Package org.hibernate.dialect

Source Code of org.hibernate.dialect.SybaseASE157Dialect

/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2011, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors.  All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program 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.  See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA  02110-1301  USA
*/
package org.hibernate.dialect;

import java.sql.SQLException;
import java.util.Map;

import org.hibernate.JDBCException;
import org.hibernate.LockOptions;
import org.hibernate.dialect.function.SQLFunctionTemplate;
import org.hibernate.exception.ConstraintViolationException;
import org.hibernate.exception.LockTimeoutException;
import org.hibernate.exception.spi.SQLExceptionConversionDelegate;
import org.hibernate.internal.util.JdbcExceptionHelper;
import org.hibernate.sql.ForUpdateFragment;
import org.hibernate.type.StandardBasicTypes;

/**
* An SQL dialect targeting Sybase Adaptive Server Enterprise (ASE) 15.7 and higher.
* <p/>
*
* @author Junyan Ren
*/
public class SybaseASE157Dialect extends SybaseASE15Dialect {

  /**
   * Constructs a SybaseASE157Dialect
   */
  public SybaseASE157Dialect() {
    super();

    registerFunction( "create_locator", new SQLFunctionTemplate( StandardBasicTypes.BINARY, "create_locator(?1, ?2)" ) );
    registerFunction( "locator_literal", new SQLFunctionTemplate( StandardBasicTypes.BINARY, "locator_literal(?1, ?2)" ) );
    registerFunction( "locator_valid", new SQLFunctionTemplate( StandardBasicTypes.BOOLEAN, "locator_valid(?1)" ) );
    registerFunction( "return_lob", new SQLFunctionTemplate( StandardBasicTypes.BINARY, "return_lob(?1, ?2)" ) );
    registerFunction( "setdata", new SQLFunctionTemplate( StandardBasicTypes.BOOLEAN, "setdata(?1, ?2, ?3)" ) );
    registerFunction( "charindex", new SQLFunctionTemplate( StandardBasicTypes.INTEGER, "charindex(?1, ?2, ?3)" ) );
  }

  @Override
  public String getTableTypeString() {
    //HHH-7298 I don't know if this would break something or cause some side affects
    //but it is required to use 'select for update'
    return " lock datarows";
  }

  @Override
  public boolean supportsExpectedLobUsagePattern() {
    return true;
  }

  @Override
  public boolean supportsLobValueChangePropogation() {
    return false;
  }

  @Override
  public boolean forUpdateOfColumns() {
    return true;
  }

  @Override
  public String getForUpdateString() {
    return " for update";
  }

  @Override
  public String getForUpdateString(String aliases) {
    return getForUpdateString() + " of " + aliases;
  }

  @Override
  public String appendLockHint(LockOptions mode, String tableName) {
    return tableName;
  }

  @Override
  public String applyLocksToSql(String sql, LockOptions aliasedLockOptions, Map<String, String[]> keyColumnNames) {
    return sql + new ForUpdateFragment( this, aliasedLockOptions, keyColumnNames ).toFragmentString();
  }

  @Override
  public SQLExceptionConversionDelegate buildSQLExceptionConversionDelegate() {
    return new SQLExceptionConversionDelegate() {
      @Override
      public JDBCException convert(SQLException sqlException, String message, String sql) {
        final String sqlState = JdbcExceptionHelper.extractSqlState( sqlException );
        final int errorCode = JdbcExceptionHelper.extractErrorCode( sqlException );
        if("JZ0TO".equals( sqlState ) || "JZ006".equals( sqlState )){
          throw new LockTimeoutException( message, sqlException, sql );
        }
        if ( 515 == errorCode && "ZZZZZ".equals( sqlState ) ) {
          // Attempt to insert NULL value into column; column does not allow nulls.
          final String constraintName = getViolatedConstraintNameExtracter().extractConstraintName( sqlException );
          return new ConstraintViolationException( message, sqlException, sql, constraintName );
        }
        return null;
      }
    };
  }
}
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