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package org.apache.cayenne.dba.sqlserver;
import org.apache.cayenne.access.DataNode;
import org.apache.cayenne.access.translator.select.QualifierTranslator;
import org.apache.cayenne.access.translator.select.QueryAssembler;
import org.apache.cayenne.access.translator.select.SelectTranslator;
import org.apache.cayenne.access.types.ExtendedType;
import org.apache.cayenne.access.types.ExtendedTypeFactory;
import org.apache.cayenne.access.types.ValueObjectTypeRegistry;
import org.apache.cayenne.configuration.Constants;
import org.apache.cayenne.configuration.RuntimeProperties;
import org.apache.cayenne.dba.sybase.SybaseAdapter;
import org.apache.cayenne.di.Inject;
import org.apache.cayenne.map.DbAttribute;
import org.apache.cayenne.map.EntityResolver;
import org.apache.cayenne.query.Query;
import org.apache.cayenne.query.SQLAction;
import org.apache.cayenne.query.SelectQuery;
import org.apache.cayenne.resource.ResourceLocator;
import java.util.List;
/**
* <p>
* Cayenne DbAdapter implementation for <a
* href="http://www.microsoft.com/sql/">Microsoft SQL Server </a> engine.
* </p>
* <h3>Microsoft Driver Settings</h3>
* <p>
* Sample connection settings to use with MS SQL Server are shown below:
*
* <pre>
* sqlserver.jdbc.username = test
* sqlserver.jdbc.password = secret
* sqlserver.jdbc.url = jdbc:sqlserver://192.168.0.65;databaseName=cayenne;SelectMethod=cursor
* sqlserver.jdbc.driver = com.microsoft.sqlserver.jdbc.SQLServerDriver
* </pre>
* <p>
* <i>Note on case-sensitive LIKE: if your application requires case-sensitive
* LIKE support, ask your DBA to configure the database to use a case-senstitive
* collation (one with "CS" in symbolic collation name instead of "CI", e.g.
* "SQL_Latin1_general_CP1_CS_AS"). </i>
* </p>
* <h3>jTDS Driver Settings</h3>
* <p>
* jTDS is an open source driver that can be downloaded from <a href=
* "http://jtds.sourceforge.net">http://jtds.sourceforge.net </a>. It supports
* both SQLServer and Sybase. Sample SQLServer settings are the following:
* </p>
*
* <pre>
* sqlserver.jdbc.username = test
* sqlserver.jdbc.password = secret
* sqlserver.jdbc.url = jdbc:jtds:sqlserver://192.168.0.65/cayenne
* sqlserver.jdbc.driver = net.sourceforge.jtds.jdbc.Driver
* </pre>
*
* @since 1.1
*/
public class SQLServerAdapter extends SybaseAdapter {
public static final String TRIM_FUNCTION = "RTRIM";
public SQLServerAdapter(@Inject RuntimeProperties runtimeProperties,
@Inject(Constants.SERVER_DEFAULT_TYPES_LIST) List<ExtendedType> defaultExtendedTypes,
@Inject(Constants.SERVER_USER_TYPES_LIST) List<ExtendedType> userExtendedTypes,
@Inject(Constants.SERVER_TYPE_FACTORIES_LIST) List<ExtendedTypeFactory> extendedTypeFactories,
@Inject(Constants.SERVER_RESOURCE_LOCATOR) ResourceLocator resourceLocator,
@Inject ValueObjectTypeRegistry valueObjectTypeRegistry) {
super(runtimeProperties, defaultExtendedTypes, userExtendedTypes, extendedTypeFactories, resourceLocator, valueObjectTypeRegistry);
// TODO: i wonder if Sybase supports generated keys...
// in this case we need to move this to the super.
this.setSupportsGeneratedKeys(true);
this.setSupportsBatchUpdates(true);
}
/**
* @since 4.0
*/
@Override
public SelectTranslator getSelectTranslator(SelectQuery<?> query, EntityResolver entityResolver) {
return new SQLServerSelectTranslator(query, this, entityResolver);
}
/**
* Uses SQLServerActionBuilder to create the right action.
*
* @since 1.2
*/
@Override
public SQLAction getAction(Query query, DataNode node) {
return query.createSQLAction(new SQLServerActionBuilder(node));
}
/**
* Returns a trimming translator.
*/
@Override
public QualifierTranslator getQualifierTranslator(QueryAssembler queryAssembler) {
QualifierTranslator translator = new SQLServerTrimmingQualifierTranslator(queryAssembler,
SQLServerAdapter.TRIM_FUNCTION);
translator.setCaseInsensitive(caseInsensitiveCollations);
return translator;
}
/**
* Overrides super implementation to correctly set up identity columns.
*
* @since 1.2
*/
@Override
public void createTableAppendColumn(StringBuffer sqlBuffer, DbAttribute column) {
super.createTableAppendColumn(sqlBuffer, column);
if (column.isGenerated()) {
// current limitation - we don't allow to set identity parameters...
sqlBuffer.append(" IDENTITY (1, 1)");
}
}
}