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com.avaje.ebean.config.dbplatform.H2Platform Maven / Gradle / Ivy
package com.avaje.ebean.config.dbplatform;
import com.avaje.ebean.BackgroundExecutor;
import com.avaje.ebean.config.ServerConfig;
import com.avaje.ebean.dbmigration.ddlgeneration.platform.H2Ddl;
import javax.sql.DataSource;
import java.util.Properties;
/**
* H2 specific platform.
*/
public class H2Platform extends DatabasePlatform {
public H2Platform() {
super();
this.name = "h2";
this.dbEncrypt = new H2DbEncrypt();
this.platformDdl = new H2Ddl(this);
this.historySupport = new H2HistorySupport();
this.nativeUuidType = true;
this.dbDefaultValue.setNow("now()");
this.dbIdentity.setIdType(IdType.IDENTITY);
this.dbIdentity.setSupportsGetGeneratedKeys(true);
this.dbIdentity.setSupportsSequence(true);
this.dbIdentity.setSupportsIdentity(true);
// like ? escape'' not working in the latest version H2 so just using no
// escape clause for now noting that backslash is an escape char for like in H2
this.likeClause = "like ?";
// H2 data types match default JDBC types
// so no changes to dbTypeMap required
}
@Override
public void configure(ServerConfig serverConfig) {
super.configure(serverConfig);
Properties properties = serverConfig.getProperties();
if (properties != null) {
String idType = properties.getProperty("ebean.h2.idtype");
if (idType != null) {
this.dbIdentity.setIdType(IdType.valueOf(idType));
}
}
}
/**
* Return a H2 specific sequence IdGenerator that supports batch fetching
* sequence values.
*/
@Override
public PlatformIdGenerator createSequenceIdGenerator(BackgroundExecutor be, DataSource ds,
String seqName, int batchSize) {
return new H2SequenceIdGenerator(be, ds, seqName, batchSize);
}
@Override
protected String withForUpdate(String sql) {
return sql + " for update";
}
}
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