io.ebean.config.dbplatform.h2.H2Platform Maven / Gradle / Ivy

Go to download

Show more of this group Show more artifacts with this name
Show all versions of ebean Show documentation

composite of common runtime dependencies for all platforms

There is a newer version: 15.8.1

package io.ebean.config.dbplatform.h2;

import io.ebean.BackgroundExecutor;
import io.ebean.Query;
import io.ebean.annotation.Platform;
import io.ebean.config.dbplatform.DatabasePlatform;
import io.ebean.config.dbplatform.DbPlatformType;
import io.ebean.config.dbplatform.DbType;
import io.ebean.config.dbplatform.IdType;
import io.ebean.config.dbplatform.PlatformIdGenerator;
import io.ebean.config.dbplatform.SqlErrorCodes;

import javax.sql.DataSource;

/**
 * H2 specific platform.
 */
public class H2Platform extends DatabasePlatform {

  public H2Platform() {
    super();
    this.platform = Platform.H2;
    this.dbEncrypt = new H2DbEncrypt();
    this.historySupport = new H2HistorySupport();
    this.nativeUuidType = true;
    this.dbDefaultValue.setNow("now()");
    this.columnAliasPrefix = null;

    this.exceptionTranslator =
      new SqlErrorCodes()
        .addAcquireLock("50200","HYT00")
        .addDuplicateKey("23001","23505")
        .addDataIntegrity("22001","22003","22012","22018","22025","23000","23002","23003","23502","23503","23506","23507","23513")
        .build();

    this.dbIdentity.setIdType(IdType.IDENTITY);
    this.dbIdentity.setSupportsGetGeneratedKeys(true);
    this.dbIdentity.setSupportsSequence(true);
    this.dbIdentity.setSupportsIdentity(true);

    dbTypeMap.put(DbType.UUID, new DbPlatformType("uuid", false));
  }

  /**
   * Return a H2 specific sequence IdGenerator that supports batch fetching
   * sequence values.
   */
  @Override
  public PlatformIdGenerator createSequenceIdGenerator(BackgroundExecutor be, DataSource ds, int stepSize, String seqName) {
    return new H2SequenceIdGenerator(be, ds, seqName, sequenceBatchSize);
  }

  @Override
  protected String withForUpdate(String sql, Query.ForUpdate forUpdateMode) {
    // NOWAIT and SKIP LOCKED currently not supported with H2
    return sql + " for update";
  }
}