private void setEnvironment() {
envLocation = ConfigManager.getDbDir();
envConfig = new EnvironmentConfig();
envConfig.setAllowCreate(true);
envConfig.setLocking(false);
myDbEnvironment = new Environment(new File(envLocation), envConfig);
}
/* (non-Javadoc)
* @see edu.buffalo.cse562.Operator#readOneTuple()
*/
public ScanOperatorPlain(Table table) {
this.tableName = table.getName();
this.tableAlias = table.getAlias();
HashMap<String, ColumnDetail> intSchema = Main.tableMapping.get(this.tableName.toLowerCase());
this.indexMaps = Main.indexTypeMaps.get(this.tableName.toLowerCase());
if (intSchema == null) {
intSchema = Main.tableMapping.get(this.tableName.toUpperCase());
this.indexMaps = Main.indexTypeMaps.get(this.tableName.toUpperCase());
}
this.operatorTableSchema = this.initialiseOperatorTableSchema(intSchema);
this.dataFile =
FileSystems.getDefault()
.getPath(ConfigManager.getDataDir(), tableName.toLowerCase() + ".dat");
reset();
}