.objy.as.app.d_Access_Kind;
 import com.objy.as.app.d_Attribute;
 import com.objy.as.app.d_Class;
 import com.objy.as.app.d_Module;
 import com.objy.as.app.ooBaseType;

 import java.util.Date;

 /**
  * @author Ibrahim Sallam
  */
 public abstract class NumericManyTypeMapper extends BasicTypeMapper implements IManyTypeMapper
 {

   protected abstract Object fromNumericValue(Numeric_Value numericValue, boolean isNull);

   protected abstract Numeric_Value toNumericValue(Object value);

   protected abstract ooBaseType getObjyBaseType();

   private static final ContextTracer TRACER_DEBUG = new ContextTracer(OM.DEBUG, NumericManyTypeMapper.class);

   public static NumericManyTypeMapper.TMBoolean TMBOOLEAN = new TMBoolean();

   public static NumericManyTypeMapper.TMByte TMBYTE = new TMByte();

   public static NumericManyTypeMapper.TMChar TMCHAR = new TMChar();

   public static NumericManyTypeMapper.TMDate TMDATE = new TMDate();

   public static NumericManyTypeMapper.TMDouble TMDOUBLE = new TMDouble();

   public static NumericManyTypeMapper.TMFloat TMFLOAT = new TMFloat();

   public static NumericManyTypeMapper.TMInteger TMINTEGER = new TMInteger();

   public static NumericManyTypeMapper.TMLong TMLONG = new TMLong();

   public static NumericManyTypeMapper.TMShort TMSHORT = new TMShort();

   // ---------------------------------
   // Schema
   // ---------------------------------

   private String embeddedClassName()
   {
     return "oo_" + getObjyBaseType() + "_Class";
   }

   private d_Class getEmbeddedClass()
   {
     d_Class embeddedClass = ObjySchema.getTopModule().resolve_class(embeddedClassName());
     // System.out.println("OBJY: Resolving className: " + embeddedClassName() + " - d_Class: " + embeddedClass);
     return embeddedClass;
   }

   private boolean createEmbeddedClass()
   {
     boolean bDone = true;

     d_Module top_mod = ObjySchema.getTopModule();
     boolean inProcess = top_mod.proposed_classes().hasNext();

     Proposed_Class propClass = top_mod.propose_new_class(embeddedClassName());

     propClass.add_basic_attribute(com.objy.as.app.d_Module.LAST, d_Access_Kind.d_PUBLIC, // Access kind
         embeddedAttributeName, // Attribute name
         1, // # elements in fixed-size array
         getObjyBaseType() // Type of numeric data
     ); // Default value

     propClass.add_basic_attribute(com.objy.as.app.d_Module.LAST, d_Access_Kind.d_PUBLIC, // Access kind
         embeddedAttributeNull, // Attribute name
         1, // # elements in fixed-size array
         ooBaseType.ooBOOLEAN// Type of numeric data
     ); // Default value

     // System.out.println("OBJY: Propose Creating new class: " + embeddedClassName());

     // ObjySchema.getTopModule().propose_new_class(propClass);
     if (!inProcess)
     {
       top_mod.activate_proposals(true, true);
     }

     return bDone;
   }

   /**
    *
    */
   public boolean createSchema(Proposed_Class proposedClass, EStructuralFeature feature)
   {
     if (TRACER_DEBUG.isEnabled())
     {
       TRACER_DEBUG.trace("Adding attribute " + feature.getName() + "  " + this.getClass().getName());
     }

     // create an embedded class (attributeType, attributeIsNull).
     // TODO - we might need to move this to the .objectivity.schema, since it's
     // independent of the model classes.

     if (getEmbeddedClass() == null && !createEmbeddedClass())
     {
       return false;
     }

     // create array of embedded class type.
     proposedClass.add_varray_attribute(com.objy.as.app.d_Module.LAST, d_Access_Kind.d_PUBLIC, // Access kind
         getAttributeName(feature), // Attribute name
         1, embeddedClassName());

     return false;
   }

   /**
    * TODO - this is a simple change to the attribute, make it handle more complex cases. I also don't think it does
    * handle the arrays.
    *
    * @param proposedooClass
    * @param feature
    */
   public void modifySchema(Proposed_Class proposedooClass, EStructuralFeature feature)
   {
     Proposed_Property prop = proposedooClass.resolve_property(getAttributeName(feature));

     if (prop instanceof Proposed_Basic_Attribute)
     {
       Proposed_Basic_Attribute attr = (Proposed_Basic_Attribute)prop;
       attr.change_base_type(getObjyBaseType());
     }
   }

   /**
    * TBD - Fixed size array attributes can't be accessed, so we can't validate This!!! OFJ (Fix it)
    */
   public boolean validate(d_Attribute dAttribute, EStructuralFeature feature)
   {
     System.out.println(">>>OBJYIMPL: NumericManyTypeMapper.validate() - not implemented.");
     return true;
     // d_Class varrayClass = dAttribute.class_type_of();
     // d_Class embeddedClass = varrayClass.
     // Class_Position position = embeddedClass.position_in_class(getAttributeName(feature));
     // //d_Type type = ooAttribute.type_of();
     // d_Type type = embeddedClass.attribute_at_position(position).type_of();
     // if (TRACER_DEBUG.isEnabled()) {
     // TRACER_DEBUG.trace(getAttributeName(feature) + " "
     // + ((Basic_Type) type).base_type() + " basic type "
     // + type.is_basic_type() + " - " + getObjyBaseType());
     // }
     // return type.is_basic_type()
     // && ((Basic_Type) type).base_type() == getObjyBaseType();
   }

   // ---------------------------------
   // Object
   // ---------------------------------

   public void setValue(ObjyObject objyObject, EStructuralFeature feature, int index, Object newValue)
   {
     // System.out.println("OBJY: Set value in VArray at index: "+ index + " - value: " + newValue);
     boolean isNull = newValue == null;
     Numeric_Value numericValue = toNumericValue(newValue);
     Numeric_Value isNullValue = isNull ? numericTrue : numericFalse;

     Class_Object embedded = getArray(objyObject, feature).get_class_obj(index);

     embedded.set_numeric(valueAttributePosition, numericValue);
     embedded.set_numeric(nullAttributePosition, isNullValue);
   }

   // get a single object/value at index.
   public Object getValue(ObjyObject objyObject, EStructuralFeature feature, int index)
   {
     Numeric_Value numericValue = null;

     Class_Object embedded = getArray(objyObject, feature).get_class_obj(index);

     numericValue = embedded.get_numeric(valueAttributePosition);
     boolean isNull = embedded.get_numeric(nullAttributePosition).booleanValue();

     return fromNumericValue(numericValue, isNull);
   }

   // remove a single value at index, it will set the value to default, and mark it
   // as "null", i.e. unset.
   public Object remove(ObjyObject objyObject, EStructuralFeature feature, int index)
   {
     // we'll just get the original value, and set the value to null.
     // Numeric_Value numericValue = null;

     long size = (int)getArray(objyObject, feature).size();
     for (int i = index; i < size - 1; i++)
     {
       setValue(objyObject, feature, i, getValue(objyObject, feature, i + 1));
     }
     // resize the array.
     getArray(objyObject, feature).resize(size - 1);
     /*
      * Class_Object embedded = getArray(objyObject, feature).get_class_obj(index); numericValue =
      * embedded.get_numeric(valueAttributePosition); boolean isNull =
      * embedded.get_numeric(nullAttributePosition).booleanValue(); Object oldValue = fromNumericValue(numericValue,
      * isNull); numericValue = toNumericValue(null); embedded.set_numeric(valueAttributePosition, numericValue);
      * embedded.set_numeric(nullAttributePosition, numericTrue);
      */
     return null;
   }

   // add value at index (extend the collection size).
   public void add(ObjyObject objyObject, EStructuralFeature feature, int index, Object value)
   {
     int arraySize = size(objyObject, feature);
     // System.out.println("OBJY: Adding object inside VArray at index: "+ index + " - value: " + value);
     if (index < arraySize - 1)
     {
       // throw new UnsupportedOperationException("adding object inside VArray?!!... Implement Me!!!");
       // resize the VArray.
       VArray_Object array = getArray(objyObject, feature);
       array.resize(arraySize + 1);
       for (int i = arraySize; i > index; i--)
       {
         Class_Object newEmbedded = array.get_class_obj(i);
         Class_Object oldEmbedded = array.get_class_obj(i - 1);
         newEmbedded.set_numeric(valueAttributePosition, oldEmbedded.get_numeric(valueAttributePosition));
         newEmbedded.set_numeric(nullAttributePosition, oldEmbedded.get_numeric(nullAttributePosition));
       }
     }
     if (index != -1 && index > arraySize)
     {
       throw new UnsupportedOperationException("adding object beyond VArray size()?!!... Implement Me!!!");
     }

     getArray(objyObject, feature).resize(arraySize + 1);

     setValue(objyObject, feature, index, value);
   }

   public// add all objects starting from an index. (extend the collection size).
   void addAll(ObjyObject objyObject, EStructuralFeature feature, int index, Object[] values)
   {
     // System.out.println("OBJY: AddAll objects inside VArray at index: "+ index + " - values: " + values);
     int arraySize = size(objyObject, feature);
     if (index < arraySize - 1)
     {
       throw new UnsupportedOperationException("adding objects inside VArray?!!... Implement Me!!!");
     }

     if (index != -1 && index > arraySize)
     {
       throw new UnsupportedOperationException("adding objects beyond VArray size()?!!... Implement Me!!!");
     }

     int newSize = arraySize + values.length;
     getArray(objyObject, feature).resize(newSize);

     for (int i = 0; i < values.length; i++)
     {
       setValue(objyObject, feature, arraySize + i, values[i]);
     }
   }

   // clear all collection.
   public void clear(ObjyObject objyObject, EStructuralFeature feature)
   {
     // set the varray size to 0.
     getArray(objyObject, feature).resize(0);
   }

   // this is similar to addAll, but it replaces the existing ones.
   public void setAll(ObjyObject objyObject, EStructuralFeature feature, int index, Object[] newValues)
   {

     VArray_Object array = getArray(objyObject, feature);

     array.resize(newValues.length);
     for (int i = 0; i < newValues.length; i++)
     {
       // TODO - we might need to optimize this!!!
       setValue(objyObject, feature, i, newValues[i]);
     }
   }

   // get all objects/values starting from an index.
   public Object[] getAll(ObjyObject objyObject, EStructuralFeature feature, int index, int chunkSize)
   {
     int size = size(objyObject, feature);

     if (chunkSize != CDORevision.UNCHUNKED)
     {
       size = Math.min(size, chunkSize);
     }

     Object[] values = new Object[size];

     // TODO - we might need to optimize this!!!!
     for (int i = 0; i < size; i++)
     {
       values[i] = getValue(objyObject, feature, i + index);
     }
     return values;
   }

   // return the size of the collection.
   public int size(ObjyObject objyObject, EStructuralFeature feature)
   {
     return (int)getArray(objyObject, feature).size();
   }

   public void delete(ObjyObject objyObject, EStructuralFeature feature)
   {
     throw new UnsupportedOperationException("Implement me!!");
   }

   public void move(ObjyObject objyObject, EStructuralFeature feature, int targetIndex, int sourceIndex)
   {
     if (targetIndex == sourceIndex)
     {
       return;
     }

     // get the object at sourceIndex.
     Object value = getValue(objyObject, feature, sourceIndex);

     // long size = (int)getArray(objyObject, feature).size();
     // TODO - check boundaries...

     if (sourceIndex > targetIndex)
     {
       for (int i = sourceIndex; i > targetIndex; i--)
       {
         setValue(objyObject, feature, i, getValue(objyObject, feature, i - 1));
       }
     }
     else if (sourceIndex < targetIndex)
     {
       for (int i = sourceIndex; i < targetIndex; i++)
       {
         setValue(objyObject, feature, i, getValue(objyObject, feature, i + 1));
       }
     }
     // set the saved value at target
     setValue(objyObject, feature, targetIndex, value);

   }

   public void initialize(Class_Object classObject, EStructuralFeature feature)
   {
     // TODO - verify if we need to do any initialization!!!
   }

   protected VArray_Object getArray(ObjyObject objyObject, EStructuralFeature feature)
   {
     // Class_Position position = getAttributePosition(objyObject, feature);
     String attributeName = getAttributeName(feature);
     return objyObject.get_varray(attributeName/* position */);
   }

   // ------------------------------------------------------------------------
   // ------------------- Various types --------------------------
   // ------------------------------------------------------------------------

   // ---------------------------
   // Boolean
   // ---------------------------
   public static class TMBoolean extends NumericManyTypeMapper
   {
     @Override
     protected ooBaseType getObjyBaseType()
     {
       return ooBaseType.ooBOOLEAN;
     }

     @Override
     protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
     {
       Boolean value = null;
       if (!isNull)
       {
         value = numericValue.booleanValue();
       }
       return value;
     }

     @Override
     protected Numeric_Value toNumericValue(Object value)
     {
       if (value == null)
       {
         return new Numeric_Value(false);
       }

       return new Numeric_Value(((Boolean)value).booleanValue());
     }
   }

   // ---------------------------
   // Byte
   // ---------------------------
   public static class TMByte extends NumericManyTypeMapper
   {
     @Override
     public ooBaseType getObjyBaseType()
     {
       return ooBaseType.ooINT8;
     }

     @Override
     protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
     {
       Byte value = null;
       if (!isNull)
       {
         value = numericValue.byteValue();
       }
       return value;

     }

     @Override
     protected Numeric_Value toNumericValue(Object value)
     {
       if (value == null)
       {
         return new Numeric_Value(0);
       }

       return new Numeric_Value(((Byte)value).byteValue());
     }
   }

   // ---------------------------
   // Char
   // ---------------------------
   public static class TMChar extends NumericManyTypeMapper
   {
     @Override
     public ooBaseType getObjyBaseType()
     {
       return ooBaseType.ooINT8;
     }

     @Override
     protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
     {
       Character value = null;
       if (!isNull)
       {
         value = numericValue.charValue();
       }
       return value;

     }

     @Override
     protected Numeric_Value toNumericValue(Object value)
     {
       if (value == null)
       {
         return new Numeric_Value(0);
       }

       return new Numeric_Value(((Character)value).charValue());
     }
   }

   // ---------------------------
   // Date
   // ---------------------------
   public static class TMDate extends NumericManyTypeMapper
   {
     @Override
     public ooBaseType getObjyBaseType()
     {
       return ooBaseType.ooINT64;
     }

     @Override
     protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
     {
       Date value = null;
       if (!isNull)
       {
         value = new Date(numericValue.longValue());
       }
       return value;

     }

     @Override
     protected Numeric_Value toNumericValue(Object value)
     {
       if (value == null)
       {
         return new Numeric_Value(0);
       }

       return new Numeric_Value(((Date)value).getTime());
     }
   }

   // ---------------------------
   // Double
   // ---------------------------
   public static class TMDouble extends NumericManyTypeMapper
   {
     @Override
     public ooBaseType getObjyBaseType()
     {
       return ooBaseType.ooFLOAT64;
     }

     @Override
     protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
     {
       Double value = null;
       if (!isNull)
       {
         value = numericValue.doubleValue();
       }
       return value;

     }

     @Override
     protected Numeric_Value toNumericValue(Object value)
     {
       if (value == null)
       {
         return new Numeric_Value(0.0);
       }

       return new Numeric_Value(((Double)value).doubleValue());
     }
   }

   // ---------------------------
   // Float
   // ---------------------------
   public static class TMFloat extends NumericManyTypeMapper
   {
     @Override
     protected ooBaseType getObjyBaseType()
     {
       return ooBaseType.ooFLOAT64;
     }

     @Override
     protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
     {
       Float value = null;
       if (!isNull)
       {
         value = numericValue.floatValue();
       }
       return value;

     }

     @Override
     protected Numeric_Value toNumericValue(Object value)
     {
       if (value == null)
       {
         return new Numeric_Value(0.0);
       }

       return new Numeric_Value(((Float)value).floatValue());
     }
   }

   // ---------------------------
   // Integer
   // ---------------------------
   public static class TMInteger extends NumericManyTypeMapper
   {
     @Override
     public ooBaseType getObjyBaseType()
     {
       return ooBaseType.ooINT32;
     }

     @Override
     protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
     {
       Integer value = null;
       if (!isNull)
       {
         value = numericValue.intValue();
       }
       return value;
     }

     @Override
     protected Numeric_Value toNumericValue(Object value)
     {
       if (value == null)
       {
         return new Numeric_Value(0);
       }

       return new Numeric_Value(((Integer)value).intValue());
     }
   }

   // ---------------------------
   // Long
   // ---------------------------
   public static class TMLong extends NumericManyTypeMapper
   {
     @Override
     public ooBaseType getObjyBaseType()
     {
       return ooBaseType.ooINT64;
     }

     @Override
     protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
     {
       Long value = null;
       if (!isNull)
       {
         value = numericValue.longValue();
       }
       return value;

     }

     @Override
     protected Numeric_Value toNumericValue(Object value)
     {
       if (value == null)
       {
         return new Numeric_Value(0);
       }

       return new Numeric_Value(((Long)value).longValue());
     }
   }

   // ---------------------------
   // Short
   // ---------------------------
   public static class TMShort extends NumericManyTypeMapper
   {
     @Override
     public ooBaseType getObjyBaseType()
     {
       return ooBaseType.ooINT16;
     }

     @Override
     protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
     {
       Short value = null;
       if (!isNull)
       {
         value = numericValue.shortValue();
       }
       return value;
     }

     @Override
     protected Numeric_Value toNumericValue(Object value)
     {
       if (value == null)
       {
         return new Numeric_Value(0);
       }

       return new Numeric_Value(((Short)value).shortValue());
     }
   }

 }
	/*
	* Copyright (c) 2010-2013, 2015 Eike Stepper (Berlin, Germany) and others.
	* All rights reserved. This program and the accompanying materials
	* are made available under the terms of the Eclipse Public License v1.0
	* which accompanies this distribution, and is available at
	* http://www.eclipse.org/legal/epl-v10.html
	*
	* Contributors:
	* Ibrahim Sallam - initial API and implementation
	*/
	package org.eclipse.emf.cdo.server.internal.objectivity.mapper;

	import org.eclipse.emf.cdo.common.revision.CDORevision;
	import org.eclipse.emf.cdo.server.internal.objectivity.bundle.OM;
	import org.eclipse.emf.cdo.server.internal.objectivity.db.ObjyObject;
	import org.eclipse.emf.cdo.server.internal.objectivity.db.ObjySchema;

	import org.eclipse.net4j.util.om.trace.ContextTracer;

	import org.eclipse.emf.ecore.EStructuralFeature;

	import com.objy.as.app.Class_Object;
	import com.objy.as.app.Numeric_Value;
	import com.objy.as.app.Proposed_Basic_Attribute;
	import com.objy.as.app.Proposed_Class;
	import com.objy.as.app.Proposed_Property;
	import com.objy.as.app.VArray_Object;
	import com.objy.as.app.d_Access_Kind;
	import com.objy.as.app.d_Attribute;
	import com.objy.as.app.d_Class;
	import com.objy.as.app.d_Module;
	import com.objy.as.app.ooBaseType;

	import java.util.Date;

	/**
	* @author Ibrahim Sallam
	*/
	public abstract class NumericManyTypeMapper extends BasicTypeMapper implements IManyTypeMapper
	{

	protected abstract Object fromNumericValue(Numeric_Value numericValue, boolean isNull);

	protected abstract Numeric_Value toNumericValue(Object value);

	protected abstract ooBaseType getObjyBaseType();

	private static final ContextTracer TRACER_DEBUG = new ContextTracer(OM.DEBUG, NumericManyTypeMapper.class);

	public static NumericManyTypeMapper.TMBoolean TMBOOLEAN = new TMBoolean();

	public static NumericManyTypeMapper.TMByte TMBYTE = new TMByte();

	public static NumericManyTypeMapper.TMChar TMCHAR = new TMChar();

	public static NumericManyTypeMapper.TMDate TMDATE = new TMDate();

	public static NumericManyTypeMapper.TMDouble TMDOUBLE = new TMDouble();

	public static NumericManyTypeMapper.TMFloat TMFLOAT = new TMFloat();

	public static NumericManyTypeMapper.TMInteger TMINTEGER = new TMInteger();

	public static NumericManyTypeMapper.TMLong TMLONG = new TMLong();

	public static NumericManyTypeMapper.TMShort TMSHORT = new TMShort();

	// ---------------------------------
	// Schema
	// ---------------------------------

	private String embeddedClassName()
	{
	return "oo_" + getObjyBaseType() + "_Class";
	}

	private d_Class getEmbeddedClass()
	{
	d_Class embeddedClass = ObjySchema.getTopModule().resolve_class(embeddedClassName());
	// System.out.println("OBJY: Resolving className: " + embeddedClassName() + " - d_Class: " + embeddedClass);
	return embeddedClass;
	}

	private boolean createEmbeddedClass()
	{
	boolean bDone = true;

	d_Module top_mod = ObjySchema.getTopModule();
	boolean inProcess = top_mod.proposed_classes().hasNext();

	Proposed_Class propClass = top_mod.propose_new_class(embeddedClassName());

	propClass.add_basic_attribute(com.objy.as.app.d_Module.LAST, d_Access_Kind.d_PUBLIC, // Access kind
	embeddedAttributeName, // Attribute name
	1, // # elements in fixed-size array
	getObjyBaseType() // Type of numeric data
	); // Default value

	propClass.add_basic_attribute(com.objy.as.app.d_Module.LAST, d_Access_Kind.d_PUBLIC, // Access kind
	embeddedAttributeNull, // Attribute name
	1, // # elements in fixed-size array
	ooBaseType.ooBOOLEAN// Type of numeric data
	); // Default value

	// System.out.println("OBJY: Propose Creating new class: " + embeddedClassName());

	// ObjySchema.getTopModule().propose_new_class(propClass);
	if (!inProcess)
	{
	top_mod.activate_proposals(true, true);
	}

	return bDone;
	}

	/**
	*
	*/
	public boolean createSchema(Proposed_Class proposedClass, EStructuralFeature feature)
	{
	if (TRACER_DEBUG.isEnabled())
	{
	TRACER_DEBUG.trace("Adding attribute " + feature.getName() + " " + this.getClass().getName());
	}

	// create an embedded class (attributeType, attributeIsNull).
	// TODO - we might need to move this to the .objectivity.schema, since it's
	// independent of the model classes.

	if (getEmbeddedClass() == null && !createEmbeddedClass())
	{
	return false;
	}

	// create array of embedded class type.
	proposedClass.add_varray_attribute(com.objy.as.app.d_Module.LAST, d_Access_Kind.d_PUBLIC, // Access kind
	getAttributeName(feature), // Attribute name
	1, embeddedClassName());

	return false;
	}

	/**
	* TODO - this is a simple change to the attribute, make it handle more complex cases. I also don't think it does
	* handle the arrays.
	*
	* @param proposedooClass
	* @param feature
	*/
	public void modifySchema(Proposed_Class proposedooClass, EStructuralFeature feature)
	{
	Proposed_Property prop = proposedooClass.resolve_property(getAttributeName(feature));

	if (prop instanceof Proposed_Basic_Attribute)
	{
	Proposed_Basic_Attribute attr = (Proposed_Basic_Attribute)prop;
	attr.change_base_type(getObjyBaseType());
	}
	}

	/**
	* TBD - Fixed size array attributes can't be accessed, so we can't validate This!!! OFJ (Fix it)
	*/
	public boolean validate(d_Attribute dAttribute, EStructuralFeature feature)
	{
	System.out.println(">>>OBJYIMPL: NumericManyTypeMapper.validate() - not implemented.");
	return true;
	// d_Class varrayClass = dAttribute.class_type_of();
	// d_Class embeddedClass = varrayClass.
	// Class_Position position = embeddedClass.position_in_class(getAttributeName(feature));
	// //d_Type type = ooAttribute.type_of();
	// d_Type type = embeddedClass.attribute_at_position(position).type_of();
	// if (TRACER_DEBUG.isEnabled()) {
	// TRACER_DEBUG.trace(getAttributeName(feature) + " "
	// + ((Basic_Type) type).base_type() + " basic type "
	// + type.is_basic_type() + " - " + getObjyBaseType());
	// }
	// return type.is_basic_type()
	// && ((Basic_Type) type).base_type() == getObjyBaseType();
	}

	// ---------------------------------
	// Object
	// ---------------------------------

	public void setValue(ObjyObject objyObject, EStructuralFeature feature, int index, Object newValue)
	{
	// System.out.println("OBJY: Set value in VArray at index: "+ index + " - value: " + newValue);
	boolean isNull = newValue == null;
	Numeric_Value numericValue = toNumericValue(newValue);
	Numeric_Value isNullValue = isNull ? numericTrue : numericFalse;

	Class_Object embedded = getArray(objyObject, feature).get_class_obj(index);

	embedded.set_numeric(valueAttributePosition, numericValue);
	embedded.set_numeric(nullAttributePosition, isNullValue);
	}

	// get a single object/value at index.
	public Object getValue(ObjyObject objyObject, EStructuralFeature feature, int index)
	{
	Numeric_Value numericValue = null;

	Class_Object embedded = getArray(objyObject, feature).get_class_obj(index);

	numericValue = embedded.get_numeric(valueAttributePosition);
	boolean isNull = embedded.get_numeric(nullAttributePosition).booleanValue();

	return fromNumericValue(numericValue, isNull);
	}

	// remove a single value at index, it will set the value to default, and mark it
	// as "null", i.e. unset.
	public Object remove(ObjyObject objyObject, EStructuralFeature feature, int index)
	{
	// we'll just get the original value, and set the value to null.
	// Numeric_Value numericValue = null;

	long size = (int)getArray(objyObject, feature).size();
	for (int i = index; i < size - 1; i++)
	{
	setValue(objyObject, feature, i, getValue(objyObject, feature, i + 1));
	}
	// resize the array.
	getArray(objyObject, feature).resize(size - 1);
	/*
	* Class_Object embedded = getArray(objyObject, feature).get_class_obj(index); numericValue =
	* embedded.get_numeric(valueAttributePosition); boolean isNull =
	* embedded.get_numeric(nullAttributePosition).booleanValue(); Object oldValue = fromNumericValue(numericValue,
	* isNull); numericValue = toNumericValue(null); embedded.set_numeric(valueAttributePosition, numericValue);
	* embedded.set_numeric(nullAttributePosition, numericTrue);
	*/
	return null;
	}

	// add value at index (extend the collection size).
	public void add(ObjyObject objyObject, EStructuralFeature feature, int index, Object value)
	{
	int arraySize = size(objyObject, feature);
	// System.out.println("OBJY: Adding object inside VArray at index: "+ index + " - value: " + value);
	if (index < arraySize - 1)
	{
	// throw new UnsupportedOperationException("adding object inside VArray?!!... Implement Me!!!");
	// resize the VArray.
	VArray_Object array = getArray(objyObject, feature);
	array.resize(arraySize + 1);
	for (int i = arraySize; i > index; i--)
	{
	Class_Object newEmbedded = array.get_class_obj(i);
	Class_Object oldEmbedded = array.get_class_obj(i - 1);
	newEmbedded.set_numeric(valueAttributePosition, oldEmbedded.get_numeric(valueAttributePosition));
	newEmbedded.set_numeric(nullAttributePosition, oldEmbedded.get_numeric(nullAttributePosition));
	}
	}
	if (index != -1 && index > arraySize)
	{
	throw new UnsupportedOperationException("adding object beyond VArray size()?!!... Implement Me!!!");
	}

	getArray(objyObject, feature).resize(arraySize + 1);

	setValue(objyObject, feature, index, value);
	}

	public// add all objects starting from an index. (extend the collection size).
	void addAll(ObjyObject objyObject, EStructuralFeature feature, int index, Object[] values)
	{
	// System.out.println("OBJY: AddAll objects inside VArray at index: "+ index + " - values: " + values);
	int arraySize = size(objyObject, feature);
	if (index < arraySize - 1)
	{
	throw new UnsupportedOperationException("adding objects inside VArray?!!... Implement Me!!!");
	}

	if (index != -1 && index > arraySize)
	{
	throw new UnsupportedOperationException("adding objects beyond VArray size()?!!... Implement Me!!!");
	}

	int newSize = arraySize + values.length;
	getArray(objyObject, feature).resize(newSize);

	for (int i = 0; i < values.length; i++)
	{
	setValue(objyObject, feature, arraySize + i, values[i]);
	}
	}

	// clear all collection.
	public void clear(ObjyObject objyObject, EStructuralFeature feature)
	{
	// set the varray size to 0.
	getArray(objyObject, feature).resize(0);
	}

	// this is similar to addAll, but it replaces the existing ones.
	public void setAll(ObjyObject objyObject, EStructuralFeature feature, int index, Object[] newValues)
	{

	VArray_Object array = getArray(objyObject, feature);

	array.resize(newValues.length);
	for (int i = 0; i < newValues.length; i++)
	{
	// TODO - we might need to optimize this!!!
	setValue(objyObject, feature, i, newValues[i]);
	}
	}

	// get all objects/values starting from an index.
	public Object[] getAll(ObjyObject objyObject, EStructuralFeature feature, int index, int chunkSize)
	{
	int size = size(objyObject, feature);

	if (chunkSize != CDORevision.UNCHUNKED)
	{
	size = Math.min(size, chunkSize);
	}

	Object[] values = new Object[size];

	// TODO - we might need to optimize this!!!!
	for (int i = 0; i < size; i++)
	{
	values[i] = getValue(objyObject, feature, i + index);
	}
	return values;
	}

	// return the size of the collection.
	public int size(ObjyObject objyObject, EStructuralFeature feature)
	{
	return (int)getArray(objyObject, feature).size();
	}

	public void delete(ObjyObject objyObject, EStructuralFeature feature)
	{
	throw new UnsupportedOperationException("Implement me!!");
	}

	public void move(ObjyObject objyObject, EStructuralFeature feature, int targetIndex, int sourceIndex)
	{
	if (targetIndex == sourceIndex)
	{
	return;
	}

	// get the object at sourceIndex.
	Object value = getValue(objyObject, feature, sourceIndex);

	// long size = (int)getArray(objyObject, feature).size();
	// TODO - check boundaries...

	if (sourceIndex > targetIndex)
	{
	for (int i = sourceIndex; i > targetIndex; i--)
	{
	setValue(objyObject, feature, i, getValue(objyObject, feature, i - 1));
	}
	}
	else if (sourceIndex < targetIndex)
	{
	for (int i = sourceIndex; i < targetIndex; i++)
	{
	setValue(objyObject, feature, i, getValue(objyObject, feature, i + 1));
	}
	}
	// set the saved value at target
	setValue(objyObject, feature, targetIndex, value);

	}

	public void initialize(Class_Object classObject, EStructuralFeature feature)
	{
	// TODO - verify if we need to do any initialization!!!
	}

	protected VArray_Object getArray(ObjyObject objyObject, EStructuralFeature feature)
	{
	// Class_Position position = getAttributePosition(objyObject, feature);
	String attributeName = getAttributeName(feature);
	return objyObject.get_varray(attributeName/* position */);
	}

	// ------------------------------------------------------------------------
	// ------------------- Various types --------------------------
	// ------------------------------------------------------------------------

	// ---------------------------
	// Boolean
	// ---------------------------
	public static class TMBoolean extends NumericManyTypeMapper
	{
	@Override
	protected ooBaseType getObjyBaseType()
	{
	return ooBaseType.ooBOOLEAN;
	}

	@Override
	protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
	{
	Boolean value = null;
	if (!isNull)
	{
	value = numericValue.booleanValue();
	}
	return value;
	}

	@Override
	protected Numeric_Value toNumericValue(Object value)
	{
	if (value == null)
	{
	return new Numeric_Value(false);
	}

	return new Numeric_Value(((Boolean)value).booleanValue());
	}
	}

	// ---------------------------
	// Byte
	// ---------------------------
	public static class TMByte extends NumericManyTypeMapper
	{
	@Override
	public ooBaseType getObjyBaseType()
	{
	return ooBaseType.ooINT8;
	}

	@Override
	protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
	{
	Byte value = null;
	if (!isNull)
	{
	value = numericValue.byteValue();
	}
	return value;

	}

	@Override
	protected Numeric_Value toNumericValue(Object value)
	{
	if (value == null)
	{
	return new Numeric_Value(0);
	}

	return new Numeric_Value(((Byte)value).byteValue());
	}
	}

	// ---------------------------
	// Char
	// ---------------------------
	public static class TMChar extends NumericManyTypeMapper
	{
	@Override
	public ooBaseType getObjyBaseType()
	{
	return ooBaseType.ooINT8;
	}

	@Override
	protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
	{
	Character value = null;
	if (!isNull)
	{
	value = numericValue.charValue();
	}
	return value;

	}

	@Override
	protected Numeric_Value toNumericValue(Object value)
	{
	if (value == null)
	{
	return new Numeric_Value(0);
	}

	return new Numeric_Value(((Character)value).charValue());
	}
	}

	// ---------------------------
	// Date
	// ---------------------------
	public static class TMDate extends NumericManyTypeMapper
	{
	@Override
	public ooBaseType getObjyBaseType()
	{
	return ooBaseType.ooINT64;
	}

	@Override
	protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
	{
	Date value = null;
	if (!isNull)
	{
	value = new Date(numericValue.longValue());
	}
	return value;

	}

	@Override
	protected Numeric_Value toNumericValue(Object value)
	{
	if (value == null)
	{
	return new Numeric_Value(0);
	}

	return new Numeric_Value(((Date)value).getTime());
	}
	}

	// ---------------------------
	// Double
	// ---------------------------
	public static class TMDouble extends NumericManyTypeMapper
	{
	@Override
	public ooBaseType getObjyBaseType()
	{
	return ooBaseType.ooFLOAT64;
	}

	@Override
	protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
	{
	Double value = null;
	if (!isNull)
	{
	value = numericValue.doubleValue();
	}
	return value;

	}

	@Override
	protected Numeric_Value toNumericValue(Object value)
	{
	if (value == null)
	{
	return new Numeric_Value(0.0);
	}

	return new Numeric_Value(((Double)value).doubleValue());
	}
	}

	// ---------------------------
	// Float
	// ---------------------------
	public static class TMFloat extends NumericManyTypeMapper
	{
	@Override
	protected ooBaseType getObjyBaseType()
	{
	return ooBaseType.ooFLOAT64;
	}

	@Override
	protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
	{
	Float value = null;
	if (!isNull)
	{
	value = numericValue.floatValue();
	}
	return value;

	}

	@Override
	protected Numeric_Value toNumericValue(Object value)
	{
	if (value == null)
	{
	return new Numeric_Value(0.0);
	}

	return new Numeric_Value(((Float)value).floatValue());
	}
	}

	// ---------------------------
	// Integer
	// ---------------------------
	public static class TMInteger extends NumericManyTypeMapper
	{
	@Override
	public ooBaseType getObjyBaseType()
	{
	return ooBaseType.ooINT32;
	}

	@Override
	protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
	{
	Integer value = null;
	if (!isNull)
	{
	value = numericValue.intValue();
	}
	return value;
	}

	@Override
	protected Numeric_Value toNumericValue(Object value)
	{
	if (value == null)
	{
	return new Numeric_Value(0);
	}

	return new Numeric_Value(((Integer)value).intValue());
	}
	}

	// ---------------------------
	// Long
	// ---------------------------
	public static class TMLong extends NumericManyTypeMapper
	{
	@Override
	public ooBaseType getObjyBaseType()
	{
	return ooBaseType.ooINT64;
	}

	@Override
	protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
	{
	Long value = null;
	if (!isNull)
	{
	value = numericValue.longValue();
	}
	return value;

	}

	@Override
	protected Numeric_Value toNumericValue(Object value)
	{
	if (value == null)
	{
	return new Numeric_Value(0);
	}

	return new Numeric_Value(((Long)value).longValue());
	}
	}

	// ---------------------------
	// Short
	// ---------------------------
	public static class TMShort extends NumericManyTypeMapper
	{
	@Override
	public ooBaseType getObjyBaseType()
	{
	return ooBaseType.ooINT16;
	}

	@Override
	protected Object fromNumericValue(Numeric_Value numericValue, boolean isNull)
	{
	Short value = null;
	if (!isNull)
	{
	value = numericValue.shortValue();
	}
	return value;
	}

	@Override
	protected Numeric_Value toNumericValue(Object value)
	{
	if (value == null)
	{
	return new Numeric_Value(0);
	}

	return new Numeric_Value(((Short)value).shortValue());
	}
	}

	}