Examples with ColumnMapping org.datanucleus.store.rdbms.mapping.column.ColumnMapping used on opensource projects

Example 11 with ColumnMapping

use of org.datanucleus.store.rdbms.mapping.column.ColumnMapping in project datanucleus-rdbms by datanucleus.

the class MappingManagerImpl method createColumnMapping.

/**
 * Method to create the column mapping for a java type mapping at a particular index.
 * @param mapping The java mapping
 * @param mmd MetaData for the field/property
 * @param index Index of the column
 * @param column The column
 * @return The column mapping
 */
public ColumnMapping createColumnMapping(JavaTypeMapping mapping, AbstractMemberMetaData mmd, int index, Column column) {
    Class<? extends ColumnMapping> columnMappingClass = null;
    if (mmd.getColumnMetaData().length > 0) {
        // Use "column-mapping-class" extension if provided
        if (mmd.getColumnMetaData()[index].hasExtension("column-mapping-class")) {
            columnMappingClass = clr.classForName(mmd.getColumnMetaData()[index].getValueForExtension("column-mapping-class"));
        }
    }
    if (columnMappingClass == null) {
        String javaType = mapping.getJavaTypeForColumnMapping(index);
        String jdbcType = null;
        String sqlType = null;
        if (mapping.getRoleForMember() == FieldRole.ROLE_ARRAY_ELEMENT || mapping.getRoleForMember() == FieldRole.ROLE_COLLECTION_ELEMENT) {
            // Element of a collection/array
            ColumnMetaData[] colmds = (mmd.getElementMetaData() != null ? mmd.getElementMetaData().getColumnMetaData() : null);
            if (colmds != null && colmds.length > 0) {
                jdbcType = colmds[index].getJdbcTypeName();
                sqlType = colmds[index].getSqlType();
            }
            if (mmd.getCollection() != null && mmd.getCollection().isSerializedElement()) {
                javaType = ClassNameConstants.JAVA_IO_SERIALIZABLE;
            }
            if (mmd.getArray() != null && mmd.getArray().isSerializedElement()) {
                javaType = ClassNameConstants.JAVA_IO_SERIALIZABLE;
            }
        } else if (mapping.getRoleForMember() == FieldRole.ROLE_MAP_KEY) {
            // Key of a map
            ColumnMetaData[] colmds = (mmd.getKeyMetaData() != null ? mmd.getKeyMetaData().getColumnMetaData() : null);
            if (colmds != null && colmds.length > 0) {
                jdbcType = colmds[index].getJdbcTypeName();
                sqlType = colmds[index].getSqlType();
            }
            if (mmd.getMap().isSerializedKey()) {
                javaType = ClassNameConstants.JAVA_IO_SERIALIZABLE;
            }
        } else if (mapping.getRoleForMember() == FieldRole.ROLE_MAP_VALUE) {
            // Value of a map
            ColumnMetaData[] colmds = (mmd.getValueMetaData() != null ? mmd.getValueMetaData().getColumnMetaData() : null);
            if (colmds != null && colmds.length > 0) {
                jdbcType = colmds[index].getJdbcTypeName();
                sqlType = colmds[index].getSqlType();
            }
            if (mmd.getMap().isSerializedValue()) {
                javaType = ClassNameConstants.JAVA_IO_SERIALIZABLE;
            }
        } else {
            // Normal member
            if (mmd.getColumnMetaData().length > 0) {
                // Utilise the jdbc and sql types if specified
                jdbcType = mmd.getColumnMetaData()[index].getJdbcTypeName();
                sqlType = mmd.getColumnMetaData()[index].getSqlType();
            }
            // Special case where we have IDENTITY strategy and the datastore imposes a limitation on the required datastore type
            ValueGenerationStrategy strategy = mmd.getValueStrategy();
            if (strategy != null) {
                String strategyName = strategy.toString();
                if (strategy == ValueGenerationStrategy.NATIVE) {
                    strategyName = storeMgr.getValueGenerationStrategyForNative(mmd);
                }
                if (strategyName != null && ValueGenerationStrategy.IDENTITY.toString().equals(strategyName)) {
                    Class requestedType = clr.classForName(javaType);
                    Class requiredType = storeMgr.getDatastoreAdapter().getIdentityJavaTypeForType(requestedType);
                    if (requiredType != mmd.getType()) {
                        NucleusLogger.DATASTORE_SCHEMA.debug("Member " + mmd.getFullFieldName() + " uses IDENTITY strategy and rather than using memberType of " + mmd.getTypeName() + " for the column type, using " + requiredType + " since the datastore requires that");
                    }
                    javaType = requiredType.getName();
                }
            }
            if (mmd.isSerialized()) {
                javaType = ClassNameConstants.JAVA_IO_SERIALIZABLE;
            }
        }
        columnMappingClass = storeMgr.getDatastoreAdapter().getColumnMappingClass(javaType, jdbcType, sqlType, clr, mmd.getFullFieldName());
    }
    ColumnMapping columnMapping = ColumnMappingFactory.createMapping(columnMappingClass, mapping, storeMgr, column);
    if (column != null) {
        column.setColumnMapping(columnMapping);
    }
    return columnMapping;
}

Example 12 with ColumnMapping

use of org.datanucleus.store.rdbms.mapping.column.ColumnMapping in project datanucleus-rdbms by datanucleus.

the class InsertRequest method execute.

/**
 * Method performing the insertion of the record from the datastore.
 * Takes the constructed insert query and populates with the specific record information.
 * @param sm StateManager for the record to be inserted
 */
public void execute(DNStateManager sm) {
    ExecutionContext ec = sm.getExecutionContext();
    if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
        // Debug information about what we are inserting
        NucleusLogger.PERSISTENCE.debug(Localiser.msg("052207", sm.getObjectAsPrintable(), table));
    }
    try {
        VersionMetaData vermd = table.getVersionMetaData();
        RDBMSStoreManager storeMgr = table.getStoreManager();
        if (vermd != null && vermd.getMemberName() != null) {
            // Version field - Update the version in the object
            AbstractMemberMetaData verfmd = ((AbstractClassMetaData) vermd.getParent()).getMetaDataForMember(vermd.getMemberName());
            Object currentVersion = sm.getVersion();
            if (currentVersion instanceof Number) {
                // Cater for Integer based versions
                currentVersion = Long.valueOf(((Number) currentVersion).longValue());
            }
            Object nextOptimisticVersion = ec.getLockManager().getNextVersion(vermd, currentVersion);
            if (verfmd.getType() == Integer.class || verfmd.getType() == int.class) {
                // Cater for Integer based versions
                nextOptimisticVersion = Integer.valueOf(((Number) nextOptimisticVersion).intValue());
            }
            sm.replaceField(verfmd.getAbsoluteFieldNumber(), nextOptimisticVersion);
        }
        // Set the state to "inserting" (may already be at this state if multiple inheritance level INSERT)
        sm.setInserting();
        // sm.changeActivityState(ActivityState.INSERTING);
        SQLController sqlControl = storeMgr.getSQLController();
        ManagedConnection mconn = storeMgr.getConnectionManager().getConnection(ec);
        try {
            List<String> pkColumnNames = new ArrayList<>();
            if (table.getIdentityType() == IdentityType.DATASTORE) {
                JavaTypeMapping mapping = table.getSurrogateMapping(SurrogateColumnType.DATASTORE_ID, true);
                ColumnMapping[] columnMappings = mapping.getColumnMappings();
                pkColumnNames = Stream.of(columnMappings).map(cm -> cm.getColumn().getIdentifier().getName()).collect(toList());
            } else if (table.getIdentityType() == IdentityType.APPLICATION) {
                List<Column> pkColumns = ((AbstractClassTable) table).getPrimaryKey().getColumns();
                if (!pkColumns.isEmpty()) {
                    pkColumnNames = pkColumns.stream().map(cm -> cm.getName()).collect(toList());
                }
            }
            PreparedStatement ps = sqlControl.getStatementForUpdate(mconn, insertStmt, batch, hasIdentityColumn && storeMgr.getDatastoreAdapter().supportsOption(DatastoreAdapter.GET_GENERATED_KEYS_STATEMENT), pkColumnNames);
            try {
                StatementClassMapping mappingDefinition = new StatementClassMapping();
                for (int i = 0; i < stmtMappings.length; i++) {
                    if (stmtMappings[i] != null) {
                        mappingDefinition.addMappingForMember(i, stmtMappings[i]);
                    }
                }
                // Provide the primary key field(s)
                if (table.getIdentityType() == IdentityType.DATASTORE) {
                    if (!table.isObjectIdDatastoreAttributed() || !table.isBaseDatastoreClass()) {
                        int[] paramNumber = { IDPARAMNUMBER };
                        table.getSurrogateMapping(SurrogateColumnType.DATASTORE_ID, false).setObject(ec, ps, paramNumber, sm.getInternalObjectId());
                    }
                } else if (table.getIdentityType() == IdentityType.APPLICATION) {
                    if (pkFieldNumbers != null && pkFieldNumbers.length > 0) {
                        sm.provideFields(pkFieldNumbers, new ParameterSetter(sm, ps, mappingDefinition));
                    }
                }
                // Provide all non-key fields needed for the insert - provides "persistence-by-reachability" for these fields
                if (insertFieldNumbers.length > 0) {
                    AbstractClassMetaData cmd = sm.getClassMetaData();
                    if (createTimestampStmtMapping != null) {
                        // Set create timestamp to time for the start of this transaction
                        int createTimestampMemberPos = cmd.getCreateTimestampMemberPosition();
                        AbstractMemberMetaData mmd = cmd.getMetaDataForManagedMemberAtAbsolutePosition(createTimestampMemberPos);
                        if (mmd.getType().isAssignableFrom(java.time.Instant.class)) {
                            sm.replaceField(createTimestampMemberPos, ec.getTransaction().getIsActive() ? java.time.Instant.ofEpochMilli(ec.getTransaction().getBeginTime()) : java.time.Instant.now());
                        } else {
                            sm.replaceField(createTimestampMemberPos, ec.getTransaction().getIsActive() ? new Timestamp(ec.getTransaction().getBeginTime()) : new Timestamp(System.currentTimeMillis()));
                        }
                    }
                    if (createUserStmtMapping != null) {
                        // Set create user to current user
                        sm.replaceField(cmd.getCreateUserMemberPosition(), ec.getCurrentUser());
                    }
                    int numberOfFieldsToProvide = 0;
                    int numMembers = cmd.getMemberCount();
                    for (int i = 0; i < insertFieldNumbers.length; i++) {
                        if (insertFieldNumbers[i] < numMembers) {
                            numberOfFieldsToProvide++;
                        }
                    }
                    int j = 0;
                    int[] fieldNums = new int[numberOfFieldsToProvide];
                    for (int i = 0; i < insertFieldNumbers.length; i++) {
                        if (insertFieldNumbers[i] < numMembers) {
                            fieldNums[j++] = insertFieldNumbers[i];
                        }
                    }
                    sm.provideFields(fieldNums, new ParameterSetter(sm, ps, mappingDefinition));
                }
                JavaTypeMapping versionMapping = table.getSurrogateMapping(SurrogateColumnType.VERSION, false);
                if (versionMapping != null) {
                    // Surrogate version - set the new version for the object
                    Object currentVersion = sm.getVersion();
                    Object nextOptimisticVersion = ec.getLockManager().getNextVersion(vermd, currentVersion);
                    for (int k = 0; k < versionStmtMapping.getNumberOfParameterOccurrences(); k++) {
                        versionMapping.setObject(ec, ps, versionStmtMapping.getParameterPositionsForOccurrence(k), nextOptimisticVersion);
                    }
                    sm.setTransactionalVersion(nextOptimisticVersion);
                } else if (vermd != null && vermd.getMemberName() != null) {
                    // Version field - set the new version for the object
                    Object currentVersion = sm.getVersion();
                    Object nextOptimisticVersion = ec.getLockManager().getNextVersion(vermd, currentVersion);
                    sm.setTransactionalVersion(nextOptimisticVersion);
                }
                if (multitenancyStmtMapping != null) {
                    // Multitenancy mapping
                    String tenantId = ec.getTenantId();
                    if (tenantId == null) {
                        NucleusLogger.PERSISTENCE.warn("Insert of object with multitenancy column but tenantId not set! Suggest that you set it.");
                    }
                    table.getSurrogateMapping(SurrogateColumnType.MULTITENANCY, false).setObject(ec, ps, multitenancyStmtMapping.getParameterPositionsForOccurrence(0), tenantId);
                }
                if (softDeleteStmtMapping != null) {
                    // Soft-Delete mapping
                    table.getSurrogateMapping(SurrogateColumnType.SOFTDELETE, false).setObject(ec, ps, softDeleteStmtMapping.getParameterPositionsForOccurrence(0), Boolean.FALSE);
                }
                if (createUserStmtMapping != null) {
                    table.getSurrogateMapping(SurrogateColumnType.CREATE_USER, false).setObject(ec, ps, createUserStmtMapping.getParameterPositionsForOccurrence(0), ec.getCurrentUser());
                }
                if (createTimestampStmtMapping != null) {
                    table.getSurrogateMapping(SurrogateColumnType.CREATE_TIMESTAMP, false).setObject(ec, ps, createTimestampStmtMapping.getParameterPositionsForOccurrence(0), new Timestamp(ec.getTransaction().getIsActive() ? ec.getTransaction().getBeginTime() : System.currentTimeMillis()));
                }
                if (updateUserStmtMapping != null) {
                    // TODO Do we need to specify this on INSERT? can they be nullable?
                    table.getSurrogateMapping(SurrogateColumnType.UPDATE_USER, false).setObject(ec, ps, updateUserStmtMapping.getParameterPositionsForOccurrence(0), "");
                }
                if (updateTimestampStmtMapping != null) {
                    // TODO Do we need to specify this on INSERT? can they be nullable?
                    table.getSurrogateMapping(SurrogateColumnType.UPDATE_TIMESTAMP, false).setObject(ec, ps, updateTimestampStmtMapping.getParameterPositionsForOccurrence(0), null);
                }
                JavaTypeMapping discrimMapping = table.getSurrogateMapping(SurrogateColumnType.DISCRIMINATOR, false);
                if (discrimMapping != null) {
                    // Discriminator mapping
                    Object discVal = sm.getClassMetaData().getDiscriminatorValue();
                    for (int k = 0; k < discriminatorStmtMapping.getNumberOfParameterOccurrences(); k++) {
                        discrimMapping.setObject(ec, ps, discriminatorStmtMapping.getParameterPositionsForOccurrence(k), discVal);
                    }
                }
                // External FK columns (optional)
                if (externalFKStmtMappings != null) {
                    for (int i = 0; i < externalFKStmtMappings.length; i++) {
                        Object fkValue = sm.getAssociatedValue(externalFKStmtMappings[i].getMapping());
                        if (fkValue != null) {
                            // Need to provide the owner field number so PCMapping can work out if it is inserted yet
                            AbstractMemberMetaData ownerFmd = table.getMetaDataForExternalMapping(externalFKStmtMappings[i].getMapping(), MappingType.EXTERNAL_FK);
                            for (int k = 0; k < externalFKStmtMappings[i].getNumberOfParameterOccurrences(); k++) {
                                externalFKStmtMappings[i].getMapping().setObject(ec, ps, externalFKStmtMappings[i].getParameterPositionsForOccurrence(k), fkValue, null, ownerFmd.getAbsoluteFieldNumber());
                            }
                        } else {
                            // We're inserting a null so don't need the owner field
                            for (int k = 0; k < externalFKStmtMappings[i].getNumberOfParameterOccurrences(); k++) {
                                externalFKStmtMappings[i].getMapping().setObject(ec, ps, externalFKStmtMappings[i].getParameterPositionsForOccurrence(k), null);
                            }
                        }
                    }
                }
                // External FK discriminator columns (optional)
                if (externalFKDiscrimStmtMappings != null) {
                    for (int i = 0; i < externalFKDiscrimStmtMappings.length; i++) {
                        Object discrimValue = sm.getAssociatedValue(externalFKDiscrimStmtMappings[i].getMapping());
                        for (int k = 0; k < externalFKDiscrimStmtMappings[i].getNumberOfParameterOccurrences(); k++) {
                            externalFKDiscrimStmtMappings[i].getMapping().setObject(ec, ps, externalFKDiscrimStmtMappings[i].getParameterPositionsForOccurrence(k), discrimValue);
                        }
                    }
                }
                // External order columns (optional)
                if (externalOrderStmtMappings != null) {
                    for (int i = 0; i < externalOrderStmtMappings.length; i++) {
                        Object orderValue = sm.getAssociatedValue(externalOrderStmtMappings[i].getMapping());
                        if (orderValue == null) {
                            // No order value so use -1
                            orderValue = Integer.valueOf(-1);
                        }
                        for (int k = 0; k < externalOrderStmtMappings[i].getNumberOfParameterOccurrences(); k++) {
                            externalOrderStmtMappings[i].getMapping().setObject(ec, ps, externalOrderStmtMappings[i].getParameterPositionsForOccurrence(k), orderValue);
                        }
                    }
                }
                sqlControl.executeStatementUpdate(ec, mconn, insertStmt, ps, !batch);
                if (hasIdentityColumn) {
                    // Identity column was set in the datastore using auto-increment/identity/serial etc
                    Object newId = getInsertedIdentityValue(ec, sqlControl, sm, mconn, ps);
                    sm.setPostStoreNewObjectId(newId);
                    if (NucleusLogger.DATASTORE_PERSIST.isDebugEnabled()) {
                        NucleusLogger.DATASTORE_PERSIST.debug(Localiser.msg("052206", sm.getObjectAsPrintable(), IdentityUtils.getPersistableIdentityForId(sm.getInternalObjectId())));
                    }
                }
                // Execute any mapping actions on the insert of the fields (e.g Oracle CLOBs/BLOBs)
                if (postSetMappings != null) {
                    for (JavaTypeMapping m : postSetMappings) {
                        if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
                            NucleusLogger.PERSISTENCE.debug(Localiser.msg("052222", sm.getObjectAsPrintable(), m.getMemberMetaData().getFullFieldName()));
                        }
                        m.performSetPostProcessing(sm);
                    }
                }
                // Update the insert status for this table via the StoreManager
                storeMgr.setObjectIsInsertedToLevel(sm, table);
                // (if we did it the other way around we would get a NotYetFlushedException thrown above).
                for (int i = 0; i < relationFieldNumbers.length; i++) {
                    Object value = sm.provideField(relationFieldNumbers[i]);
                    if (value != null && ec.getApiAdapter().isDetached(value)) {
                        Object valueAttached = ec.persistObjectInternal(value, null, -1, PersistableObjectType.PC);
                        sm.replaceField(relationFieldNumbers[i], valueAttached);
                    }
                }
                // Perform reachability on all fields that have no datastore column (1-1 bi non-owner, N-1 bi join)
                if (reachableFieldNumbers.length > 0) {
                    int numberOfReachableFields = 0;
                    for (int i = 0; i < reachableFieldNumbers.length; i++) {
                        if (reachableFieldNumbers[i] < sm.getClassMetaData().getMemberCount()) {
                            numberOfReachableFields++;
                        }
                    }
                    int[] fieldNums = new int[numberOfReachableFields];
                    int j = 0;
                    for (int i = 0; i < reachableFieldNumbers.length; i++) {
                        if (reachableFieldNumbers[i] < sm.getClassMetaData().getMemberCount()) {
                            fieldNums[j++] = reachableFieldNumbers[i];
                        }
                    }
                    mappingDefinition = new StatementClassMapping();
                    for (int i = 0; i < retrievedStmtMappings.length; i++) {
                        if (retrievedStmtMappings[i] != null) {
                            mappingDefinition.addMappingForMember(i, retrievedStmtMappings[i]);
                        }
                    }
                    NucleusLogger.PERSISTENCE.debug("Performing reachability on fields " + StringUtils.intArrayToString(fieldNums));
                    sm.provideFields(fieldNums, new ParameterSetter(sm, ps, mappingDefinition));
                }
            } finally {
                sqlControl.closeStatement(mconn, ps);
            }
        } finally {
            mconn.release();
        }
    } catch (SQLException e) {
        String msg = Localiser.msg("052208", sm.getObjectAsPrintable(), insertStmt, e.getMessage());
        NucleusLogger.DATASTORE_PERSIST.warn(msg);
        List<Exception> exceptions = new ArrayList<>();
        exceptions.add(e);
        while ((e = e.getNextException()) != null) {
            exceptions.add(e);
        }
        throw new NucleusDataStoreException(msg, exceptions.toArray(new Throwable[exceptions.size()]));
    }
    // Execute any mapping actions now that we have inserted the element (things like inserting any association parent-child).
    if (mappingCallbacks != null) {
        for (MappingCallbacks m : mappingCallbacks) {
            try {
                if (NucleusLogger.PERSISTENCE.isDebugEnabled()) {
                    NucleusLogger.PERSISTENCE.debug(Localiser.msg("052209", IdentityUtils.getPersistableIdentityForId(sm.getInternalObjectId()), ((JavaTypeMapping) m).getMemberMetaData().getFullFieldName()));
                }
                m.postInsert(sm);
            } catch (NotYetFlushedException e) {
                sm.updateFieldAfterInsert(e.getPersistable(), ((JavaTypeMapping) m).getMemberMetaData().getAbsoluteFieldNumber());
            }
        }
    }
}