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/*******************************************************************************
* Copyright (c) 2007, 2010 Oracle. 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:
* Oracle - initial API and implementation
******************************************************************************/
package org.eclipse.jpt.core.internal.jpa1.context.orm;
import java.util.Iterator;
import java.util.List;
import org.eclipse.jpt.core.MappingKeys;
import org.eclipse.jpt.core.context.AttributeMapping;
import org.eclipse.jpt.core.context.AttributeOverride;
import org.eclipse.jpt.core.context.BaseColumn;
import org.eclipse.jpt.core.context.Column;
import org.eclipse.jpt.core.context.NamedColumn;
import org.eclipse.jpt.core.context.TypeMapping;
import org.eclipse.jpt.core.context.orm.OrmAttributeOverride;
import org.eclipse.jpt.core.context.orm.OrmAttributeOverrideContainer;
import org.eclipse.jpt.core.context.orm.OrmColumn;
import org.eclipse.jpt.core.internal.context.BaseColumnTextRangeResolver;
import org.eclipse.jpt.core.internal.context.JptValidator;
import org.eclipse.jpt.core.internal.context.NamedColumnTextRangeResolver;
import org.eclipse.jpt.core.internal.validation.DefaultJpaValidationMessages;
import org.eclipse.jpt.core.internal.validation.JpaValidationMessages;
import org.eclipse.jpt.core.jpa2.context.AttributeOverride2_0;
import org.eclipse.jpt.core.jpa2.context.SingleRelationshipMapping2_0;
import org.eclipse.jpt.core.resource.orm.OrmFactory;
import org.eclipse.jpt.core.resource.orm.XmlAttributeOverride;
import org.eclipse.jpt.core.resource.orm.XmlColumn;
import org.eclipse.jpt.db.Table;
import org.eclipse.jpt.utility.internal.iterables.CompositeIterable;
import org.eclipse.jpt.utility.internal.iterables.FilteringIterable;
import org.eclipse.jpt.utility.internal.iterables.SubIterableWrapper;
import org.eclipse.wst.validation.internal.provisional.core.IMessage;
import org.eclipse.wst.validation.internal.provisional.core.IReporter;
public class GenericOrmAttributeOverride
extends AbstractOrmOverride
implements AttributeOverride2_0, OrmAttributeOverride, OrmColumn.Owner
{
protected final OrmColumn column;
/* 2.0 feature - a relationship may map this attribute override */
protected boolean mappedByRelationship;
public GenericOrmAttributeOverride(
OrmAttributeOverrideContainer parent,
AttributeOverride.Owner owner,
XmlAttributeOverride resourceAttributeOverride) {
super(parent, owner, resourceAttributeOverride);
this.column = getXmlContextNodeFactory().buildOrmColumn(this, this);
this.column.initialize(resourceAttributeOverride.getColumn());
this.mappedByRelationship = //calculateMappedByRelationship();
// TODO - move this real calculation to a (currently nonexistent) initialize method
false;
}
public OrmAttributeOverride setVirtual(boolean virtual) {
return (OrmAttributeOverride) getOwner().setVirtual(virtual, this);
}
@Override
public Owner getOwner() {
return (Owner) super.getOwner();
}
@Override
protected XmlAttributeOverride getResourceOverride() {
return (XmlAttributeOverride) super.getResourceOverride();
}
// ********************* column ****************
public OrmColumn getColumn() {
return this.column;
}
//************* NamedColumn.Owner implementation **************
public TypeMapping getTypeMapping() {
return getOwner().getTypeMapping();
}
public Table getDbTable(String tableName) {
return this.getOwner().getDbTable(tableName);
}
public String getDefaultColumnName() {
Column column = resolveOverriddenColumn();
if (column == null) {
return getName();
}
return column.getName();
}
//************* BaseColumn.Owner implementation **************
public String getDefaultTableName() {
Column column = resolveOverriddenColumn();
if (column != null) {
String tableName = column.getSpecifiedTable();
if (tableName != null) {
return tableName;
}
}
return getOwner().getDefaultTableName();
}
protected Column resolveOverriddenColumn() {
return isVirtual() ? getOwner().resolveOverriddenColumn(getName()) : null;
}
public boolean tableNameIsInvalid(String tableName) {
return getOwner().tableNameIsInvalid(tableName);
}
public Iterator<String> candidateTableNames() {
return getOwner().candidateTableNames();
}
public boolean isVirtual() {
return getOwner().isVirtual(this);
}
//***************** OrmColumn.Owner implementation ****************
public XmlColumn getResourceColumn() {
return this.getResourceOverride().getColumn();
}
protected boolean isColumnSpecified() {
return getResourceColumn() != null;
}
public void addResourceColumn() {
this.getResourceOverride().setColumn(OrmFactory.eINSTANCE.createXmlColumn());
}
public void removeResourceColumn() {
this.getResourceOverride().setColumn(null);
}
// **************** AttributeOverride2_0 impl *****************************
public boolean isMappedByRelationship() {
return this.mappedByRelationship;
}
protected void setMappedByRelationship(boolean newValue) {
boolean oldValue = this.mappedByRelationship;
this.mappedByRelationship = newValue;
firePropertyChanged(MAPPED_BY_RELATIONSHIP_PROPERTY, oldValue, newValue);
}
protected boolean calculateMappedByRelationship() {
for (SingleRelationshipMapping2_0 each : getMapsIdRelationships()) {
if (getName() == null) {
return false;
}
// overrideable names are (usually?) qualified with a container mapping,
// which may also be the one mapped by a relationship
String qualifier =
(getName().indexOf('.') > 0) ?
getName().substring(0, getName().indexOf('.'))
: getName();
return qualifier.equals(each.getDerivedIdentity().getMapsIdDerivedIdentityStrategy().getValue());
}
return false;
}
protected Iterable<SingleRelationshipMapping2_0> getMapsIdRelationships() {
return new FilteringIterable<SingleRelationshipMapping2_0>(
new SubIterableWrapper<AttributeMapping, SingleRelationshipMapping2_0>(
new CompositeIterable<AttributeMapping>(
getTypeMapping().getAllAttributeMappings(MappingKeys.ONE_TO_ONE_ATTRIBUTE_MAPPING_KEY),
getTypeMapping().getAllAttributeMappings(MappingKeys.MANY_TO_ONE_ATTRIBUTE_MAPPING_KEY)))) {
@Override
protected boolean accept(SingleRelationshipMapping2_0 o) {
return o.getDerivedIdentity().usesMapsIdDerivedIdentityStrategy();
}
};
}
// **************** resource -> context ***********************************
public void update(XmlAttributeOverride xmlAttributeOverride) {
super.update(xmlAttributeOverride);
this.column.update(xmlAttributeOverride.getColumn());
setMappedByRelationship(calculateMappedByRelationship());
}
//****************** validation ********************
@Override
public void validate(List<IMessage> messages, IReporter reporter) {
super.validate(messages, reporter);
// [JPA 2.0] if the column is specified, or if the override is not mapped by a relationship,
// then the column is validated.
// (In JPA 1.0, the column will always be validated, since the override is never mapped by a
// relationship)
if (isColumnSpecified() || ! isMappedByRelationship()) {
getColumn().validate(messages, reporter);
}
// [JPA 2.0] if the override is mapped by a relationship, then that actually is in itself
// a validation error
// (We prevent implied overrides that are mapped by a relationship ... hopefully)
// (In JPA 1.0, this will never occur)
if (isMappedByRelationship()) {
messages.add(
DefaultJpaValidationMessages.buildMessage(
IMessage.HIGH_SEVERITY,
JpaValidationMessages.ATTRIBUTE_OVERRIDE_MAPPED_BY_RELATIONSHIP_AND_SPECIFIED,
new String[] {},
this,
getValidationTextRange()));
}
}
public JptValidator buildColumnValidator(NamedColumn column, NamedColumnTextRangeResolver textRangeResolver) {
return getOwner().buildColumnValidator(this, (BaseColumn) column, this, (BaseColumnTextRangeResolver) textRangeResolver);
}
}
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