package liquibase.ext.spatial.sqlgenerator;
   
   import liquibase.database.Database;
   import liquibase.database.core.OracleDatabase;
   import liquibase.statement.core.UpdateStatement;
   
   /**
    * The <code>SpatialUpdateGeneratorOracle</code> generates the SQL for <code>UPDATE</code>ing
    * geometries in Oracle.
   */
  public class SpatialUpdateGeneratorOracle extends AbstractSpatialUpdateGenerator {
     /**
      * Verifies that the <code>UpdateStatement</code> has WKT or EWKT.
      */
     @Override
     public boolean supports(final UpdateStatement statement, final Database database) {
        return database instanceof OracleDatabase;
     }
  
     /**
      * Returns the name of the function that converts Well-Known Text to a database-specific
      * geometry.
      * 
      * @return the name of the function that converts WKT to a geometry.
      */
     @Override
     public String getGeomFromWktFunction() {
        return "SDO_GEOMETRY";
     }
  
     /**
      * Handles the Well-Known Text and SRID for Oracle.
      */
     @Override
     public String convertToFunction(final String wkt, final String srid, final Database database) {
        final String oracleWkt = OracleSpatialUtils.getOracleWkt(wkt);
        final String oracleSrid = OracleSpatialUtils.getOracleSrid(srid, database);
        return super.convertToFunction(oracleWkt, oracleSrid, database);
     }
  }