package org.andromda.metafacades.emf.uml2;
import java.util.Collection;
import java.util.Iterator;
import org.andromda.core.metafacade.MetafacadeImplsException;
import org.andromda.metafacades.uml.AssociationEndFacade;
import org.andromda.metafacades.uml.ClassifierFacade;
import org.andromda.metafacades.uml.Entity;
import org.andromda.metafacades.uml.EntityMetafacadeUtils;
import org.andromda.metafacades.uml.UMLMetafacadeProperties;
import org.andromda.metafacades.uml.UMLProfile;
import org.apache.commons.lang.ObjectUtils;
import org.apache.commons.lang.StringUtils;
import org.eclipse.uml2.Association;
import org.eclipse.uml2.Property;
import org.eclipse.uml2.Type;
/**
* MetafacadeLogic implementation for
* org.andromda.metafacades.uml.EntityAssociation.
*
* @see org.andromda.metafacades.uml.EntityAssociation
*/
public class EntityAssociationLogicImpl
extends EntityAssociationLogic
{
public EntityAssociationLogicImpl(
final Object metaObject,
final String context)
{
super(metaObject, context);
}
/**
* @see org.andromda.metafacades.uml.EntityAssociation#getTableName()
*/
protected java.lang.String handleGetTableName()
{
String tableName = null;
final Collection ends = this.getAssociationEnds();
if (ends != null && !ends.isEmpty())
{
final AssociationEndFacade end = (AssociationEndFacade)ends.iterator().next();
final ClassifierFacade type = end.getType();
if (type != null && end.isMany2Many())
{
// - prevent ClassCastException if the association isn't an
// Entity
if (type instanceof Entity)
{
final String prefixProperty = UMLMetafacadeProperties.TABLE_NAME_PREFIX;
final String tableNamePrefix =
this.isConfiguredProperty(prefixProperty)
? ObjectUtils.toString(this.getConfiguredProperty(prefixProperty)) : null;
tableName =
EntityMetafacadeUtils.getSqlNameFromTaggedValue(
tableNamePrefix,
this,
UMLProfile.TAGGEDVALUE_PERSISTENCE_TABLE,
((Entity)type).getMaxSqlNameLength(),
this.getConfiguredProperty(UMLMetafacadeProperties.SQL_NAME_SEPARATOR));
}
}
}
return tableName;
}
/**
* @see org.andromda.metafacades.uml.EntityAssociation#getSchema()
*/
protected String handleGetSchema()
{
String schemaName = ObjectUtils.toString(this.findTaggedValue(UMLProfile.TAGGEDVALUE_PERSISTENCE_SCHEMA));
if (StringUtils.isBlank(schemaName))
{
schemaName = ObjectUtils.toString(this.getConfiguredProperty(UMLMetafacadeProperties.SCHEMA_NAME));
}
return schemaName;
}
/**
* It is an entity association if both ends are entities (have the entity
* stereotype
*/
protected boolean handleIsEntityAssociation()
{
// TODO: There may be a better implementation
// But it has to be tested (it may cause a stack overflow.
// return (getAssociationEndA().getType() instanceof Entity) &&
// (getAssociationEndB().getType() instanceof Entity);
if (this.metaObject == null || !(this.metaObject instanceof Association))
{
throw new MetafacadeImplsException("Incorrect metafacade mapping for " + this.toString());
}
boolean isEntityAssociation = true;
for (Iterator ends = ((Association)this.metaObject).getMemberEnds().iterator(); ends.hasNext();)
{
final Property prop = (Property)ends.next();
final Type propertyType = prop.getType();
if (propertyType == null || !UmlUtilities.containsStereotype(
propertyType,
UMLProfile.STEREOTYPE_ENTITY))
{
isEntityAssociation = false;
}
}
return isEntityAssociation;
}
}