* Treiber, Host, User und Passwort, ueber den der Zugriff auf die
* Datenbank erfolgt.
*
- * @version $Id: Database.java,v 1.44.2.20 2003/11/28 17:21:50 rk Exp $
+ * @version $Id: Database.java,v 1.44.2.21 2004/01/18 17:30:57 zapata Exp $
* @author rk
*
*/
public class Database implements StorageObject {
private static Class GENERIC_ENTITY_CLASS = mir.entity.StorableObjectEntity.class;
- private static Class STORABLE_OBJECT_ENTITY_CLASS = mir.entity.StorableObjectEntity.class;
-
-
- private static Map POPUP_EMPTYLINE = new HashMap();
protected static final ObjectStore o_store = ObjectStore.getInstance();
private static final int _millisPerHour = 60 * 60 * 1000;
- private static final int _millisPerMinute = 60 * 1000;
-
- static {
- // always same object saves a little space
- POPUP_EMPTYLINE.put("key", "");
- POPUP_EMPTYLINE.put("value", "--");
- }
protected LoggerWrapper logger;
protected MirPropertiesConfiguration configuration;
- protected String theTable;
- protected String theCoreTable = null;
- protected String thePKeyName = "id";
- protected int thePKeyType;
- protected int thePKeyIndex;
+ protected String mainTable;
+ protected String primaryKeySequence = null;
+ protected String primaryKeyField = "id";
+
protected boolean evaluatedMetaData = false;
protected ArrayList metadataFields;
protected ArrayList metadataLabels;
protected ArrayList metadataNotNullFields;
protected int[] metadataTypes;
protected Class theEntityClass;
- protected List popupCache = null;
- protected boolean hasPopupCache = false;
- protected Map hashCache = null;
protected boolean hasTimestamp = true;
- private String database_driver;
- private String database_url;
private int defaultLimit;
TimeZone timezone;
SimpleDateFormat internalDateFormat;
SimpleDateFormat userInputDateFormat;
-/*
- private SimpleDateFormat _dateFormatterOut;
- private SimpleDateFormat _dateFormatterIn;
- _dateFormatterOut = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
- _dateFormatterIn = new SimpleDateFormat("yyyy-MM-dd HH:mm");
-*/
/**
* Kontruktor bekommt den Filenamen des Konfigurationsfiles ?bergeben.
* <code>Database.Host</code> und <code>Database.Adaptor</code>
* ausgelesen und ein Broker f?r die Verbindugen zur Datenbank
* erzeugt.
- *
- * @param String confFilename Dateiname der Konfigurationsdatei
*/
public Database() throws StorageObjectFailure {
try {
userInputDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm");
userInputDateFormat.setTimeZone(timezone);
-
String theAdaptorName = configuration.getString("Database.Adaptor");
defaultLimit = Integer.parseInt(configuration.getString("Database.Limit"));
* @return Name des Primary-Keys
*/
public String getIdName() {
- return thePKeyName;
+ return primaryKeyField;
}
/**
* @return Name der Tabelle
*/
public String getTableName() {
- return theTable;
+ return mainTable;
}
- /*
- * Dient dazu vererbte Tabellen bei objectrelationalen DBMS
- * zu speichern, wenn die id einer Tabelle in der parenttabelle verwaltet
- * wird.
- * @return liefert theCoreTabel als String zurueck, wenn gesetzt, sonst
- * the Table
+ /**
+ * Returns the id that was most recently added to the database
*/
- public String getCoreTable() {
- if (theCoreTable != null) {
- return theCoreTable;
- }
- else {
- return theTable;
- }
+ private String getLatestInsertedId(Connection aConnection) throws SQLException {
+ if (primaryKeySequence==null)
+ primaryKeySequence = mainTable+"_id_seq";
+
+ PreparedStatement statement = aConnection.prepareStatement("select currval('" + primaryKeySequence + "')");
+
+ ResultSet rs = statement.executeQuery();
+ rs.next();
+ return rs.getString(1);
}
/**
* Liefert Feldtypen der Felder der Tabelle zurueck (s.a. java.sql.Types)
* @return int-Array mit den Typen der Felder
- * @exception StorageObjectException
+ * @exception StorageObjectFailure
*/
public int[] getTypes() throws StorageObjectFailure {
if (metadataTypes == null) {
/**
* Liefert eine Liste der Labels der Tabellenfelder
- * @return ArrayListe mit Labeln
- * @exception StorageObjectException
*/
public List getLabels() throws StorageObjectFailure {
if (metadataLabels == null) {
/**
* Liefert eine Liste der Felder der Tabelle
* @return ArrayList mit Feldern
- * @exception StorageObjectException
*/
public List getFields() throws StorageObjectFailure {
if (metadataFields == null) {
* Gets value out of ResultSet according to type and converts to String
* @param rs ResultSet.
* @param aType a type from java.sql.Types.*
- * @param index index in ResultSet
+ * @param valueIndex index in ResultSet
* @return returns the value as String. If no conversion is possible
* /unsupported value/ is returned
*/
case java.sql.Types.NUMERIC:
- /** @todo Numeric can be float or double depending upon
+ /** todo Numeric can be float or double depending upon
* metadata.getScale() / especially with oracle */
long outl = rs.getLong(valueIndex);
String uniqueId = id;
if (theEntityClass.equals(StorableObjectEntity.class)) {
- uniqueId += ("@" + theTable);
+ uniqueId += ("@" + mainTable);
}
StoreIdentifier search_sid = new StoreIdentifier(theEntityClass, uniqueId);
try {
ResultSet rs;
- /** @todo better prepared statement */
+ /** todo better prepared statement */
String selectSql =
- "select * from " + theTable + " where " + thePKeyName + "=" + id;
+ "select * from " + mainTable + " where " + primaryKeyField + "=" + id;
stmt = con.createStatement();
rs = executeSql(stmt, selectSql);
returnEntity = makeEntityFromResultSet(rs);
}
else {
- logger.warn("No data for id: " + id + " in table " + theTable);
+ logger.warn("No data for id: " + id + " in table " + mainTable);
}
rs.close();
}
else {
- logger.warn("No Data for Id " + id + " in Table " + theTable);
+ logger.warn("No Data for Id " + id + " in Table " + mainTable);
}
}
catch (SQLException sqe) {
/**
* This method makes it possible to make selects across multiple tables
- *
+ *
* @param mainTablePrefix prefix for the mainTable
* @param extraTables a vector of tables for relational select
* @param aWhereClause whereClause
* @throws StorageObjectFailure
*/
- public EntityList selectByWhereClauseWithExtraTables(String mainTablePrefix,
+ public EntityList selectByWhereClauseWithExtraTables(String mainTablePrefix,
List extraTables, String aWhereClause )
throws StorageObjectFailure {
return selectByWhereClause( mainTablePrefix, extraTables, aWhereClause, "", 0, defaultLimit);
/**
* select-Operator um Datensaetze zu bekommen, die key = value erfuellen.
- * @param key Datenbankfeld der Bedingung.
- * @param value Wert die der key anehmen muss.
+ * @param aField Datenbankfeld der Bedingung.
+ * @param aValue Wert die der key anehmen muss.
* @return EntityList mit den gematchten Entities
*/
public EntityList selectByFieldValue(String aField, String aValue) throws StorageObjectFailure {
/**
* select-Operator um Datensaetze zu bekommen, die key = value erfuellen.
- * @param key Datenbankfeld der Bedingung.
- * @param value Wert die der key anehmen muss.
+ * @param aField Datenbankfeld der Bedingung.
+ * @param aValue Wert die der key anehmen muss.
* @param offset Gibt an ab welchem Datensatz angezeigt werden soll.
* @return EntityList mit den gematchten Entities
*/
* select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
* Also offset wird der erste Datensatz genommen.
*
- * @param wc where-Clause
+ * @param where where-Clause
* @return EntityList mit den gematchten Entities
- * @exception StorageObjectException
+ * @exception StorageObjectFailure
*/
public EntityList selectByWhereClause(String where) throws StorageObjectFailure {
return selectByWhereClause(where, 0);
* select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
* Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
*
- * @param wc where-Clause
+ * @param whereClause where-Clause
* @param offset ab welchem Datensatz.
* @return EntityList mit den gematchten Entities
- * @exception StorageObjectException
+ * @exception StorageObjectFailure
*/
public EntityList selectByWhereClause(String whereClause, int offset) throws StorageObjectFailure {
return selectByWhereClause(whereClause, null, offset);
* Also offset wird der erste Datensatz genommen.
* Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
*
- * @param wc where-Clause
- * @param ob orderBy-Clause
+ * @param where where-Clause
+ * @param order orderBy-Clause
* @return EntityList mit den gematchten Entities
- * @exception StorageObjectException
+ * @exception StorageObjectFailure
*/
public EntityList selectByWhereClause(String where, String order) throws StorageObjectFailure {
return selectByWhereClause(where, order, 0);
* select-Operator liefert eine EntityListe mit den gematchten Datens?tzen zur?ck.
* Als maximale Anzahl wird das Limit auf der Konfiguration genommen.
*
- * @param wc where-Clause
- * @param ob orderBy-Clause
+ * @param whereClause where-Clause
+ * @param orderBy orderBy-Clause
* @param offset ab welchem Datensatz
* @return EntityList mit den gematchten Entities
- * @exception StorageObjectException
+ * @exception StorageObjectFailure
*/
public EntityList selectByWhereClause(String whereClause, String orderBy, int offset) throws StorageObjectFailure {
return selectByWhereClause(whereClause, orderBy, offset, defaultLimit);
* @param offset ab welchem Datensatz
* @param limit wieviele Datens?tze
* @return EntityList mit den gematchten Entities
- * @exception StorageObjectException
+ * @exception StorageObjectFailure
*/
public EntityList selectByWhereClause(String aWhereClause, String anOrderByClause,
int offset, int limit) throws StorageObjectFailure {
- return selectByWhereClause("", null, aWhereClause, anOrderByClause, offset, limit);
+ return selectByWhereClause("", null, aWhereClause, anOrderByClause, offset, limit);
}
* @param offset ab welchem Datensatz
* @param limit wieviele Datens?tze
* @return EntityList mit den gematchten Entities
- * @exception StorageObjectException
+ * @exception StorageObjectFailure
*/
public EntityList selectByWhereClause(String mainTablePrefix, List extraTables,
String aWhereClause, String anOrderByClause,
int offset, int limit) throws StorageObjectFailure {
-
+
// TODO get rid of emtpy Strings in extraTables
// make extraTables null, if single empty String in it
- // cause StringUtil.splitString puts in emptyString
+ // cause StringUtil.splitString puts in emptyString
if (extraTables != null && ((String)extraTables.get(0)).trim().equals(""))
{
logger.debug("+++ made extraTables to null!");
extraTables=null;
}
-
- String useTable = theTable;
+
+ String useTable = mainTable;
String selectStar = "*";
if (mainTablePrefix!=null && mainTablePrefix.trim().length()>0) {
useTable+=" "+mainTablePrefix;
selectStar=mainTablePrefix.trim() + ".*";
}
-
+
// check o_store for entitylist
// only if no relational select
if (extraTables==null) {
if (StoreUtil.extendsStorableEntity(theEntityClass)) {
StoreIdentifier searchSid = new StoreIdentifier(theEntityClass,
StoreContainerType.STOC_TYPE_ENTITYLIST,
- StoreUtil.getEntityListUniqueIdentifierFor(theTable,
+ StoreUtil.getEntityListUniqueIdentifierFor(mainTable,
aWhereClause, anOrderByClause, offset, limit));
EntityList hit = (EntityList) o_store.use(searchSid);
new StringBuffer("select count(*) from ").append(useTable);
StringBuffer selectSql =
new StringBuffer("select "+selectStar+" from ").append(useTable);
-
+
// append extratables, if necessary
if (extraTables!=null) {
for (int i=0;i < extraTables.size();i++) {
- if (!extraTables.get(i).equals("")) {
+ if (!extraTables.get(i).equals("")) {
countSql.append( ", " + extraTables.get(i));
selectSql.append( ", " + extraTables.get(i));
}
}
}
-
+
if (aWhereClause != null) {
selectSql.append(" where ").append(aWhereClause);
countSql.append(" where ").append(aWhereClause);
Entity returnEntity = null;
try {
- // ask object store for object @ thePKeyIndex
if (StoreUtil.extendsStorableEntity(theEntityClass)) {
StoreIdentifier searchSid = StorableObjectEntity.getStoreIdentifier(this,
theEntityClass, rs);
returnEntity.setValues(theResultHash);
if (returnEntity instanceof StorableObject) {
- logger.debug("CACHE: ( in) " + returnEntity.getId() + " :" + theTable);
+ logger.debug("CACHE: ( in) " + returnEntity.getId() + " :" + mainTable);
o_store.add(((StorableObject) returnEntity).getStoreIdentifier());
}
} else {
PreparedStatement pstmt = null;
try {
- List streamedInput = theEntity.streamedInput();
StringBuffer f = new StringBuffer();
StringBuffer v = new StringBuffer();
String aField;
for (int i = 0; i < getFields().size(); i++) {
aField = (String) getFields().get(i);
- if (!aField.equals(thePKeyName)) {
+ if (!aField.equals(primaryKeyField)) {
aValue = null;
// exceptions
- if (!theEntity.hasValueForField(aField) && (
+ if (!theEntity.hasFieldValue(aField) && (
aField.equals("webdb_create") ||
aField.equals("webdb_lastchange"))) {
aValue = "NOW()";
}
else {
- if ((streamedInput != null) && streamedInput.contains(aField)) {
- aValue = "?";
- }
- else {
- if (theEntity.hasValueForField(aField)) {
+ if (theEntity.hasFieldValue(aField)) {
aValue =
"'" +
- JDBCStringRoutines.escapeStringLiteral((String) theEntity.getValue(aField)) + "'";
+ JDBCStringRoutines.escapeStringLiteral(theEntity.getFieldValue(aField)) + "'";
}
- }
}
// wenn Wert gegeben, dann einbauen
// insert into db
StringBuffer sqlBuf =
- new StringBuffer("insert into ").append(theTable).append("(").append(f)
+ new StringBuffer("insert into ").append(mainTable).append("(").append(f)
.append(") values (").append(v).append(")");
String sql = sqlBuf.toString();
con.setAutoCommit(false);
pstmt = con.prepareStatement(sql);
- if (streamedInput != null) {
- for (int i = 0; i < streamedInput.size(); i++) {
- String inputString =
- (String) theEntity.getValue((String) streamedInput.get(i));
- pstmt.setBytes(i + 1, inputString.getBytes());
- }
- }
-
int ret = pstmt.executeUpdate();
if (ret == 0) {
return null;
}
- pstmt = con.prepareStatement("select currval('" + getCoreTable() + "_id_seq')");
+// pstmt = con.prepareStatement("select currval('" + + "_id_seq')");
- ResultSet rs = pstmt.executeQuery();
- rs.next();
- returnId = rs.getString(1);
+ returnId = getLatestInsertedId(con);
theEntity.setId(returnId);
}
catch (SQLException sqe) {
freeConnection(con, pstmt);
}
- /** @todo store entity in o_store */
+ /** todo store entity in o_store */
return returnId;
}
Connection con = null;
PreparedStatement pstmt = null;
- /** @todo this is stupid: why do we prepare statement, when we
+ /** todo this is stupid: why do we prepare statement, when we
* throw it away afterwards. should be regular statement
* update/insert could better be one routine called save()
* that chooses to either insert or update depending if we
* have a primary key in the entity. i don't know if we
* still need the streamed input fields. // rk */
- /** @todo extension: check if Entity did change, otherwise we don't need
+ /** todo extension: check if Entity did change, otherwise we don't need
* the roundtrip to the database */
/** invalidating corresponding entitylists in o_store*/
if (StoreUtil.extendsStorableEntity(theEntityClass)) {
o_store.invalidate(stoc_type);
}
- List streamedInput = theEntity.streamedInput();
String id = theEntity.getId();
String aField;
StringBuffer fv = new StringBuffer();
aField = (String) metadataFields.get(i);
// only normal cases
- if ( !(aField.equals(thePKeyName) ||
+ // todo if entity.hasFieldValue returns false, then the value should be stored as null
+ if (!(aField.equals(primaryKeyField) ||
aField.equals("webdb_create") ||
- aField.equals("webdb_lastchange") ||
- ((streamedInput != null) && streamedInput.contains(aField)))) {
- if (theEntity.hasValueForField(aField)) {
+ aField.equals("webdb_lastchange"))) {
+ if (theEntity.hasFieldValue(aField)) {
if (firstField == false) {
fv.append(", ");
}
firstField = false;
}
- fv.append(aField).append("='").append(JDBCStringRoutines.escapeStringLiteral((String) theEntity.getValue(aField))).append("'");
+ fv.append(aField).append("='").append(JDBCStringRoutines.escapeStringLiteral(theEntity.getFieldValue(aField))).append("'");
- // fv.append(aField).append("='").append(StringUtil.quote((String)theEntity.getValue(aField))).append("'");
+ // fv.append(aField).append("='").append(StringUtil.quote((String)theEntity.getFieldValue(aField))).append("'");
}
}
}
StringBuffer sql =
- new StringBuffer("update ").append(theTable).append(" set ").append(fv);
+ new StringBuffer("update ").append(mainTable).append(" set ").append(fv);
// exceptions
if (metadataFields.contains("webdb_lastchange")) {
// special case: the webdb_create requires the field in yyyy-mm-dd HH:mm
// format so anything extra will be ignored. -mh
if (metadataFields.contains("webdb_create") &&
- theEntity.hasValueForField("webdb_create")) {
+ theEntity.hasFieldValue("webdb_create")) {
// minimum of 10 (yyyy-mm-dd)...
- if (theEntity.getValue("webdb_create").length() >= 10) {
- String dateString = theEntity.getValue("webdb_create");
+ if (theEntity.getFieldValue("webdb_create").length() >= 10) {
+ String dateString = theEntity.getFieldValue("webdb_create");
// if only 10, then add 00:00 so it doesn't throw a ParseException
if (dateString.length() == 10) {
}
}
- if (streamedInput != null) {
- for (int i = 0; i < streamedInput.size(); i++) {
- sql.append(",").append(streamedInput.get(i)).append("=?");
- }
- }
-
sql.append(" where id=").append(id);
logger.info("UPDATE: " + sql);
con.setAutoCommit(false);
pstmt = con.prepareStatement(sql.toString());
- if (streamedInput != null) {
- for (int i = 0; i < streamedInput.size(); i++) {
- String inputString =
- theEntity.getValue((String) streamedInput.get(i));
- pstmt.setBytes(i + 1, inputString.getBytes());
- }
- }
-
pstmt.executeUpdate();
}
catch (SQLException sqe) {
String uniqueId = id;
if (theEntityClass.equals(StorableObjectEntity.class)) {
- uniqueId += ("@" + theTable);
+ uniqueId += ("@" + mainTable);
}
logger.debug("CACHE: (del) " + id);
o_store.invalidate(search_sid);
}
- /** @todo could be prepared Statement */
+ /** todo could be prepared Statement */
Statement stmt = null;
Connection con = null;
int res = 0;
String sql =
- "delete from " + theTable + " where " + thePKeyName + "='" + id + "'";
+ "delete from " + mainTable + " where " + primaryKeyField + "='" + id + "'";
//theLog.printInfo("DELETE " + sql);
try {
Connection con = null;
int res = 0;
String sql =
- "delete from " + theTable + " where " + aWhereClause;
+ "delete from " + mainTable + " where " + aWhereClause;
//theLog.printInfo("DELETE " + sql);
try {
return false;
}
- /* invalidates the popupCache
- */
protected void invalidatePopupCache() {
- /** @todo invalidates toooo much */
- popupCache = null;
- hashCache = null;
+ /** todo invalidates toooo much */
}
/**
* Diese Methode fuehrt den Sqlstring <i>sql</i> aus und timed im Logfile.
* @param stmt Statemnt
* @param sql Sql-String
- * @return ResultSet
- * @exception StorageObjectException
*/
public ResultSet executeSql(Statement stmt, String sql)
throws StorageObjectFailure, SQLException {
return rs;
}
- private Map processRow(ResultSet aResultSet) throws StorageObjectFailure, StorageObjectExc {
+ private Map processRow(ResultSet aResultSet) throws StorageObjectFailure {
try {
Map result = new HashMap();
ResultSetMetaData metaData = aResultSet.getMetaData();
* returns the number of rows in the table
*/
public int getSize(String mainTablePrefix, List extraTables, String where) throws SQLException, StorageObjectFailure {
-
+
long startTime = System.currentTimeMillis();
-
- String useTable = theTable;
+
+ String useTable = mainTable;
if (mainTablePrefix!=null && mainTablePrefix.trim().length()>0) {
useTable+=" "+mainTablePrefix;
}
// append extratables, if necessary
if (extraTables!=null) {
for (int i=0;i < extraTables.size();i++) {
- if (!extraTables.get(i).equals("")) {
+ if (!extraTables.get(i).equals("")) {
countSql.append( ", " + extraTables.get(i));
}
}
/**
* Wertet ResultSetMetaData aus und setzt interne Daten entsprechend
* @param md ResultSetMetaData
- * @exception StorageObjectException
*/
private void evalMetaData(ResultSetMetaData md) throws StorageObjectFailure {
this.evaluatedMetaData = true;
aType = md.getColumnType(i);
metadataTypes[i - 1] = aType;
- if (aField.equals(thePKeyName)) {
- thePKeyType = aType;
- thePKeyIndex = i;
+ if (aField.equals(primaryKeyField)) {
}
if (md.isNullable(i) == ResultSetMetaData.columnNullable) {
private void get_meta_data() throws StorageObjectFailure {
Connection con = null;
PreparedStatement pstmt = null;
- String sql = "select * from " + theTable + " where 0=1";
+ String sql = "select * from " + mainTable + " where 0=1";
try {
con = getPooledCon();
/**
* Wertet SQLException aus und wirft dannach eine StorageObjectException
* @param sqe SQLException
- * @param wo Funktonsname, in der die SQLException geworfen wurde
- * @exception StorageObjectException
+ * @param aFunction Funktonsname, in der die SQLException geworfen wurde
*/
protected void throwSQLException(SQLException sqe, String aFunction) throws StorageObjectFailure {
String state = "";
/**
* Loggt Fehlermeldung mit dem Parameter Message und wirft dannach
* eine StorageObjectException
- * @param message Nachricht mit dem Fehler
- * @exception StorageObjectException
+ * @param aMessage Nachricht mit dem Fehler
+ * @exception StorageObjectFailure
*/
void throwStorageObjectException(String aMessage) throws StorageObjectFailure {
logger.error(aMessage);
projects / mir.git / blobdiff