Examples with MapTable org.datanucleus.store.rdbms.table.MapTable used on opensource projects

Example 6 with MapTable

use of org.datanucleus.store.rdbms.table.MapTable in project datanucleus-rdbms by datanucleus.

the class MapGetMethod method getAsSubquery.

/**
 * Implementation of Map.get() using a subquery on the table representing the map,
 * adding a condition on the key and returning the value.
 * @param stmt SQLStatement
 * @param mapExpr The map expression
 * @param keyValExpr The key value expression
 * @return The value expression
 */
protected SQLExpression getAsSubquery(SQLStatement stmt, MapExpression mapExpr, SQLExpression keyValExpr) {
    ClassLoaderResolver clr = stmt.getQueryGenerator().getClassLoaderResolver();
    AbstractMemberMetaData mmd = mapExpr.getJavaTypeMapping().getMemberMetaData();
    MapMetaData mapmd = mmd.getMap();
    RDBMSStoreManager storeMgr = stmt.getRDBMSManager();
    JavaTypeMapping ownerMapping = null;
    JavaTypeMapping keyMapping = null;
    JavaTypeMapping valMapping = null;
    Table mapTbl = null;
    if (mapmd.getMapType() == MapType.MAP_TYPE_JOIN) {
        // JoinTable
        mapTbl = storeMgr.getTable(mmd);
        ownerMapping = ((MapTable) mapTbl).getOwnerMapping();
        keyMapping = ((MapTable) mapTbl).getKeyMapping();
        valMapping = ((MapTable) mapTbl).getValueMapping();
    } else if (mapmd.getMapType() == MapType.MAP_TYPE_KEY_IN_VALUE) {
        // ForeignKey from value table to key
        AbstractClassMetaData valCmd = mapmd.getValueClassMetaData(clr);
        mapTbl = storeMgr.getDatastoreClass(mmd.getMap().getValueType(), clr);
        if (mmd.getMappedBy() != null) {
            ownerMapping = mapTbl.getMemberMapping(valCmd.getMetaDataForMember(mmd.getMappedBy()));
        } else {
            ownerMapping = ((DatastoreClass) mapTbl).getExternalMapping(mmd, MappingType.EXTERNAL_FK);
        }
        String keyFieldName = mmd.getKeyMetaData().getMappedBy();
        AbstractMemberMetaData valKeyMmd = valCmd.getMetaDataForMember(keyFieldName);
        keyMapping = mapTbl.getMemberMapping(valKeyMmd);
        valMapping = mapTbl.getIdMapping();
    } else if (mapmd.getMapType() == MapType.MAP_TYPE_VALUE_IN_KEY) {
        // ForeignKey from key table to value
        AbstractClassMetaData keyCmd = mapmd.getKeyClassMetaData(clr);
        mapTbl = storeMgr.getDatastoreClass(mmd.getMap().getKeyType(), clr);
        if (mmd.getMappedBy() != null) {
            ownerMapping = mapTbl.getMemberMapping(keyCmd.getMetaDataForMember(mmd.getMappedBy()));
        } else {
            ownerMapping = ((DatastoreClass) mapTbl).getExternalMapping(mmd, MappingType.EXTERNAL_FK);
        }
        keyMapping = mapTbl.getIdMapping();
        String valFieldName = mmd.getValueMetaData().getMappedBy();
        AbstractMemberMetaData keyValMmd = keyCmd.getMetaDataForMember(valFieldName);
        valMapping = mapTbl.getMemberMapping(keyValMmd);
    } else {
        throw new NucleusException("Invalid map for " + mapExpr + " in get() call");
    }
    SelectStatement subStmt = new SelectStatement(stmt, storeMgr, mapTbl, null, null);
    SQLExpressionFactory exprFactory = stmt.getSQLExpressionFactory();
    subStmt.setClassLoaderResolver(clr);
    SQLExpression valExpr = exprFactory.newExpression(subStmt, subStmt.getPrimaryTable(), valMapping);
    subStmt.select(valExpr, null);
    // Link to primary statement
    SQLExpression elementOwnerExpr = exprFactory.newExpression(subStmt, subStmt.getPrimaryTable(), ownerMapping);
    SQLExpression ownerIdExpr = exprFactory.newExpression(stmt, mapExpr.getSQLTable(), mapExpr.getSQLTable().getTable().getIdMapping());
    subStmt.whereAnd(elementOwnerExpr.eq(ownerIdExpr), true);
    // Condition on key
    SQLExpression keyExpr = exprFactory.newExpression(subStmt, subStmt.getPrimaryTable(), keyMapping);
    subStmt.whereAnd(keyExpr.eq(keyValExpr), true);
    SubqueryExpression subExpr = new SubqueryExpression(stmt, subStmt);
    subExpr.setJavaTypeMapping(valMapping);
    return subExpr;
}

Example 7 with MapTable

use of org.datanucleus.store.rdbms.table.MapTable in project datanucleus-rdbms by datanucleus.

the class MapGetMethod method getAsInnerJoin.

/**
 * Implementation of Map.get() using an inner join to the table representing the map, adding a condition on the key and returning the value.
 * @param stmt SQLStatement
 * @param mapExpr The map expression
 * @param keyValExpr The key value expression
 * @return The value expression
 */
protected SQLExpression getAsInnerJoin(SQLStatement stmt, MapExpression mapExpr, SQLExpression keyValExpr) {
    ClassLoaderResolver clr = stmt.getQueryGenerator().getClassLoaderResolver();
    SQLExpressionFactory exprFactory = stmt.getSQLExpressionFactory();
    JavaTypeMapping m = mapExpr.getJavaTypeMapping();
    AbstractMemberMetaData mmd = m.getMemberMetaData();
    if (mmd != null) {
        MapMetaData mapmd = mmd.getMap();
        if (mapmd.getMapType() == MapType.MAP_TYPE_JOIN) {
            MapTable joinTbl = (MapTable) stmt.getRDBMSManager().getTable(mmd);
            // Add join to join table
            SQLTable joinSqlTbl = stmt.join(JoinType.INNER_JOIN, mapExpr.getSQLTable(), mapExpr.getSQLTable().getTable().getIdMapping(), joinTbl, null, joinTbl.getOwnerMapping(), null, null);
            // Add condition on key
            SQLExpression keyExpr = exprFactory.newExpression(stmt, joinSqlTbl, joinTbl.getKeyMapping());
            stmt.whereAnd(keyExpr.eq(keyValExpr), true);
            // Return value expression
            if (mapmd.getValueClassMetaData(clr) != null) {
                // Persistable value so join to its table
                DatastoreClass valTable = stmt.getRDBMSManager().getDatastoreClass(mapmd.getValueType(), clr);
                SQLTable valueSqlTbl = stmt.join(JoinType.INNER_JOIN, joinSqlTbl, joinTbl.getValueMapping(), valTable, null, valTable.getIdMapping(), null, null);
                return exprFactory.newExpression(stmt, valueSqlTbl, valTable.getIdMapping());
            }
            // Return mapping for the value in the join table
            SQLExpression valueExpr = exprFactory.newExpression(stmt, joinSqlTbl, joinTbl.getValueMapping());
            return valueExpr;
        } else if (mapmd.getMapType() == MapType.MAP_TYPE_KEY_IN_VALUE) {
            // Key stored in value table, so join to value table
            DatastoreClass valTable = stmt.getRDBMSManager().getDatastoreClass(mapmd.getValueType(), clr);
            AbstractClassMetaData valCmd = mapmd.getValueClassMetaData(clr);
            JavaTypeMapping mapTblOwnerMapping;
            if (mmd.getMappedBy() != null) {
                mapTblOwnerMapping = valTable.getMemberMapping(valCmd.getMetaDataForMember(mmd.getMappedBy()));
            } else {
                mapTblOwnerMapping = valTable.getExternalMapping(mmd, MappingType.EXTERNAL_FK);
            }
            SQLTable valSqlTbl = stmt.join(JoinType.INNER_JOIN, mapExpr.getSQLTable(), mapExpr.getSQLTable().getTable().getIdMapping(), valTable, null, mapTblOwnerMapping, null, null);
            // Add condition on key
            JavaTypeMapping keyMapping = valTable.getMemberMapping(valCmd.getMetaDataForMember(mmd.getKeyMetaData().getMappedBy()));
            SQLExpression keyExpr = exprFactory.newExpression(stmt, valSqlTbl, keyMapping);
            stmt.whereAnd(keyExpr.eq(keyValExpr), true);
            // Return value expression
            SQLExpression valueExpr = exprFactory.newExpression(stmt, valSqlTbl, valTable.getIdMapping());
            return valueExpr;
        } else if (mapmd.getMapType() == MapType.MAP_TYPE_VALUE_IN_KEY) {
            // Value stored in key table, so join to key table
            DatastoreClass keyTable = stmt.getRDBMSManager().getDatastoreClass(mapmd.getKeyType(), clr);
            AbstractClassMetaData keyCmd = mapmd.getKeyClassMetaData(clr);
            JavaTypeMapping mapTblOwnerMapping;
            if (mmd.getMappedBy() != null) {
                mapTblOwnerMapping = keyTable.getMemberMapping(keyCmd.getMetaDataForMember(mmd.getMappedBy()));
            } else {
                mapTblOwnerMapping = keyTable.getExternalMapping(mmd, MappingType.EXTERNAL_FK);
            }
            SQLTable keySqlTbl = stmt.join(JoinType.INNER_JOIN, mapExpr.getSQLTable(), mapExpr.getSQLTable().getTable().getIdMapping(), keyTable, null, mapTblOwnerMapping, null, null);
            // Add condition on key
            SQLExpression keyExpr = exprFactory.newExpression(stmt, keySqlTbl, keyTable.getIdMapping());
            stmt.whereAnd(keyExpr.eq(keyValExpr), true);
            // Return value expression
            JavaTypeMapping valueMapping = keyTable.getMemberMapping(keyCmd.getMetaDataForMember(mmd.getValueMetaData().getMappedBy()));
            SQLExpression valueExpr = exprFactory.newExpression(stmt, keySqlTbl, valueMapping);
            return valueExpr;
        }
    }
    throw new NucleusException("Map.get() for the filter is not supported for " + mapExpr + " with an argument of " + keyValExpr + ". Why not contribute support for it?");
}

Example 8 with MapTable

use of org.datanucleus.store.rdbms.table.MapTable in project datanucleus-rdbms by datanucleus.

the class MapValueMethod method getAsJoin.

/**
 * Implementation of VALUE(map) using a join to the table representing the map, and returning the value.
 * @param stmt SQLStatement
 * @param mapExpr The map expression
 * @return The value expression
 */
protected SQLExpression getAsJoin(SQLStatement stmt, MapExpression mapExpr) {
    JavaTypeMapping m = mapExpr.getJavaTypeMapping();
    RDBMSStoreManager storeMgr = stmt.getRDBMSManager();
    ClassLoaderResolver clr = stmt.getQueryGenerator().getClassLoaderResolver();
    SQLExpressionFactory exprFactory = stmt.getSQLExpressionFactory();
    AbstractMemberMetaData mmd = m.getMemberMetaData();
    // Use the statement of the table for this Map expression, since it could be in an outer query
    stmt = mapExpr.getSQLTable().getSQLStatement();
    if (mmd != null) {
        MapMetaData mapmd = mmd.getMap();
        SQLTable mapSqlTbl = mapExpr.getSQLTable();
        // Set alias of "map" table from MapExpression in case it was defined in FROM clause
        String mapJoinAlias = mapExpr.getAliasForMapTable();
        if (mapJoinAlias == null) {
            mapJoinAlias = (mapExpr.getSQLTable().getAlias().toString() + "_" + mmd.getName()).toUpperCase();
        }
        if (mapmd.getMapType() == MapType.MAP_TYPE_JOIN) {
            // Add join to join table
            MapTable joinTbl = (MapTable) storeMgr.getTable(mmd);
            SQLTable joinSqlTbl = stmt.getTable(mapJoinAlias);
            if (joinSqlTbl == null) {
                joinSqlTbl = stmt.join(JoinType.INNER_JOIN, mapSqlTbl, mapSqlTbl.getTable().getIdMapping(), joinTbl, mapJoinAlias, joinTbl.getOwnerMapping(), null, null);
            }
            // Return value expression
            if (mapmd.getValueClassMetaData(clr) != null && !mapmd.isEmbeddedValue()) {
                // Persistable value so join to its table (default to "{mapJoinAlias}_VALUE")
                DatastoreClass valTable = storeMgr.getDatastoreClass(mapmd.getValueType(), clr);
                SQLTable valueSqlTbl = stmt.getTable(mapJoinAlias + "_VALUE");
                if (valueSqlTbl == null) {
                    valueSqlTbl = stmt.join(JoinType.INNER_JOIN, joinSqlTbl, joinTbl.getValueMapping(), valTable, mapJoinAlias + "_VALUE", valTable.getIdMapping(), null, null);
                }
                return exprFactory.newExpression(stmt, valueSqlTbl, valTable.getIdMapping());
            }
            return exprFactory.newExpression(stmt, joinSqlTbl, joinTbl.getValueMapping());
        } else if (mapmd.getMapType() == MapType.MAP_TYPE_KEY_IN_VALUE) {
            // Key stored in value table, so join to value table
            DatastoreClass valTable = storeMgr.getDatastoreClass(mapmd.getValueType(), clr);
            AbstractClassMetaData valCmd = mmd.getMap().getValueClassMetaData(clr);
            JavaTypeMapping mapTblOwnerMapping;
            if (mmd.getMappedBy() != null) {
                mapTblOwnerMapping = valTable.getMemberMapping(valCmd.getMetaDataForMember(mmd.getMappedBy()));
            } else {
                mapTblOwnerMapping = valTable.getExternalMapping(mmd, MappingType.EXTERNAL_FK);
            }
            SQLTable valSqlTbl = stmt.join(JoinType.INNER_JOIN, mapSqlTbl, mapSqlTbl.getTable().getIdMapping(), valTable, mapJoinAlias, mapTblOwnerMapping, null, null);
            // Return value expression
            return exprFactory.newExpression(stmt, valSqlTbl, valTable.getIdMapping());
        } else if (mapmd.getMapType() == MapType.MAP_TYPE_VALUE_IN_KEY) {
            // Value stored in key table, so join to key table
            DatastoreClass keyTable = storeMgr.getDatastoreClass(mapmd.getKeyType(), clr);
            AbstractClassMetaData keyCmd = mmd.getMap().getKeyClassMetaData(clr);
            JavaTypeMapping mapTblOwnerMapping;
            if (mmd.getMappedBy() != null) {
                mapTblOwnerMapping = keyTable.getMemberMapping(keyCmd.getMetaDataForMember(mmd.getMappedBy()));
            } else {
                mapTblOwnerMapping = keyTable.getExternalMapping(mmd, MappingType.EXTERNAL_FK);
            }
            SQLTable keySqlTbl = stmt.join(JoinType.INNER_JOIN, mapSqlTbl, mapSqlTbl.getTable().getIdMapping(), keyTable, mapJoinAlias, mapTblOwnerMapping, null, null);
            // Return value expression
            AbstractMemberMetaData valKeyMmd = mapmd.getKeyClassMetaData(clr).getMetaDataForMember(mmd.getValueMetaData().getMappedBy());
            JavaTypeMapping valueMapping = keyTable.getMemberMapping(valKeyMmd);
            return exprFactory.newExpression(stmt, keySqlTbl, valueMapping);
        }
    }
    throw new NucleusException("KEY(map) for the filter is not supported for " + mapExpr + ". Why not contribute support for it?");
}

Example 9 with MapTable

use of org.datanucleus.store.rdbms.table.MapTable in project datanucleus-rdbms by datanucleus.

the class MapValueMethod method getAsSubquery.

/**
 * Implementation of VALUE(map) using a subquery on the table representing the map, returning the value.
 * @param stmt SQLStatement
 * @param mapExpr The map expression
 * @return The value expression
 */
protected SQLExpression getAsSubquery(SQLStatement stmt, MapExpression mapExpr) {
    AbstractMemberMetaData mmd = mapExpr.getJavaTypeMapping().getMemberMetaData();
    MapMetaData mapmd = mmd.getMap();
    RDBMSStoreManager storeMgr = stmt.getRDBMSManager();
    ClassLoaderResolver clr = stmt.getQueryGenerator().getClassLoaderResolver();
    JavaTypeMapping ownerMapping = null;
    JavaTypeMapping valMapping = null;
    Table mapTbl = null;
    if (mapmd.getMapType() == MapType.MAP_TYPE_JOIN) {
        // JoinTable
        mapTbl = storeMgr.getTable(mmd);
        ownerMapping = ((MapTable) mapTbl).getOwnerMapping();
        valMapping = ((MapTable) mapTbl).getValueMapping();
    } else if (mapmd.getMapType() == MapType.MAP_TYPE_KEY_IN_VALUE) {
        // ForeignKey from value table to key
        AbstractClassMetaData valCmd = mapmd.getValueClassMetaData(clr);
        mapTbl = storeMgr.getDatastoreClass(mmd.getMap().getValueType(), clr);
        if (mmd.getMappedBy() != null) {
            ownerMapping = mapTbl.getMemberMapping(valCmd.getMetaDataForMember(mmd.getMappedBy()));
        } else {
            ownerMapping = ((DatastoreClass) mapTbl).getExternalMapping(mmd, MappingType.EXTERNAL_FK);
        }
        valMapping = mapTbl.getIdMapping();
    } else if (mapmd.getMapType() == MapType.MAP_TYPE_VALUE_IN_KEY) {
        // ForeignKey from key table to value
        AbstractClassMetaData keyCmd = mapmd.getKeyClassMetaData(clr);
        mapTbl = storeMgr.getDatastoreClass(mmd.getMap().getKeyType(), clr);
        if (mmd.getMappedBy() != null) {
            ownerMapping = mapTbl.getMemberMapping(keyCmd.getMetaDataForMember(mmd.getMappedBy()));
        } else {
            ownerMapping = ((DatastoreClass) mapTbl).getExternalMapping(mmd, MappingType.EXTERNAL_FK);
        }
        String valFieldName = mmd.getValueMetaData().getMappedBy();
        AbstractMemberMetaData keyValMmd = keyCmd.getMetaDataForMember(valFieldName);
        valMapping = mapTbl.getMemberMapping(keyValMmd);
    } else {
        throw new NucleusException("Invalid map for " + mapExpr + " in get() call");
    }
    SQLExpressionFactory exprFactory = stmt.getSQLExpressionFactory();
    SelectStatement subStmt = new SelectStatement(stmt, storeMgr, mapTbl, null, null);
    subStmt.setClassLoaderResolver(clr);
    SQLExpression valExpr = exprFactory.newExpression(subStmt, subStmt.getPrimaryTable(), valMapping);
    subStmt.select(valExpr, null);
    // Link to primary statement
    SQLExpression elementOwnerExpr = exprFactory.newExpression(subStmt, subStmt.getPrimaryTable(), ownerMapping);
    SQLExpression ownerIdExpr = exprFactory.newExpression(stmt, mapExpr.getSQLTable(), mapExpr.getSQLTable().getTable().getIdMapping());
    subStmt.whereAnd(elementOwnerExpr.eq(ownerIdExpr), true);
    SubqueryExpression subExpr = new SubqueryExpression(stmt, subStmt);
    subExpr.setJavaTypeMapping(valMapping);
    return subExpr;
}

Example 10 with MapTable

use of org.datanucleus.store.rdbms.table.MapTable in project datanucleus-rdbms by datanucleus.

the class RDBMSStoreManager method getBackingStoreForField.

/**
 * Accessor for the backing store for the specified member.
 * Note : if we have an embedded object that is embedded into some other type and the object has a member that requires a join table (backing store), this method
 * will not cater for the different places that can be embedded.
 * @param clr The ClassLoaderResolver
 * @param mmd metadata for the member to be persisted by this Store
 * @param type instantiated type or prefered type
 * @return The backing store
 */
public Store getBackingStoreForField(ClassLoaderResolver clr, AbstractMemberMetaData mmd, Class type) {
    if (mmd == null || mmd.isSerialized()) {
        return null;
    }
    Store store = backingStoreByMemberName.get(mmd.getFullFieldName());
    if (store != null) {
        return store;
    }
    synchronized (backingStoreByMemberName) {
        // Just in case we synced just after someone added since our previous lookup above
        store = backingStoreByMemberName.get(mmd.getFullFieldName());
        if (store != null) {
            return store;
        }
        Class expectedMappingType = null;
        if (mmd.getMap() != null) {
            expectedMappingType = MapMapping.class;
        } else if (mmd.getArray() != null) {
            expectedMappingType = ArrayMapping.class;
        } else if (mmd.getCollection() != null) {
            expectedMappingType = CollectionMapping.class;
        } else {
            expectedMappingType = PersistableMapping.class;
        }
        // Validate the mapping type matches the table
        try {
            DatastoreClass ownerTable = getDatastoreClass(mmd.getClassName(), clr);
            if (ownerTable == null) {
                // Class doesn't manage its own table (uses subclass-table, or superclass-table?)
                AbstractClassMetaData fieldTypeCmd = getMetaDataManager().getMetaDataForClass(mmd.getClassName(), clr);
                AbstractClassMetaData[] tableOwnerCmds = getClassesManagingTableForClass(fieldTypeCmd, clr);
                if (tableOwnerCmds != null && tableOwnerCmds.length == 1) {
                    ownerTable = getDatastoreClass(tableOwnerCmds[0].getFullClassName(), clr);
                }
            }
            if (ownerTable != null) {
                JavaTypeMapping m = ownerTable.getMemberMapping(mmd);
                if (!expectedMappingType.isAssignableFrom(m.getClass())) {
                    String requiredType = type != null ? type.getName() : mmd.getTypeName();
                    NucleusLogger.PERSISTENCE.warn("Member " + mmd.getFullFieldName() + " in table=" + ownerTable + " has mapping=" + m + " but expected mapping type=" + expectedMappingType);
                    throw new IncompatibleFieldTypeException(mmd.getFullFieldName(), requiredType, m.getType());
                }
            }
        } catch (NoTableManagedException ntme) {
        // Embedded, so just pass through
        }
        if (mmd.getMap() != null) {
            Table datastoreTable = getTable(mmd);
            if (datastoreTable == null) {
                store = new FKMapStore(mmd, this, clr);
            } else {
                store = new JoinMapStore((MapTable) datastoreTable, clr);
            }
        } else if (mmd.getArray() != null) {
            Table datastoreTable = getTable(mmd);
            if (datastoreTable != null) {
                store = new JoinArrayStore(mmd, (ArrayTable) datastoreTable, clr);
            } else {
                store = new FKArrayStore(mmd, this, clr);
            }
        } else if (mmd.getCollection() != null) {
            Table datastoreTable = getTable(mmd);
            if (type == null) {
                // No type to base it on so create it based on the field declared type
                if (datastoreTable == null) {
                    // We need a "FK" relation
                    if (Set.class.isAssignableFrom(mmd.getType())) {
                        store = new FKSetStore(mmd, this, clr);
                    } else if (List.class.isAssignableFrom(mmd.getType()) || Queue.class.isAssignableFrom(mmd.getType())) {
                        store = new FKListStore(mmd, this, clr);
                    } else if (mmd.getOrderMetaData() != null) {
                        // User has requested ordering
                        store = new FKListStore(mmd, this, clr);
                    } else {
                        store = new FKSetStore(mmd, this, clr);
                    }
                } else {
                    // We need a "JoinTable" relation.
                    if (Set.class.isAssignableFrom(mmd.getType())) {
                        store = new JoinSetStore(mmd, (CollectionTable) datastoreTable, clr);
                    } else if (List.class.isAssignableFrom(mmd.getType()) || Queue.class.isAssignableFrom(mmd.getType())) {
                        store = new JoinListStore(mmd, (CollectionTable) datastoreTable, clr);
                    } else if (mmd.getOrderMetaData() != null) {
                        // User has requested ordering
                        store = new JoinListStore(mmd, (CollectionTable) datastoreTable, clr);
                    } else {
                        store = new JoinSetStore(mmd, (CollectionTable) datastoreTable, clr);
                    }
                }
            } else {
                // Instantiated type specified, so use it to pick the associated backing store
                if (datastoreTable == null) {
                    if (SCOUtils.isListBased(type)) {
                        // List required
                        store = new FKListStore(mmd, this, clr);
                    } else {
                        // Set required
                        store = new FKSetStore(mmd, this, clr);
                    }
                } else {
                    if (SCOUtils.isListBased(type)) {
                        // List required
                        store = new JoinListStore(mmd, (CollectionTable) datastoreTable, clr);
                    } else {
                        // Set required
                        store = new JoinSetStore(mmd, (CollectionTable) datastoreTable, clr);
                    }
                }
            }
        } else {
            store = new JoinPersistableRelationStore(mmd, (PersistableJoinTable) getTable(mmd), clr);
        }
        backingStoreByMemberName.put(mmd.getFullFieldName(), store);
        return store;
    }
}