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com.caucho.amber.field.CompositeId Maven / Gradle / Ivy
/*
* Copyright (c) 1998-2018 Caucho Technology -- all rights reserved
*
* This file is part of Resin(R) Open Source
*
* Each copy or derived work must preserve the copyright notice and this
* notice unmodified.
*
* Resin Open Source is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Resin Open Source 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, or any warranty
* of NON-INFRINGEMENT. See the GNU General Public License for more
* details.
*
* You should have received a copy of the GNU General Public License
* along with Resin Open Source; if not, write to the
*
* Free Software Foundation, Inc.
* 59 Temple Place, Suite 330
* Boston, MA 02111-1307 USA
*
* @author Scott Ferguson
*/
package com.caucho.amber.field;
import com.caucho.amber.manager.AmberPersistenceUnit;
import com.caucho.amber.table.AmberColumn;
import com.caucho.amber.type.AmberBeanType;
import com.caucho.amber.type.EmbeddableType;
import com.caucho.amber.type.EntityType;
import com.caucho.amber.type.AmberType;
import com.caucho.java.JavaWriter;
import com.caucho.util.CharBuffer;
import com.caucho.util.L10N;
import java.io.IOException;
import java.lang.reflect.Method;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.logging.Logger;
/**
* Configuration for a bean's field
*/
public class CompositeId extends Id {
private static final L10N L = new L10N(CompositeId.class);
private static final Logger log
= Logger.getLogger(CompositeId.class.getName());
private Class _tKeyClass;
public CompositeId(EntityType ownerType,
ArrayList keys)
{
super(ownerType, keys);
}
protected CompositeId(EntityType ownerType)
{
super(ownerType);
}
/**
* Sets the foreign key type.
*/
public void setKeyClass(Class keyClass)
{
_tKeyClass = keyClass;
getOwnerType().addDependency(keyClass);
}
/**
* Returns the foreign type.
*/
@Override
public String getForeignTypeName()
{
if (_tKeyClass != null)
return _tKeyClass.getName();
else if (isEmbeddedId())
return getEmbeddedIdField().getJavaTypeName();
else
return getOwnerType().getName();
}
/**
* Returns the foreign type.
*/
public String getForeignMakeKeyName()
{
return getOwnerType().getName().replace('.', '_').replace('/', '_');
}
/**
* Generates any prologue.
*/
@Override
public void generatePrologue(JavaWriter out, HashSet completedSet)
throws IOException
{
super.generatePrologue(out, completedSet);
generatePrologue(out, completedSet, getForeignMakeKeyName());
}
/**
* Generates any prologue.
*/
@Override
public void generatePrologue(JavaWriter out,
HashSet completedSet,
String name)
throws IOException
{
// jpa/0u21
out.println();
out.println("private transient " + getForeignTypeName() + " __caucho_compound_key = new " + getForeignTypeName() + "();");
generatePrologueMake(out, completedSet);
generatePrologueLoad(out, completedSet);
}
/**
* Generates any prologue.
*/
public void generatePrologueMake(JavaWriter out,
HashSet completedSet)
throws IOException
{
String makeName = "__caucho_make_key_" + getForeignMakeKeyName();
if (completedSet.contains(makeName))
return;
completedSet.add(makeName);
out.println();
out.print("private static ");
out.print(getForeignTypeName() + " " + makeName);
out.print("(");
if (! isEmbeddedId()) {
ArrayList keys = getKeys();
for (int i = 0; i < keys.size(); i++) {
if (i != 0)
out.print(", ");
IdField key = keys.get(i);
out.print(key.getJavaTypeName() + " a" + i);
}
}
else {
EmbeddableType embeddable = (EmbeddableType) getEmbeddedIdField().getType();
ArrayList fields = embeddable.getFields();
for (int i = 0; i < fields.size(); i++) {
if (i != 0)
out.print(", ");
AmberField field = fields.get(i);
out.print(field.getJavaTypeName() + " a" + i);
}
}
out.println(")");
out.println("{");
out.pushDepth();
out.println();
out.println(getForeignTypeName() + " key = new " + getForeignTypeName() + "();");
if (getOwnerType().getPersistenceUnit().isJPA() && ! isEmbeddedId()) {
String args = "";
ArrayList keys = getKeys();
for (int i = 0; i < keys.size(); i++) {
KeyPropertyField key = (KeyPropertyField) keys.get(i);
String name = key.getName();
char ch = Character.toUpperCase(name.charAt(0));
if (name.length() == 1)
name = "get" + ch;
else
name = "get" + ch + key.getName().substring(1);
Method method = AmberBeanType.getGetter(_tKeyClass, name);
if (key.isKeyField() || (method != null)) {
out.println(key.generateSetKeyProperty("key", "a" + i) + ";");
}
else {
// Arg. constructor jpa/0u21
if (i != 0)
args += ", ";
args += " a" + i;
out.println("if (a" + i + " == null)");
out.println(" return new " + getForeignTypeName() + "();");
if (i + 1 == keys.size())
out.print("key = new " + getForeignTypeName() + "(" + args + ");");
}
}
}
else {
ArrayList fields;
if (getEmbeddedIdField() == null) {
// ejb/06x2
fields = getKeys();
}
else {
EmbeddableType embeddable
= (EmbeddableType) getEmbeddedIdField().getType();
fields = embeddable.getFields();
}
for (int i = 0; i < fields.size(); i++) {
AmberField field = (AmberField) fields.get(i);
if (getOwnerType().isFieldAccess())
out.println(field.generateSet("key", "a" + i) + ";");
else {
String setter = field.getName();
if (getOwnerType().getPersistenceUnit().isJPA()) {
setter = "set" + Character.toUpperCase(setter.charAt(0)) +
(setter.length() == 1 ? "" : setter.substring(1));
out.println("key." + setter + "(a" + i + ");");
}
else // XXX: ejb/06x2, ejb/06if
out.println("key." + setter + " = a" + i + ";");
}
}
}
out.println("return key;");
out.popDepth();
out.println("}");
}
/**
* Generates any prologue.
*/
public void generatePrologueLoad(JavaWriter out,
HashSet completedSet)
throws IOException
{
String loadName = "__caucho_load_key_" + getForeignMakeKeyName();
if (completedSet.contains(loadName))
return;
completedSet.add(loadName);
out.println();
out.print("private static ");
out.print(getForeignTypeName() + " " + loadName);
out.println("(com.caucho.amber.manager.AmberConnection aConn, java.sql.ResultSet rs, int index)");
out.println(" throws java.sql.SQLException");
out.println("{");
out.pushDepth();
int index = 0;
ArrayList keys = getKeys();
for (int i = 0; i < keys.size(); i++) {
IdField key = keys.get(i);
String javaType = key.getJavaTypeName();
out.print(javaType + " a" + i + " = (" + javaType + ") ");
index = key.getType().generateLoad(out, "rs", "index", index);
out.println(";");
out.println("if (rs.wasNull())");
out.println(" return null;");
}
out.print(getForeignTypeName() + " key = new " + getForeignTypeName() + "(");
if (isEmbeddedId() || ! getOwnerType().getPersistenceUnit().isJPA()) {
out.println(");");
// ejb/06x2
for (int i = 0; i < keys.size(); i++) {
out.println(keys.get(i).generateSetKeyProperty("key", "a" + i) + ";");
}
}
else {
for (int i = 0; i < keys.size(); i++) {
KeyPropertyField key = (KeyPropertyField) keys.get(i);
String name = key.getName();
char ch = Character.toUpperCase(name.charAt(0));
if (name.length() == 1)
name = "get" + ch;
else
name = "get" + ch + key.getName().substring(1);
Method method = AmberBeanType.getGetter(_tKeyClass, name);
if (key.isKeyField() || (method != null)) {
if (i == 0)
out.println(");");
out.println(key.generateSetKeyProperty("key", "a" + i) + ";");
}
else {
// Arg. constructor jpa/0u21
if (i != 0)
out.print(", ");
out.print(" a" + i);
if (i + 1 == keys.size())
out.println(");");
}
}
}
out.println("return key;");
out.popDepth();
out.println("}");
}
/**
* Returns the foreign type.
*/
@Override
public int generateLoadForeign(JavaWriter out, String rs,
String indexVar, int index)
throws IOException
{
return generateLoadForeign(out, rs, indexVar, index,
getForeignTypeName().replace('.', '_'));
}
/**
* Returns the foreign type.
*/
@Override
public int generateLoadForeign(JavaWriter out, String rs,
String indexVar, int index,
String name)
throws IOException
{
out.print("__caucho_load_key_" + getForeignMakeKeyName());
out.print("(aConn, " + rs + ", " + indexVar + " + " + index + ")");
ArrayList keys = getKeys();
index += keys.size();
return index;
}
/**
* Generates the select clause.
*/
@Override
public String generateSelect(String id)
{
ArrayList keys = getKeys();
CharBuffer cb = CharBuffer.allocate();
for (int i = 0; i < keys.size(); i++) {
if (i != 0)
cb.append(", ");
cb.append(keys.get(i).generateSelect(id));
}
return cb.close();
}
/**
* Generates the JPA QL select clause.
*/
@Override
public String generateJavaSelect(String id)
{
ArrayList keys = getKeys();
CharBuffer cb = CharBuffer.allocate();
for (int i = 0; i < keys.size(); i++) {
if (i != 0)
cb.append(", ");
cb.append(keys.get(i).generateJavaSelect(id));
}
return cb.close();
}
/**
* Generates the select clause.
*/
@Override
public String generateLoadSelect(String id)
{
return null;
}
/**
* Returns the key for the value
*/
@Override
public String generateGet(String value)
{
CharBuffer cb = CharBuffer.allocate();
cb.append("__caucho_make_key_" + getForeignMakeKeyName());
cb.append("(");
ArrayList keys = getKeys();
for (int i = 0; i < keys.size(); i++) {
if (i != 0)
cb.append(", ");
cb.append(keys.get(i).generateGet(value));
}
cb.append(")");
return cb.close();
}
/**
* Generates loading cache
*/
@Override
public void generateSet(JavaWriter out, String objThis, String value)
throws IOException
{
out.println("if (" + value + " != null) {");
out.pushDepth();
AmberPersistenceUnit persistenceUnit
= getOwnerType().getPersistenceUnit();
// ejb/06ie
if (persistenceUnit.isJPA() && ! isEmbeddedId()) {
// jpa/0u21
EmbeddableType embeddable
= persistenceUnit.getEmbeddable(_tKeyClass.getName());
// jpa/0u21 ArrayList keys = getKeys();
ArrayList keys = embeddable.getFields();
for (int i = 0; i < keys.size(); i++) {
PropertyField key = (PropertyField) keys.get(i);
String getter = "__caucho_get_field(" + i + ")";
String subValue
= "((com.caucho.amber.entity.Embeddable) key)." + getter;
out.println("Object field" + i + " = " + subValue + ";");
out.println("if (field" + i + " == null)");
out.println(" return;");
KeyPropertyField prop = null;
AmberColumn column = key.getColumn();
// jpa/0j55
if (true || column == null) {
ArrayList fields = getKeys();
for (int j = 0; j < fields.size(); j++) {
IdField id = fields.get(j);
if (id.getName().equals(key.getName()))
if (id instanceof KeyPropertyField)
prop = (KeyPropertyField) id;
}
}
if (prop != null)
key = prop;
AmberType columnType = key.getColumn().getType();
value = columnType.generateCastFromObject("field" + i);
key.generateSet(out, objThis, value);
}
// jpa/0u21
// out.println("__caucho_compound_key = (" + getForeignTypeName() + ") " + value + ";");
/*
for (int i = 0; i < keys.size(); i++) {
IdField key = keys.get(i);
key.generateStatementSet(out, key.generateGetKeyProperty(obj + "_key"));
}
*/
}
else {
out.println(getForeignTypeName() + " " + value + "_key = (" + getForeignTypeName() + ") " + value + ";");
if (getEmbeddedIdField() == null) {
// ejb/06ie
ArrayList keys = getKeys();
for (int i = 0; i < keys.size(); i++) {
IdField key = keys.get(i);
key.generateSet(out, objThis, key.generateGetKeyProperty(objThis + "_key"));
}
}
else
getEmbeddedIdField().generateSet(out, objThis, value + "_key");
}
out.popDepth();
out.println("}");
}
/**
* Returns the key for the value
*/
public String generateGetProxyProperty(String value)
{
CharBuffer cb = CharBuffer.allocate();
cb.append("__caucho_make_key_" + getForeignMakeKeyName());
cb.append("(");
ArrayList keys = getKeys();
for (int i = 0; i < keys.size(); i++) {
if (i != 0)
cb.append(", ");
cb.append(keys.get(i).generateGetProxyProperty(value));
}
cb.append(")");
return cb.close();
}
/**
* Generates loading cache
*/
@Override
public void generateLoadFromObject(JavaWriter out, String obj)
throws IOException
{
ArrayList keys = getKeys();
for (int i = 0; i < keys.size(); i++) {
keys.get(i).generateLoadFromObject(out, obj);
}
}
/**
* Generates loading cache
*/
@Override
public void generateUpdateFromObject(JavaWriter out, String obj)
throws IOException
{
ArrayList keys = getKeys();
for (int i = 0; i < keys.size(); i++) {
keys.get(i).generateUpdateFromObject(out, obj);
}
}
/**
* Generates the where clause.
*/
public String generateWhere(String id)
{
ArrayList keys = getKeys();
CharBuffer cb = CharBuffer.allocate();
for (int i = 0; i < keys.size(); i++) {
if (i != 0)
cb.append(" and ");
cb.append(keys.get(i).generateWhere(id));
}
return cb.close();
}
/**
* Generates the where clause.
*/
@Override
public String generateCreateTableSQL(AmberPersistenceUnit manager)
{
return null;
}
/**
* Generates the set clause.
*/
@Override
public void generateSetKey(JavaWriter out, String pstmt,
String obj, String index)
throws IOException
{
generateSet(out, pstmt, obj, index);
}
/**
* Generates code to convert to the type from the object.
*/
@Override
public String generateCastFromObject(String value)
{
return value;
}
/**
* Generates code for a match.
*/
@Override
public void generateMatch(JavaWriter out, String key)
throws IOException
{
out.println("return __caucho_getPrimaryKey().equals(" + key + ");");
}
/**
* Generates code to test the equals.
*/
@Override
public String generateEquals(String leftBase, String value)
{
return leftBase + ".equals(" + value + ")";
}
/**
* Generates the set clause.
*/
@Override
public void generateCheckCreateKey(JavaWriter out)
throws IOException
{
}
/**
* Generates the set clause.
*/
/*
public void generateSetGeneratedKeys(JavaWriter out, String pstmt)
throws IOException
{
}
*/
/**
* Generates code to convert to the object.
*/
@Override
public String toObject(String value)
{
return value;
}
}
