com.groiss.store

Interface Store

All Superinterfaces:

Remote, RemoteStore

public interface Store
extends RemoteStore

The store interface represents the interface to the database. It is used for inserting, updating, deleting and retrieving objects. You get an object implementing this interface by calling com.groiss.wf.ServiceLocator.getStore() or - in case of RMI - using the getStore() call of com.groiss.wf.Session.

Many methods contain a condition string. The syntax of them is as in an SQL where clause like "name='john' and salary > 1000", where name and salary are database fields of the given object class. In methods where the extra parameter bindVars appears, the condition can contain placeholders, for example "name=? and salary > ?".

The condition parameter may always be null, as well as the order parameter. The bindVars may be null if no placeholders are used in the condition.

Method Summary

Modifier and Type	Method and Description
void	checkUnique(Persistent o) This method throws an ApplicationException if a duplicate of the given object is in the database.
int	count(Class<?> c, String cond, Object... bindVars) This method returns the number of members of a given class matching the given condition.
int	count(String classname, String cond, Object... bindVars) This method returns the number of members of a given class matching the given condition.
int	delete(Class<?> c, String condition, Object... bindVars) Deletes some objects from the database.
int	delete(Collection<?> collection) Deletes the objects of the collection from the database.
int	delete(Persistent o) Deletes the object from the database.
int	delete(String classname, String condition, Object... bindVars) Deletes some objects from the database.
int	executeStatement(String stmt) Execute a SQL statement.
int	executeStatement(String stmt, Object... bindVars) Execute a SQL statement.
<P extends Persistent> List<P>	fill(List<P> l) Fills the objects within list l.
<P> P	fill(P o) Fill objects where only the oid is set.
<P extends Persistent,R extends Persistent> Set<P>	fillByField(Class<? extends P> c, Collection<R> collection, String fieldname) Fill a heterogeneous set of Persistents referenced via a field of a collection of (persistent) objects.
<P extends Persistent,R extends Persistent> Set<P>	fillByField(Class<? extends P> c, Collection<R> collection, String fieldname, String condition, Object... bindVars) Fill a heterogeneous set of Persistents referenced via a field of a collection of (persistent) objects.
<P extends Persistent> void	fillByFields(Collection<P> collection, String fieldNames) Fetches dependent objects of a collection of Persistents reachable via the specified fields.
<P> P	get(Class<? extends P> c, long oid) Method for getting objects from the database.
<P> P	get(Class<? extends P> c, String cond) Method for getting objects from the database.
<P> P	get(Class<? extends P> c, String cond, Object... bindVars) Method for getting objects from the database.
<P extends Persistent> P	get(String classname, long oid) Method for getting objects from the database.
<P extends Persistent> P	get(String classname, String cond) Method for getting objects from the database.
<P extends Persistent> P	get(String classname, String cond, Object... bindVars) Method for getting objects from the database.
<P> P	getNoCache(Class<? extends P> c, long oid) Method for getting objects directly from the database bypassing the object cache.
long	getOID() Return the next object id from the oid-factory in the database
String	getSchema() Returns the schema of the tables
TableModel	getTable(String q, Object... bindVars) Deprecated.
TableModel	getTable(String q, Object[] bindVars, int[] sqlTypes) Returns the results of the given query.
Object	getValue(int sqlType, String stmt, Object... bindVars) Execute a SQL statement which returns one value.
Object	getValue(String stmt) Execute a SQL statement which returns one value.
Object	getValue(String stmt, int sqlType) Deprecated.
Object	getValue(String stmt, Object... bindVars) Execute a SQL statement which returns one value.
Object	getValue(String stmt, Object[] bindVars, int sqlType) Deprecated.
boolean	hasRows(String stmt, Object... bindVars) Check whether the statement returns results.
boolean	inDatabase(Persistent o) Check whether the object is in database
void	insert(Collection<?> collection) Insert the objects of the collection into the database.
void	insert(Persistent o) Insert the object into the database.
<P> List<P>	limitedList(Class<? extends P> c, int maxRows, int offset, String cond, String order, Object... bindVars) This method returns the members of the given class matching the given condition and limiting the returned entry count.
<P> List<P>	limitedList(Class<? extends P> c, int maxRows, String cond, String order, Object... bindVars) This method returns the members of the given class matching the given condition and limiting the returned entry count.
<P> List<P>	list(Class<? extends P> c) This method returns all members of the given class.
<P> List<P>	list(Class<? extends P> c, String cond) This method returns the members of the given class matching the given condition.
<P> List<P>	list(Class<? extends P> c, String cond, String order) This method returns the members of the given class matching the given condition.
<P> List<P>	list(Class<? extends P> c, String cond, String order, Object... bindVars) This method returns the members of the given class matching the given condition.
<P> List<P>	list(Class<? extends P> c, String cond, String order, Object[] bindVars, int maxRows) Deprecated. use limitedList(Class, int, String, String, Object...) instead
<P> List<P>	list(Class<? extends P> c, String cond, String order, Object[] bindVars, int maxRows, int offset) Deprecated. use limitedList(Class, int, int, String, String, Object...) instead
<P extends Persistent> List<P>	list(String classname) This method returns all members of the given class.
<P extends Persistent> List<P>	list(String classname, String cond) This method returns the members of the given class matching the given condition.
<P extends Persistent> List<P>	list(String classname, String cond, String order) This method returns the members of the given class matching the given condition.
<P extends Persistent> List<P>	list(String classname, String cond, String order, Object... bindVars) This method returns the members of the given class matching the given condition.
<P> List<P>	list2(Class<? extends P> c, String q, Object... bindVars) This method returns the members of the given class matching the given condition.
<P extends Persistent> List<P>	list2(String classname, String q, Object... bindVars) This method returns the members of the given class matching the given condition.
<P> Set<P>	setOf(Class<? extends P> c, String cond, Object... bindVars) This method returns the members of the given class matching the given condition as a Set.
<P extends Persistent> Set<P>	setOf(String classname, String cond, Object... bindVars) This method returns the members of the given class matching the given condition as a Set.
void	setSchema(String schema) Set the schema of the tables
<P> Map<Long,P>	table(Class<? extends P> c, String cond, Object... bindVars) This method returns the members of the given class matching the given condition as a Map.
<P extends Persistent> Map<Long,P>	table(String classname, String cond, Object... bindVars) This method returns the members of the given class matching the given condition as a Map.
int	update(Collection<?> collection) Updates the objects of the collection in the database.
int	update(Persistent o) Update the database tuple corresponding to the given object.
int	update(Persistent o, String... fieldNames) Update some fields of the database tuple corresponding to the given object.

Method Detail

list

<P> List<P> list(Class<? extends P> c)

This method returns all members of the given class.

Specified by:

list in interface RemoteStore

Parameters:

c - the class of the objects

Returns:

a list of members of the given class

list

<P extends Persistent> List<P> list(String classname)

This method returns all members of the given class.

Specified by:

list in interface RemoteStore

Parameters:

classname - the name of the class of the object

Returns:

a List of members of the given class

list

<P> List<P> list(Class<? extends P> c,
                 String cond)

This method returns the members of the given class matching the given condition.

Specified by:

list in interface RemoteStore

Parameters:

c - the class of the objects

cond - a SQL condition

Returns:

a List of members of the given class

list

<P extends Persistent> List<P> list(String classname,
                                    String cond)

This method returns the members of the given class matching the given condition.

Specified by:

list in interface RemoteStore

Parameters:

classname - the name of the class of the object

cond - a SQL condition

Returns:

a List of members of the given class

list

<P> List<P> list(Class<? extends P> c,
                 String cond,
                 String order)

This method returns the members of the given class matching the given condition.

Specified by:

list in interface RemoteStore

Parameters:

c - the class of the objects

cond - a SQL condition

order - a comma separated list of attribute names of the given class.

Returns:

a List of members of the given class

list

<P extends Persistent> List<P> list(String classname,
                                    String cond,
                                    String order)

This method returns the members of the given class matching the given condition.

Specified by:

list in interface RemoteStore

Parameters:

classname - the name of the class of the object

cond - a SQL condition

order - a comma separated list of attribute names of the given class.

Returns:

a List of members of the given class

list

<P> List<P> list(Class<? extends P> c,
                 String cond,
                 String order,
                 Object... bindVars)

This method returns the members of the given class matching the given condition.

Specified by:

list in interface RemoteStore

Parameters:

c - the class of the objects

cond - a SQL condition

order - a comma separated list of attribute names of the given class.

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

Returns:

a List of members of the given class

limitedList

<P> List<P> limitedList(Class<? extends P> c,
                        int maxRows,
                        String cond,
                        String order,
                        Object... bindVars)

This method returns the members of the given class matching the given condition and limiting the returned entry count.

Note that a unique order is not only strongly recommended; some DBMSs require an order by in this case. If an empty order is provided or when the order does not contain the oid column, OID is added as order column.

Specified by:

limitedList in interface RemoteStore

Parameters:

c - the class of the objects

maxRows - the maximum number of entries to return

cond - a SQL condition

order - a comma separated list of attribute names of the given class.

bindVars - if the condition contains place holders for binding variables, this should contain the values

Returns:

a List of members of the given class

list

@Deprecated
<P> List<P> list(Class<? extends P> c,
                             String cond,
                             String order,
                             Object[] bindVars,
                             int maxRows)

Deprecated. use limitedList(Class, int, String, String, Object...) instead

This method returns the members of the given class matching the given condition and limiting the returned entry count.

Note that a unique order is not only strongly recommended; some DBMSs require an order by in this case. If an empty order is provided or when the order does not contain the oid column, OID is added as order column.

Specified by:

list in interface RemoteStore

Parameters:

c - the class of the objects

cond - a SQL condition

order - a comma separated list of attribute names of the given class.

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

maxRows - the maximum number of entries to return

Returns:

a List of members of the given class

limitedList

<P> List<P> limitedList(Class<? extends P> c,
                        int maxRows,
                        int offset,
                        String cond,
                        String order,
                        Object... bindVars)

This method returns the members of the given class matching the given condition and limiting the returned entry count.

Note that a unique order is not only strongly recommended; some DBMSs require an order by in this case. If an empty order is provided or when the order does not contain the oid column, OID is added as order column.

Specified by:

limitedList in interface RemoteStore

Parameters:

c - the class of the objects

maxRows - the maximum number of entries to return

offset - number of rows to skip from the beginning

cond - a SQL condition

order - a comma separated list of attribute names of the given class.

bindVars - if the condition contains place holders for binding variables, this should contain the values

Returns:

a List of members of the given class

list

@Deprecated
<P> List<P> list(Class<? extends P> c,
                             String cond,
                             String order,
                             Object[] bindVars,
                             int maxRows,
                             int offset)

Deprecated. use limitedList(Class, int, int, String, String, Object...) instead

This method returns the members of the given class matching the given condition and limiting the returned entry count.

Note that a unique order is not only strongly recommended; some DBMSs require an order by in this case. If an empty order is provided or when the order does not contain the oid column, OID is added as order column.

Specified by:

list in interface RemoteStore

Parameters:

c - the class of the objects

cond - a SQL condition

order - a comma separated list of attribute names of the given class.

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

maxRows - the maximum number of entries to return

offset - number of rows to skip from the beginning

Returns:

a List of members of the given class

list

<P extends Persistent> List<P> list(String classname,
                                    String cond,
                                    String order,
                                    Object... bindVars)

This method returns the members of the given class matching the given condition.

Specified by:

list in interface RemoteStore

Parameters:

classname - the name of the class of the objects

cond - a SQL condition

order - a comma separated list of attribute names of the given class.

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

Returns:

a List of members of the given class

list2

<P> List<P> list2(Class<? extends P> c,
                  String q,
                  Object... bindVars)

This method returns the members of the given class matching the given condition. the sql-query is a complete sql statement which must retrieve exactly the database attributes of the given class, for example: select u.* from avw_user u, avw_userrole ur where ... It is required to use the StoreUtil.dbAttrs(Persistent, String) dbAttrs(String) method to construct the attribute list, that is to formulate "select "+StoreUtil.dbAttrs(user,"u")+" from avw_user u, avw_userrole ur where..."

Specified by:

list2 in interface RemoteStore

Parameters:

c - the class of the objects

q - a SQL query

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

Returns:

a List of members of the given class

list2

<P extends Persistent> List<P> list2(String classname,
                                     String q,
                                     Object... bindVars)

This method returns the members of the given class matching the given condition. the sql-query is a complete sql statement which must retrieve exactly the database attributes of the given class, for example: select u.* from avw_user u, avw_userrole ur where ... It is required to use the StoreUtil.dbAttrs(Persistent, String) dbAttrs(String) method to construct the attribute list, that is to formulate "select "+StoreUtil.dbAttrs(user,"u")+" from avw_user u, avw_userrole ur where..."

Specified by:

list2 in interface RemoteStore

Parameters:

classname - the name of the class of the objects

q - a SQL query

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

Returns:

a List of members of the given class

table

<P> Map<Long,P> table(Class<? extends P> c,
                      String cond,
                      Object... bindVars)

This method returns the members of the given class matching the given condition as a Map. The keys of the map are the oids of the objects as Long objects, the values are the objects itself.

Specified by:

table in interface RemoteStore

Parameters:

c - the class of the objects

cond - a SQL condition

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

Returns:

a Map of members of the given class

table

<P extends Persistent> Map<Long,P> table(String classname,
                                         String cond,
                                         Object... bindVars)

This method returns the members of the given class matching the given condition as a Map. The keys of the table are the oids of the objects as Long objects, the values are the objects itself.

Specified by:

table in interface RemoteStore

Parameters:

classname - the name of the class of the objects

cond - a SQL condition

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

Returns:

a Map of members of the given class

setOf

<P> Set<P> setOf(Class<? extends P> c,
                 String cond,
                 Object... bindVars)

This method returns the members of the given class matching the given condition as a Set. The the values are the objects itself.

Specified by:

setOf in interface RemoteStore

Parameters:

c - the class of the objects

cond - a SQL condition

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

Returns:

a Set of members of the given class

setOf

<P extends Persistent> Set<P> setOf(String classname,
                                    String cond,
                                    Object... bindVars)

This method returns the members of the given class matching the given condition as a Set. The keys of the table are the oids of the objects as Long objects, the values are the objects itself.

Specified by:

setOf in interface RemoteStore

Parameters:

classname - the name of the class of the objects

cond - a SQL condition

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

Returns:

a Set of members of the given class

count

int count(Class<?> c,
          String cond,
          Object... bindVars)

This method returns the number of members of a given class matching the given condition.

Specified by:

count in interface RemoteStore

Parameters:

c - the class

cond - a SQL condition

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

Returns:

the number of elements

count

int count(String classname,
          String cond,
          Object... bindVars)

This method returns the number of members of a given class matching the given condition.

Specified by:

count in interface RemoteStore

Parameters:

classname - the name of the class

cond - a SQL condition

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

Returns:

the number of elements

inDatabase

boolean inDatabase(Persistent o)

Check whether the object is in database

Specified by:

inDatabase in interface RemoteStore

Returns:

true if the object is in the database

hasRows

boolean hasRows(String stmt,
                Object... bindVars)

Check whether the statement returns results.

Specified by:

hasRows in interface RemoteStore

Parameters:

stmt - the SQL statement text.

bindVars - if the stmt contains place holders for binding variables this parameter should contain the values

Returns:

true if the result set is not empty

get

<P> P get(Class<? extends P> c,
          long oid)

Method for getting objects from the database.

Specified by:

get in interface RemoteStore

Parameters:

c - the class of the object

oid - the oid of the object

Returns:

the object with a given oid

get

<P extends Persistent> P get(String classname,
                             long oid)

Method for getting objects from the database.

Specified by:

get in interface RemoteStore

Parameters:

classname - the name of the class of the object

oid - the oid of the object

Returns:

the object with a given oid

get

<P> P get(Class<? extends P> c,
          String cond)

Method for getting objects from the database.

Specified by:

get in interface RemoteStore

Parameters:

c - the class of the object

cond - a SQL condition

Returns:

the object with a given oid

get

<P extends Persistent> P get(String classname,
                             String cond)

Method for getting objects from the database.

Specified by:

get in interface RemoteStore

Parameters:

classname - the name of the class of the object

cond - a SQL condition

Returns:

an object matching the given condition

get

<P> P get(Class<? extends P> c,
          String cond,
          Object... bindVars)

Method for getting objects from the database.

Specified by:

get in interface RemoteStore

Parameters:

c - the class of the object

cond - a SQL condition

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

Returns:

an object matching the given condition

get

<P extends Persistent> P get(String classname,
                             String cond,
                             Object... bindVars)

Method for getting objects from the database.

Specified by:

get in interface RemoteStore

Parameters:

classname - the name of the class of the object

cond - a SQL condition

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

Returns:

an object matching the given condition

fill

<P> P fill(P o)

Fill objects where only the oid is set.

• if o is null: return o
• if o is filled: do nothing; return o
• if o is not in the objectcache: fill it, put it into the OC
• if there is an object oc in the objectcache which is equal to o, but oc != o, throw an 1107 exception

Specified by:

fill in interface RemoteStore

Parameters:

o - the object

Returns:

the same object with fields set from the database

fill

<P extends Persistent> List<P> fill(List<P> l)

Fills the objects within list l.

Specified by:

fill in interface RemoteStore

Parameters:

l - the list of objects to be filled

Returns:

a list of objects which are filled or remain unfilled if they could not be filled. The objects are in the same order as in l.

checkUnique

void checkUnique(Persistent o)

Description copied from interface: RemoteStore

This method throws an ApplicationException if a duplicate of the given object is in the database. It uses the key fields returned by method Persistent.getKeys() of object o for the comparison.

Specified by:

checkUnique in interface RemoteStore

Parameters:

o - the object

fillByField

<P extends Persistent,R extends Persistent> Set<P> fillByField(Class<? extends P> c,
                                                               Collection<R> collection,
                                                               String fieldname)

Fill a heterogeneous set of Persistents referenced via a field of a collection of (persistent) objects. BulkQueries are used for efficient access of the database.

Specified by:

fillByField in interface RemoteStore

Parameters:

c - (super)class of the referenced Objects

collection - the Collection of referencing objects, must all be filled.

fieldname - the name of the referencing field. Must be a Persistent.

Returns:

the set of referenced objects (filled)

fillByField

<P extends Persistent,R extends Persistent> Set<P> fillByField(Class<? extends P> c,
                                                               Collection<R> collection,
                                                               String fieldname,
                                                               String condition,
                                                               Object... bindVars)

Fill a heterogeneous set of Persistents referenced via a field of a collection of (persistent) objects. BulkQueries are used for efficient access of the database.

Specified by:

fillByField in interface RemoteStore

Parameters:

c - (super)class of the referenced Objects

collection - the Collection of referencing objects, must all be filled.

fieldname - the name of the referencing field. Must be a Persistent.

condition - an optional SQL condition.

bindVars - optional array of parameter bindings for the SQL statement.

Returns:

the set of referenced objects (filled)

fillByFields

<P extends Persistent> void fillByFields(Collection<P> collection,
                                         String fieldNames)

Fetches dependent objects of a collection of Persistents reachable via the specified fields. BulkQueries are used for efficient access of the database.

Specified by:

fillByFields in interface RemoteStore

Parameters:

collection - the Collection of referencing objects, must all be filled.

fieldNames - a comma separated string of field names. Every field name must denote a Persistent field.

insert

void insert(Persistent o)

Insert the object into the database. Does not write a LogEntry.

Specified by:

insert in interface RemoteStore

Parameters:

o - the object

insert

void insert(Collection<?> collection)

Insert the objects of the collection into the database. Does not write LogEntry objects.

Specified by:

insert in interface RemoteStore

Parameters:

collection - the objects to insert (all of the objects must implement Persistent)

update

int update(Persistent o)

Update the database tuple corresponding to the given object. Does not write a LogEntry.

Specified by:

update in interface RemoteStore

Parameters:

o - the object

Returns:

the number of updated tuples (0 or 1)

update

int update(Collection<?> collection)

Updates the objects of the collection in the database. Does not write LogEntry objects.

Specified by:

update in interface RemoteStore

Parameters:

collection - the objects to update (all of the objects must implement Persistent)

Returns:

the number of updated tuples

update

int update(Persistent o,
           String... fieldNames)

Update some fields of the database tuple corresponding to the given object. Does not write a LogEntry.

Specified by:

update in interface RemoteStore

Parameters:

o - the object

fieldNames - an array containing the names of the fields which should be updated

Returns:

the number of updated tuples (0 or 1)

delete

int delete(Persistent o)

Deletes the object from the database. Does not write a LogEntry.

Specified by:

delete in interface RemoteStore

Parameters:

o - the object to delete

Returns:

the number of deleted tuples (0 or 1)

delete

int delete(Collection<?> collection)

Deletes the objects of the collection from the database. Does not write LogEntry objects.

Specified by:

delete in interface RemoteStore

Parameters:

collection - the objects to delete (all of the objects must implement Persistent)

Returns:

the number of deleted tuples

delete

int delete(Class<?> c,
           String condition,
           Object... bindVars)

Deletes some objects from the database. Does not write a LogEntry. Note that neither the Persistent.beforeDelete() nor PersistentEventHandler.beforeDelete(Persistent) methods are called for the individual deleted objects.

Specified by:

delete in interface RemoteStore

Parameters:

c - the class of the objects

condition - a SQL condition

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

Returns:

the number of deleted tuples

delete

int delete(String classname,
           String condition,
           Object... bindVars)

Deletes some objects from the database. Does not write a LogEntry. Note that neither the Persistent.beforeDelete() nor PersistentEventHandler.beforeDelete(Persistent) methods are called for the individual deleted objects.

Specified by:

delete in interface RemoteStore

Parameters:

classname - the name of the class of the objects

condition - a SQL condition

bindVars - if the condition contains place holders for binding variables this parameter should contain the values

Returns:

the number of deleted tuples

executeStatement

int executeStatement(String stmt)

Execute a SQL statement.

Specified by:

executeStatement in interface RemoteStore

Parameters:

stmt - the SQL statement text.

Returns:

the number of rows changed

executeStatement

int executeStatement(String stmt,
                     Object... bindVars)

Execute a SQL statement.

Specified by:

executeStatement in interface RemoteStore

Parameters:

stmt - the SQL statement text.

bindVars - if the stmt contains place holders for binding variables this parameter should contain the values

Returns:

the number of rows changed

getOID

long getOID()

Return the next object id from the oid-factory in the database

Specified by:

getOID in interface RemoteStore

Returns:

an unique object id

getValue

Object getValue(String stmt)

Execute a SQL statement which returns one value. The statement is executed, the first row fetched and from the result set the first element is returned.

Specified by:

getValue in interface RemoteStore

Parameters:

stmt - the SQL statement text.

Returns:

the value as object.

getValue

@Deprecated
Object getValue(String stmt,
                            int sqlType)

Deprecated.

Execute a SQL statement which returns one value. The statement is executed, the first row fetched and from the result set the first element is returned.

Specified by:

getValue in interface RemoteStore

Parameters:

stmt - the SQL statement text.

sqlType - if a special mapping of the database type to java type is needed, the type (java.sql.Types) can be specified here.

Returns:

the value as object.

getValue

Object getValue(String stmt,
                Object... bindVars)

Execute a SQL statement which returns one value. The statement is executed, the first row fetched and from the result set the first element is returned.

Specified by:

getValue in interface RemoteStore

Parameters:

stmt - the SQL statement text.

bindVars - if the stmt contains place holders for binding variables this parameter should contain the values

Returns:

the value as object.

getValue

@Deprecated
Object getValue(String stmt,
                            Object[] bindVars,
                            int sqlType)

Deprecated.

Execute a SQL statement which returns one value. The statement is executed, the first row fetched and from the result set the first element is returned.

Specified by:

getValue in interface RemoteStore

Parameters:

stmt - the SQL statement text.

bindVars - if the stmt contains place holders for binding variables this parameter should contain the values

sqlType - if a special mapping of the database type to java type is needed, the type (java.sql.Types) can be specified here.

Returns:

the value as object.

getValue

Object getValue(int sqlType,
                String stmt,
                Object... bindVars)

Execute a SQL statement which returns one value. The statement is executed, the first row fetched and from the result set the first element is returned.

Specified by:

getValue in interface RemoteStore

Parameters:

sqlType - if a special mapping of the database type to java type is needed, the type (java.sql.Types) can be specified here.

stmt - the SQL statement text.

bindVars - if the stmt contains place holders for binding variables, this should contain the values

Returns:

the value as object.

getTable

@Deprecated
TableModel getTable(String q,
                                Object... bindVars)

Deprecated.

Returns the results of the given query.

Specified by:

getTable in interface RemoteStore

Parameters:

q - the sql-query

bindVars - if the query contains place holders for binding variables this parameter should contain the values

Returns:

a list of list of values

getTable

TableModel getTable(String q,
                    Object[] bindVars,
                    int[] sqlTypes)

Returns the results of the given query.

Specified by:

getTable in interface RemoteStore

Parameters:

q - the sql-query

bindVars - if the query contains place holders for binding variables this parameter should contain the values

sqlTypes - if a special mapping of database types to java types is needed, the types (java.sql.Types) can be specified here. The length of the array must be equal to the number of columns in the result set.

Returns:

a list of list of values

setSchema

void setSchema(String schema)

Set the schema of the tables

Specified by:

setSchema in interface RemoteStore

getSchema

String getSchema()

Returns the schema of the tables

Specified by:

getSchema in interface RemoteStore

getNoCache

<P> P getNoCache(Class<? extends P> c,
                 long oid)

Method for getting objects directly from the database bypassing the object cache.

Should only be needed in special circumstances like comparing the current state of an object to an old state in the database.

The result should be used with care, in particular, its unwise to change it in any way.

Specified by:

getNoCache in interface RemoteStore

Parameters:

c - the class of the object

oid - the oid of the object

Returns:

the object with a given oid