/*
* Copyright (c) 1998-2010 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.table.LinkColumns;
import com.caucho.amber.type.EntityType;
import com.caucho.java.JavaWriter;
import com.caucho.util.CharBuffer;
import com.caucho.util.L10N;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashSet;
import java.util.logging.Logger;
/**
* Configuration for a bean's field
*/
public class SubId extends Id {
private static final L10N L = new L10N(SubId.class);
private static final Logger log
= Logger.getLogger(SubId.class.getName());
private Id _parentId;
private LinkColumns _link;
public SubId(EntityType ownerType, EntityType rootType)
{
super(ownerType, new ArrayList<IdField>());
_parentId = rootType.getId();
}
/**
* Returns the parent keys.
*/
public ArrayList<IdField> getParentKeys()
{
return _parentId.getKeys();
}
/**
* Returns the keys.
*/
public ArrayList<IdField> getKeys()
{
return _parentId.getKeys();
}
/**
* Returns the foreign type.
*/
public String getForeignTypeName()
{
return _parentId.getForeignTypeName();
}
/**
* Generates any prologue.
*/
public void generatePrologue(JavaWriter out, HashSet<Object> completedSet)
throws IOException
{
}
/**
* Returns the foreign type.
*/
public int generateLoadForeign(JavaWriter out, String rs,
String indexVar, int index)
throws IOException
{
return _parentId.generateLoadForeign(out, rs, indexVar, index);
}
/**
* Returns the foreign type.
*/
public int generateLoadForeign(JavaWriter out, String rs,
String indexVar, int index,
String name)
throws IOException
{
return _parentId.generateLoadForeign(out, rs, indexVar, index, name);
}
/**
* Generates the select clause.
*/
public String generateSelect(String id)
{
ArrayList<IdField> keys = getParentKeys();
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 select clause.
*/
@Override
public String generateLoadSelect(String id)
{
return null;
}
/**
* Returns the key for the value
*/
@Override
public String generateGet(String value)
{
return _parentId.generateGet(value);
}
/**
* Generates loading cache
*/
@Override
public void generateLoadFromObject(JavaWriter out, String obj)
throws IOException
{
_parentId.generateLoadFromObject(out, obj);
}
/**
* Generates loading cache
*/
@Override
public void generateSet(JavaWriter out, String objThis, String value)
throws IOException
{
_parentId.generateSet(out, objThis, value);
}
/**
* Generates loading cache
*/
@Override
public void generateUpdateFromObject(JavaWriter out, String obj)
throws IOException
{
_parentId.generateUpdateFromObject(out, obj);
}
/**
* Generates the where clause.
*/
@Override
public String generateMatchArgWhere(String id)
{
ArrayList<IdField> keys = getParentKeys();
CharBuffer cb = CharBuffer.allocate();
for (int i = 0; i < keys.size(); i++) {
if (i != 0)
cb.append(" and ");
generateMatchArgWhere(cb, keys.get(i), id);
}
return cb.close();
}
/**
* Generates the where clause.
*/
private void generateMatchArgWhere(CharBuffer cb, IdField parentId, String id)
{
LinkColumns link = getOwnerType().getTable().getDependentIdLink();
ArrayList<AmberColumn> columns = parentId.getColumns();
for (int i = 0; i < columns.size(); i++) {
AmberColumn column = columns.get(i);
if (i != 0)
cb.append(" and ");
cb.append(id);
cb.append('.');
cb.append(link.getSourceColumn(column).getName());
cb.append("=?");
}
}
/**
* Generates the where clause.
*/
public String generateCreateTableSQL(AmberPersistenceUnit manager)
{
return null;
}
/**
* Generates the set clause.
*/
public void generateSetKey(JavaWriter out, String pstmt,
String obj, String index)
throws IOException
{
_parentId.generateSetKey(out, pstmt, obj, index);
}
/**
* Generates the set clause.
*/
@Override
public void generateSet(JavaWriter out, String pstmt,
String obj, String index)
throws IOException
{
_parentId.generateSet(out, pstmt, obj, index);
}
/**
* Generates the set clause.
*/
@Override
public void generateStatementSet(JavaWriter out, String pstmt, String index)
throws IOException
{
_parentId.generateStatementSet(out, pstmt, index);
}
/**
* Generates the set clause.
*/
@Override
public void generateSetInsert(JavaWriter out, String pstmt, String index)
throws IOException
{
_parentId.generateSetInsert(out, pstmt, 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
{
// jpa/0l30
out.println("return " + generateEquals("__caucho_getPrimaryKey()", 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 code to convert to the object.
*/
@Override
public String toObject(String value)
{
return value;
}
}