package com.avaje.ebeaninternal.server.persist.dml;
import java.util.ArrayList;
import java.util.List;
import com.avaje.ebean.config.dbplatform.DatabasePlatform;
import com.avaje.ebean.config.dbplatform.DbEncrypt;
import com.avaje.ebeaninternal.server.deploy.BeanDescriptor;
import com.avaje.ebeaninternal.server.deploy.BeanPropertyAssocOne;
import com.avaje.ebeaninternal.server.persist.dmlbind.Bindable;
import com.avaje.ebeaninternal.server.persist.dmlbind.BindableId;
import com.avaje.ebeaninternal.server.persist.dmlbind.BindableList;
import com.avaje.ebeaninternal.server.persist.dmlbind.BindableUnidirectional;
import com.avaje.ebeaninternal.server.persist.dmlbind.FactoryAssocOnes;
import com.avaje.ebeaninternal.server.persist.dmlbind.FactoryBaseProperties;
import com.avaje.ebeaninternal.server.persist.dmlbind.FactoryEmbedded;
import com.avaje.ebeaninternal.server.persist.dmlbind.FactoryId;
import com.avaje.ebeaninternal.server.persist.dmlbind.FactoryVersion;
/**
* Factory for creating InsertMeta UpdateMeta and DeleteMeta.
*/
public class MetaFactory {
private final FactoryBaseProperties baseFact;
private final FactoryEmbedded embeddedFact;
private final FactoryVersion versionFact = new FactoryVersion();
private final FactoryAssocOnes assocOneFact = new FactoryAssocOnes();
private final FactoryId idFact = new FactoryId();
/**
* Include Lobs in the base statement. Generally true. Oracle9 used to require
* a separate statement for Clobs and Blobs.
*/
private static final boolean includeLobs = true;
private final DatabasePlatform dbPlatform;
private final boolean emptyStringAsNull;
public MetaFactory(DatabasePlatform dbPlatform) {
this.dbPlatform = dbPlatform;
this.emptyStringAsNull = dbPlatform.isTreatEmptyStringsAsNull();
// to bind encryption data before or after the encryption key
DbEncrypt dbEncrypt = dbPlatform.getDbEncrypt();
boolean bindEncryptDataFirst = dbEncrypt == null ? true : dbEncrypt.isBindEncryptDataFirst();
this.baseFact = new FactoryBaseProperties(bindEncryptDataFirst);
this.embeddedFact = new FactoryEmbedded(bindEncryptDataFirst);
}
/**
* Create the UpdateMeta for the given bean type.
*/
public UpdateMeta createUpdate(BeanDescriptor<?> desc) {
List<Bindable> setList = new ArrayList<Bindable>();
baseFact.create(setList, desc, DmlMode.UPDATE, includeLobs);
embeddedFact.create(setList, desc, DmlMode.UPDATE, includeLobs);
assocOneFact.create(setList, desc, DmlMode.UPDATE);
BindableId id = idFact.createId(desc);
Bindable ver = versionFact.create(desc);
BindableList setBindable = new BindableList(setList);
return new UpdateMeta(emptyStringAsNull, desc, setBindable, id, ver);
}
/**
* Create the DeleteMeta for the given bean type.
*/
public DeleteMeta createDelete(BeanDescriptor<?> desc) {
BindableId id = idFact.createId(desc);
Bindable ver = versionFact.create(desc);
return new DeleteMeta(emptyStringAsNull, desc, id, ver);
}
/**
* Create the InsertMeta for the given bean type.
*/
public InsertMeta createInsert(BeanDescriptor<?> desc) {
BindableId id = idFact.createId(desc);
List<Bindable> allList = new ArrayList<Bindable>();
baseFact.create(allList, desc, DmlMode.INSERT, includeLobs);
embeddedFact.create(allList, desc, DmlMode.INSERT, includeLobs);
assocOneFact.create(allList, desc, DmlMode.INSERT);
Bindable allBindable = new BindableList(allList);
BeanPropertyAssocOne<?> unidirectional = desc.getUnidirectional();
Bindable shadowFkey;
if (unidirectional == null) {
shadowFkey = null;
} else {
shadowFkey = new BindableUnidirectional(desc, unidirectional);
}
return new InsertMeta(dbPlatform, desc, shadowFkey, id, allBindable);
}
}