com.avaje.ebeaninternal.server.deploy.parse.AnnotationAssocOnes Maven / Gradle / Ivy
/**
* Copyright (C) 2006 Robin Bygrave
*
* This file is part of Ebean.
*
* Ebean is free software; you can redistribute it and/or modify it
* under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 2.1 of the License, or
* (at your option) any later version.
*
* Ebean is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Ebean; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
package com.avaje.ebeaninternal.server.deploy.parse;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import javax.persistence.AttributeOverride;
import javax.persistence.AttributeOverrides;
import javax.persistence.Column;
import javax.persistence.Embedded;
import javax.persistence.EmbeddedId;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.JoinColumns;
import javax.persistence.JoinTable;
import javax.persistence.ManyToOne;
import javax.persistence.OneToOne;
import com.avaje.ebean.annotation.EmbeddedColumns;
import com.avaje.ebean.annotation.Where;
import com.avaje.ebean.config.NamingConvention;
import com.avaje.ebean.validation.NotNull;
import com.avaje.ebeaninternal.server.deploy.BeanDescriptorManager;
import com.avaje.ebeaninternal.server.deploy.BeanTable;
import com.avaje.ebeaninternal.server.deploy.TableJoin;
import com.avaje.ebeaninternal.server.deploy.meta.DeployBeanProperty;
import com.avaje.ebeaninternal.server.deploy.meta.DeployBeanPropertyAssocOne;
import com.avaje.ebeaninternal.server.lib.util.StringHelper;
/**
* Read the deployment annotations for Associated One beans.
*/
public class AnnotationAssocOnes extends AnnotationParser {
private final BeanDescriptorManager factory;
/**
* Create with the deploy Info.
*/
public AnnotationAssocOnes(DeployBeanInfo info, BeanDescriptorManager factory) {
super(info);
this.factory = factory;
}
/**
* Parse the annotation.
*/
public void parse() {
Iterator it = descriptor.propertiesAll();
while (it.hasNext()) {
DeployBeanProperty prop = it.next();
if (prop instanceof DeployBeanPropertyAssocOne) {
readAssocOne((DeployBeanPropertyAssocOne) prop);
}
}
}
private void readAssocOne(DeployBeanPropertyAssocOne prop) {
ManyToOne manyToOne = get(prop, ManyToOne.class);
if (manyToOne != null) {
readManyToOne(manyToOne, prop);
}
OneToOne oneToOne = get(prop, OneToOne.class);
if (oneToOne != null) {
readOneToOne(oneToOne, prop);
}
Embedded embedded = get(prop, Embedded.class);
if (embedded != null) {
readEmbedded(embedded, prop);
}
EmbeddedId emId = get(prop, EmbeddedId.class);
if (emId != null) {
prop.setEmbedded(true);
prop.setId(true);
prop.setNullable(false);
}
Column column = get(prop, Column.class);
if (column != null && !isEmpty(column.name())) {
// have this in for AssocOnes used on
// Sql based beans...
prop.setDbColumn(column.name());
}
// May as well check for Id. Makes sense to me.
Id id = get(prop, Id.class);
if (id != null) {
prop.setEmbedded(true);
prop.setId(true);
prop.setNullable(false);
}
Where where = get(prop, Where.class);
if (where != null) {
// not expecting this to be used on assoc one properties
prop.setExtraWhere(where.clause());
}
NotNull notNull = get(prop, NotNull.class);
if (notNull != null) {
prop.setNullable(false);
// overrides optional attribute of ManyToOne etc
prop.getTableJoin().setType(TableJoin.JOIN);
}
// check for manually defined joins
BeanTable beanTable = prop.getBeanTable();
JoinColumn joinColumn = get(prop, JoinColumn.class);
if (joinColumn != null) {
prop.getTableJoin().addJoinColumn(false, joinColumn, beanTable);
if (!joinColumn.updatable()){
prop.setDbUpdateable(false);
}
}
JoinColumns joinColumns = get(prop, JoinColumns.class);
if (joinColumns != null) {
prop.getTableJoin().addJoinColumn(false, joinColumns.value(), beanTable);
}
JoinTable joinTable = get(prop, JoinTable.class);
if (joinTable != null) {
prop.getTableJoin().addJoinColumn(false, joinTable.joinColumns(), beanTable);
}
info.setBeanJoinType(prop, prop.isNullable());
if (!prop.getTableJoin().hasJoinColumns() && beanTable != null) {
if (prop.getMappedBy() != null) {
// the join is derived by reversing the join information
// from the mapped by property.
// Refer BeanDescriptorManager.readEntityRelationships()
} else {
// use naming convention to define join.
NamingConvention nc = factory.getNamingConvention();
String fkeyPrefix = null;
if (nc.isUseForeignKeyPrefix()){
fkeyPrefix = nc.getColumnFromProperty(beanType, prop.getName());
}
beanTable.createJoinColumn(fkeyPrefix, prop.getTableJoin(), true);
}
}
}
private String errorMsgMissingBeanTable(Class type, String from) {
return "Error with association to [" + type + "] from [" + from + "]. Is " + type + " registered?";
}
private void readManyToOne(ManyToOne propAnn, DeployBeanProperty prop) {
DeployBeanPropertyAssocOne beanProp = (DeployBeanPropertyAssocOne) prop;
setCascadeTypes(propAnn.cascade(), beanProp.getCascadeInfo());
BeanTable assoc = factory.getBeanTable(beanProp.getPropertyType());
if (assoc == null) {
String msg = errorMsgMissingBeanTable(beanProp.getPropertyType(), prop.getFullBeanName());
throw new RuntimeException(msg);
}
beanProp.setBeanTable(assoc);
beanProp.setDbInsertable(true);
beanProp.setDbUpdateable(true);
beanProp.setNullable(propAnn.optional());
beanProp.setFetchType(propAnn.fetch());
}
private void readOneToOne(OneToOne propAnn, DeployBeanPropertyAssocOne prop) {
prop.setOneToOne(true);
prop.setDbInsertable(true);
prop.setDbUpdateable(true);
prop.setNullable(propAnn.optional());
prop.setFetchType(propAnn.fetch());
prop.setMappedBy(propAnn.mappedBy());
if (!"".equals(propAnn.mappedBy())) {
prop.setOneToOneExported(true);
}
setCascadeTypes(propAnn.cascade(), prop.getCascadeInfo());
BeanTable assoc = factory.getBeanTable(prop.getPropertyType());
if (assoc == null) {
String msg = errorMsgMissingBeanTable(prop.getPropertyType(), prop.getFullBeanName());
throw new RuntimeException(msg);
}
prop.setBeanTable(assoc);
}
private void readEmbedded(Embedded propAnn, DeployBeanPropertyAssocOne prop) {
prop.setEmbedded(true);
prop.setDbInsertable(true);
prop.setDbUpdateable(true);
EmbeddedColumns columns = get(prop, EmbeddedColumns.class);
if (columns != null) {
// convert into a Map
String propColumns = columns.columns();
Map propMap = StringHelper.delimitedToMap(propColumns, ",", "=");
prop.getDeployEmbedded().putAll(propMap);
}
AttributeOverrides attrOverrides = get(prop, AttributeOverrides.class);
if (attrOverrides != null) {
HashMap propMap = new HashMap();
AttributeOverride[] aoArray = attrOverrides.value();
for (int i = 0; i < aoArray.length; i++) {
String propName = aoArray[i].name();
String columnName = aoArray[i].column().name();
propMap.put(propName, columnName);
}
prop.getDeployEmbedded().putAll(propMap);
}
}
}
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