Examples with JavaTypeMapping org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping used on opensource projects

Example 16 with JavaTypeMapping

use of org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping in project datanucleus-rdbms by datanucleus.

the class AppIDObjectIdFieldManager method storeShortField.

/**
 * Method to store a short in a field.
 * @param fieldNumber Number of the field
 * @param value The value to use
 */
public void storeShortField(int fieldNumber, short value) {
    JavaTypeMapping mapping = javaTypeMappings[mappingNum++];
    mapping.setShort(ec, statement, getParamsForField(mapping), value);
}

Example 17 with JavaTypeMapping

use of org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping in project datanucleus-rdbms by datanucleus.

the class MappingHelper method getObjectForApplicationIdentity.

/**
 * Get the object instance for a class using application identity
 * @param ec ExecutionContext
 * @param mapping The mapping in which this is returned
 * @param rs the ResultSet
 * @param resultIndexes indexes in the result set to retrieve
 * @param cmd the AbstractClassMetaData
 * @return the id
 */
public static Object getObjectForApplicationIdentity(final ExecutionContext ec, JavaTypeMapping mapping, final ResultSet rs, int[] resultIndexes, AbstractClassMetaData cmd) {
    ClassLoaderResolver clr = ec.getClassLoaderResolver();
    // Abstract class
    if (((ClassMetaData) cmd).isAbstract() && cmd.getObjectidClass() != null) {
        return getObjectForAbstractClass(ec, mapping, rs, resultIndexes, cmd);
    }
    int totalFieldCount = cmd.getNoOfManagedMembers() + cmd.getNoOfInheritedManagedMembers();
    final StatementMappingIndex[] statementExpressionIndex = new StatementMappingIndex[totalFieldCount];
    int paramIndex = 0;
    DatastoreClass datastoreClass = mapping.getStoreManager().getDatastoreClass(cmd.getFullClassName(), clr);
    final int[] pkFieldNumbers = cmd.getPKMemberPositions();
    for (int i = 0; i < pkFieldNumbers.length; ++i) {
        AbstractMemberMetaData fmd = cmd.getMetaDataForManagedMemberAtAbsolutePosition(pkFieldNumbers[i]);
        JavaTypeMapping m = datastoreClass.getMemberMapping(fmd);
        statementExpressionIndex[fmd.getAbsoluteFieldNumber()] = new StatementMappingIndex(m);
        int[] expressionsIndex = new int[m.getNumberOfDatastoreMappings()];
        for (int j = 0; j < expressionsIndex.length; j++) {
            expressionsIndex[j] = resultIndexes[paramIndex++];
        }
        statementExpressionIndex[fmd.getAbsoluteFieldNumber()].setColumnPositions(expressionsIndex);
    }
    final StatementClassMapping resultMappings = new StatementClassMapping();
    for (int i = 0; i < pkFieldNumbers.length; i++) {
        resultMappings.addMappingForMember(pkFieldNumbers[i], statementExpressionIndex[pkFieldNumbers[i]]);
    }
    // TODO Use any other (non-PK) param values
    final FieldManager resultsFM = new ResultSetGetter(ec, rs, resultMappings, cmd);
    Object id = IdentityUtils.getApplicationIdentityForResultSetRow(ec, cmd, null, false, resultsFM);
    Class type = ec.getClassLoaderResolver().classForName(cmd.getFullClassName());
    return ec.findObject(id, new FieldValues() {

        public void fetchFields(ObjectProvider sm) {
            sm.replaceFields(pkFieldNumbers, resultsFM);
        }

        public void fetchNonLoadedFields(ObjectProvider sm) {
            sm.replaceNonLoadedFields(pkFieldNumbers, resultsFM);
        }

        public FetchPlan getFetchPlanForLoading() {
            return ec.getFetchPlan();
        }
    }, type, false, true);
}

Example 18 with JavaTypeMapping

use of org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping in project datanucleus-rdbms by datanucleus.

the class QueryToSQLMapper method processPrimaryExpression.

/* (non-Javadoc)
     * @see org.datanucleus.query.evaluator.AbstractExpressionEvaluator#processPrimaryExpression(org.datanucleus.query.expression.PrimaryExpression)
     */
protected Object processPrimaryExpression(PrimaryExpression expr) {
    SQLExpression sqlExpr = null;
    if (expr.getLeft() != null) {
        if (expr.getLeft() instanceof DyadicExpression && expr.getLeft().getOperator() == Expression.OP_CAST) {
            String exprCastName = null;
            if (expr.getLeft().getLeft() instanceof PrimaryExpression) {
                exprCastName = "CAST_" + ((PrimaryExpression) expr.getLeft().getLeft()).getId();
            } else if (expr.getLeft().getLeft() instanceof VariableExpression) {
                exprCastName = "CAST_" + ((VariableExpression) expr.getLeft().getLeft()).getId();
            } else if (expr.getLeft().getLeft() instanceof InvokeExpression) {
                exprCastName = "CAST_" + expr.getLeft().getLeft();
            } else {
                throw new NucleusException("Don't currently support cast of " + expr.getLeft().getLeft());
            }
            expr.getLeft().getLeft().evaluate(this);
            sqlExpr = stack.pop();
            JavaTypeMapping mapping = sqlExpr.getJavaTypeMapping();
            if (mapping instanceof EmbeddedMapping) {
                // Cast of an embedded field, so use same table
                // Extract what we are casting it to
                Literal castLitExpr = (Literal) expr.getLeft().getRight();
                Class castType = resolveClass((String) castLitExpr.getLiteral());
                AbstractClassMetaData castCmd = ec.getMetaDataManager().getMetaDataForClass(castType, clr);
                JavaTypeMapping discMapping = ((EmbeddedMapping) mapping).getDiscriminatorMapping();
                if (discMapping != null) {
                    // Should have a discriminator always when casting this
                    SQLExpression discExpr = exprFactory.newExpression(stmt, sqlExpr.getSQLTable(), discMapping);
                    Object discVal = castCmd.getDiscriminatorValue();
                    SQLExpression discValExpr = exprFactory.newLiteral(stmt, discMapping, discVal);
                    BooleanExpression discRestrictExpr = discExpr.eq(discValExpr);
                    Iterator<String> subclassIter = storeMgr.getSubClassesForClass(castType.getName(), true, clr).iterator();
                    while (subclassIter.hasNext()) {
                        String subclassName = subclassIter.next();
                        AbstractClassMetaData subtypeCmd = storeMgr.getMetaDataManager().getMetaDataForClass(subclassName, clr);
                        discVal = subtypeCmd.getDiscriminatorValue();
                        discValExpr = exprFactory.newLiteral(stmt, discMapping, discVal);
                        BooleanExpression subtypeExpr = discExpr.eq(discValExpr);
                        discRestrictExpr = discRestrictExpr.ior(subtypeExpr);
                    }
                    stmt.whereAnd(discRestrictExpr, true);
                }
                SQLTableMapping tblMapping = new SQLTableMapping(sqlExpr.getSQLTable(), castCmd, sqlExpr.getJavaTypeMapping());
                setSQLTableMappingForAlias(exprCastName, tblMapping);
                SQLTableMapping sqlMapping = getSQLTableMappingForPrimaryExpression(stmt, exprCastName, expr, Boolean.FALSE);
                if (sqlMapping == null) {
                    throw new NucleusException("PrimaryExpression " + expr + " is not yet supported");
                }
                sqlExpr = exprFactory.newExpression(stmt, sqlMapping.table, sqlMapping.mapping);
                stack.push(sqlExpr);
                return sqlExpr;
            }
            // Evaluate the cast
            expr.getLeft().evaluate(this);
            sqlExpr = stack.pop();
            // Extract what we are casting it to
            Literal castLitExpr = (Literal) expr.getLeft().getRight();
            AbstractClassMetaData castCmd = ec.getMetaDataManager().getMetaDataForClass(resolveClass((String) castLitExpr.getLiteral()), clr);
            SQLTableMapping tblMapping = new SQLTableMapping(sqlExpr.getSQLTable(), castCmd, sqlExpr.getJavaTypeMapping());
            setSQLTableMappingForAlias(exprCastName, tblMapping);
            SQLTableMapping sqlMapping = getSQLTableMappingForPrimaryExpression(stmt, exprCastName, expr, Boolean.FALSE);
            if (sqlMapping == null) {
                throw new NucleusException("PrimaryExpression " + expr + " is not yet supported");
            }
            sqlExpr = exprFactory.newExpression(stmt, sqlMapping.table, sqlMapping.mapping);
            stack.push(sqlExpr);
            return sqlExpr;
        } else if (expr.getLeft() instanceof ParameterExpression) {
            // "{paramExpr}.field[.field[.field]]"
            // Need parameter values to process this
            setNotPrecompilable();
            ParameterExpression paramExpr = (ParameterExpression) expr.getLeft();
            Symbol paramSym = compilation.getSymbolTable().getSymbol(paramExpr.getId());
            if (paramSym.getValueType() != null && paramSym.getValueType().isArray()) {
                // Special case : array "methods" (particularly "length")
                String first = expr.getTuples().get(0);
                processParameterExpression(paramExpr, true);
                SQLExpression paramSqlExpr = stack.pop();
                sqlExpr = exprFactory.invokeMethod(stmt, "ARRAY", first, paramSqlExpr, null);
                stack.push(sqlExpr);
                return sqlExpr;
            }
            // Create Literal for the parameter (since we need to perform operations on it)
            processParameterExpression(paramExpr, true);
            SQLExpression paramSqlExpr = stack.pop();
            SQLLiteral lit = (SQLLiteral) paramSqlExpr;
            Object paramValue = lit.getValue();
            List<String> tuples = expr.getTuples();
            Iterator<String> tuplesIter = tuples.iterator();
            Object objValue = paramValue;
            while (tuplesIter.hasNext()) {
                String fieldName = tuplesIter.next();
                if (objValue == null) {
                    NucleusLogger.QUERY.warn(">> Compilation of " + expr + " : need to direct through field \"" + fieldName + "\" on null value, hence not compilable!");
                    // Null value, and we have further path to navigate TODO Handle this "NPE"
                    break;
                }
                objValue = getValueForObjectField(objValue, fieldName);
                // Using literal value of parameter, so cannot precompile it
                setNotPrecompilable();
            }
            if (objValue == null) {
                sqlExpr = exprFactory.newLiteral(stmt, null, null);
                stack.push(sqlExpr);
                return sqlExpr;
            }
            JavaTypeMapping m = exprFactory.getMappingForType(objValue.getClass(), false);
            sqlExpr = exprFactory.newLiteral(stmt, m, objValue);
            stack.push(sqlExpr);
            return sqlExpr;
        } else if (expr.getLeft() instanceof VariableExpression) {
            // "{varExpr}.field[.field[.field]]"
            VariableExpression varExpr = (VariableExpression) expr.getLeft();
            processVariableExpression(varExpr);
            SQLExpression varSqlExpr = stack.pop();
            if (varSqlExpr instanceof UnboundExpression) {
                // Bind as CROSS JOIN for now
                processUnboundExpression((UnboundExpression) varSqlExpr);
                varSqlExpr = stack.pop();
            }
            Class varType = clr.classForName(varSqlExpr.getJavaTypeMapping().getType());
            if (varSqlExpr.getSQLStatement() == stmt.getParentStatement()) {
                // Use parent mapper to get the mapping for this field since it has the table
                SQLTableMapping sqlMapping = parentMapper.getSQLTableMappingForPrimaryExpression(stmt, null, expr, Boolean.FALSE);
                if (sqlMapping == null) {
                    throw new NucleusException("PrimaryExpression " + expr.getId() + " is not yet supported");
                }
                // TODO Cater for the table required to join to not being the primary table of the outer query
                // This should check on
                // getDatastoreAdapter().supportsOption(RDBMSAdapter.ACCESS_PARENTQUERY_IN_SUBQUERY))
                sqlExpr = exprFactory.newExpression(varSqlExpr.getSQLStatement(), sqlMapping.table, sqlMapping.mapping);
                stack.push(sqlExpr);
                return sqlExpr;
            }
            SQLTableMapping varTblMapping = getSQLTableMappingForAlias(varExpr.getId());
            if (varTblMapping == null) {
                throw new NucleusUserException("Variable " + varExpr.getId() + " is not yet bound, so cannot get field " + expr.getId());
            }
            if (varTblMapping.cmd == null) {
                throw new NucleusUserException("Variable " + varExpr.getId() + " of type " + varType.getName() + " cannot evaluate " + expr.getId());
            }
            SQLTableMapping sqlMapping = getSQLTableMappingForPrimaryExpression(varSqlExpr.getSQLStatement(), varExpr.getId(), expr, Boolean.FALSE);
            sqlExpr = exprFactory.newExpression(sqlMapping.table.getSQLStatement(), sqlMapping.table, sqlMapping.mapping);
            stack.push(sqlExpr);
            return sqlExpr;
        } else if (expr.getLeft() instanceof InvokeExpression) {
            InvokeExpression invokeExpr = (InvokeExpression) expr.getLeft();
            SQLExpression invokedSqlExpr = getInvokedSqlExpressionForInvokeExpression(invokeExpr);
            processInvokeExpression(invokeExpr, invokedSqlExpr);
            SQLExpression invokeSqlExpr = stack.pop();
            Table tbl = invokeSqlExpr.getSQLTable().getTable();
            if (expr.getTuples().size() > 1) {
                throw new NucleusUserException("Dont currently support evaluating " + expr.getId() + " on " + invokeSqlExpr);
            }
            SQLTable invokeSqlTbl = invokeSqlExpr.getSQLTable();
            if (invokedSqlExpr.getJavaTypeMapping() instanceof OptionalMapping && invokeExpr.getOperation().equals("get") && expr.getTuples().size() == 1) {
                OptionalMapping opMapping = (OptionalMapping) invokedSqlExpr.getJavaTypeMapping();
                if (opMapping.getWrappedMapping() instanceof PersistableMapping) {
                    // Special case of Optional.get().{field}, so we need to join to the related table
                    AbstractMemberMetaData mmd = invokedSqlExpr.getJavaTypeMapping().getMemberMetaData();
                    AbstractClassMetaData otherCmd = ec.getMetaDataManager().getMetaDataForClass(mmd.getCollection().getElementType(), clr);
                    Table otherTbl = storeMgr.getDatastoreClass(otherCmd.getFullClassName(), clr);
                    // Optional type so do LEFT OUTER JOIN since if it is null then we would eliminate all other results
                    invokeSqlTbl = stmt.join(JoinType.LEFT_OUTER_JOIN, invokeSqlExpr.getSQLTable(), opMapping.getWrappedMapping(), otherTbl, null, otherTbl.getIdMapping(), null, null, true);
                    tbl = invokeSqlTbl.getTable();
                }
            }
            if (tbl instanceof DatastoreClass) {
                // Table of a class, so assume to have field in the table of the class
                // TODO Allow joins to superclasses if required
                JavaTypeMapping mapping = ((DatastoreClass) tbl).getMemberMapping(expr.getId());
                if (mapping == null) {
                    throw new NucleusUserException("Dont currently support evaluating " + expr.getId() + " on " + invokeSqlExpr + ". The field " + expr.getId() + " doesnt exist in table " + tbl);
                }
                sqlExpr = exprFactory.newExpression(stmt, invokeSqlTbl, mapping);
                stack.push(sqlExpr);
                return sqlExpr;
            } else if (tbl instanceof JoinTable) {
                if (invokeSqlExpr.getJavaTypeMapping() instanceof EmbeddedMapping) {
                    // Table containing an embedded element/key/value so assume we have a column in the join table
                    EmbeddedMapping embMapping = (EmbeddedMapping) invokeSqlExpr.getJavaTypeMapping();
                    JavaTypeMapping mapping = embMapping.getJavaTypeMapping(expr.getId());
                    if (mapping == null) {
                        throw new NucleusUserException("Dont currently support evaluating " + expr.getId() + " on " + invokeSqlExpr + ". The field " + expr.getId() + " doesnt exist in table " + tbl);
                    }
                    sqlExpr = exprFactory.newExpression(stmt, invokeSqlTbl, mapping);
                    stack.push(sqlExpr);
                    return sqlExpr;
                }
            }
            throw new NucleusUserException("Dont currently support evaluating " + expr.getId() + " on " + invokeSqlExpr + " with invoke having table of " + tbl);
        } else {
            throw new NucleusUserException("Dont currently support PrimaryExpression with 'left' of " + expr.getLeft());
        }
    }
    // Real primary expression ("field.field", "alias.field.field" etc)
    SQLTableMapping sqlMapping = getSQLTableMappingForPrimaryExpression(stmt, null, expr, null);
    if (sqlMapping == null) {
        throw new NucleusException("PrimaryExpression " + expr.getId() + " is not yet supported");
    }
    sqlExpr = exprFactory.newExpression(stmt, sqlMapping.table, sqlMapping.mapping);
    if (sqlMapping.mmd != null && sqlExpr instanceof MapExpression) {
        // This sqlMapping is for something joined in a FROM clause, so set the alias on the returned MapExpression to avoid doing the same joins
        String alias = getAliasForSQLTableMapping(sqlMapping);
        if (alias == null && parentMapper != null) {
            alias = parentMapper.getAliasForSQLTableMapping(sqlMapping);
        }
        ((MapExpression) sqlExpr).setAliasForMapTable(alias);
    }
    stack.push(sqlExpr);
    return sqlExpr;
}

Example 19 with JavaTypeMapping

use of org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping in project datanucleus-rdbms by datanucleus.

the class QueryToSQLMapper method getInvokedSqlExpressionForInvokeExpression.

protected SQLExpression getInvokedSqlExpressionForInvokeExpression(InvokeExpression expr) {
    Expression invokedExpr = expr.getLeft();
    SQLExpression invokedSqlExpr = null;
    if (invokedExpr == null) {
    // Static method
    } else if (invokedExpr instanceof PrimaryExpression) {
        processPrimaryExpression((PrimaryExpression) invokedExpr);
        invokedSqlExpr = stack.pop();
    } else if (invokedExpr instanceof Literal) {
        processLiteral((Literal) invokedExpr);
        invokedSqlExpr = stack.pop();
    } else if (invokedExpr instanceof ParameterExpression) {
        // TODO May be needed to set the second parameter to "false" here and then if the method
        // being invoked needs the parameters as a normal SQLLiteral then allow it to convert it itself
        processParameterExpression((ParameterExpression) invokedExpr, true);
        invokedSqlExpr = stack.pop();
    } else if (invokedExpr instanceof InvokeExpression) {
        processInvokeExpression((InvokeExpression) invokedExpr);
        invokedSqlExpr = stack.pop();
    } else if (invokedExpr instanceof VariableExpression) {
        processVariableExpression((VariableExpression) invokedExpr);
        invokedSqlExpr = stack.pop();
    } else if (invokedExpr instanceof ArrayExpression) {
        ArrayExpression arrExpr = (ArrayExpression) invokedExpr;
        SQLExpression[] arrSqlExprs = new SQLExpression[arrExpr.getArraySize()];
        for (int i = 0; i < arrExpr.getArraySize(); i++) {
            Expression arrElemExpr = arrExpr.getElement(i);
            arrElemExpr.evaluate(this);
            arrSqlExprs[i] = stack.pop();
        }
        JavaTypeMapping m = exprFactory.getMappingForType(Object[].class, false);
        invokedSqlExpr = new org.datanucleus.store.rdbms.sql.expression.ArrayExpression(stmt, m, arrSqlExprs);
    } else if (invokedExpr instanceof DyadicExpression) {
        DyadicExpression dyExpr = (DyadicExpression) invokedExpr;
        dyExpr.evaluate(this);
        invokedSqlExpr = stack.pop();
    } else {
        throw new NucleusException("Dont currently support invoke expression " + invokedExpr);
    }
    return invokedSqlExpr;
}

Example 20 with JavaTypeMapping

use of org.datanucleus.store.rdbms.mapping.java.JavaTypeMapping in project datanucleus-rdbms by datanucleus.

the class QueryToSQLMapper method processParameterExpression.

/**
 * Method to process a parameter expression.
 * The optional argument controls whether we should create this as a parameter or as a literal (i.e the param value is known etc).
 * If the parameter doesn't have its value defined then returns ParameterLiteral otherwise we get an XXXLiteral of the (declared) type of the parameter
 * @param expr The ParameterExpression
 * @param asLiteral Whether to create a SQLLiteral rather than a parameter literal
 * @return The processed expression
 */
protected Object processParameterExpression(ParameterExpression expr, boolean asLiteral) {
    if (compileComponent == CompilationComponent.ORDERING || compileComponent == CompilationComponent.RESULT) {
        // All JDBC drivers I know don't allow parameters in the order-by, or update clause
        // Note that we also don't allow parameters in result clause since SQLStatement squashes all SELECT expression to a String so losing info about params
        asLiteral = true;
    } else if (compileComponent == CompilationComponent.UPDATE && processingCase && !storeMgr.getDatastoreAdapter().supportsOption(DatastoreAdapter.PARAMETER_IN_CASE_IN_UPDATE_CLAUSE)) {
        // This database doesn't support parameters within a CASE expression in the UPDATE clause, so process as a literal
        asLiteral = true;
    }
    if (expr.getPosition() >= 0) {
        if (paramNameByPosition == null) {
            paramNameByPosition = new HashMap<>();
        }
        paramNameByPosition.put(Integer.valueOf(expr.getPosition()), expr.getId());
    }
    // Find the parameter value if supplied
    Object paramValue = null;
    boolean paramValueSet = false;
    if (parameters != null && parameters.size() > 0) {
        // Check if the parameter has a value
        if (parameters.containsKey(expr.getId())) {
            // Named parameter
            paramValue = parameters.get(expr.getId());
            paramValueSet = true;
        } else if (parameterValueByName != null && parameterValueByName.containsKey(expr.getId())) {
            // Positional parameter, but already encountered
            paramValue = parameterValueByName.get(expr.getId());
            paramValueSet = true;
        } else {
            // Positional parameter, not yet encountered
            int position = positionalParamNumber;
            if (positionalParamNumber < 0) {
                position = 0;
            }
            if (parameters.containsKey(Integer.valueOf(position))) {
                paramValue = parameters.get(Integer.valueOf(position));
                paramValueSet = true;
                positionalParamNumber = position + 1;
                if (parameterValueByName == null) {
                    parameterValueByName = new HashMap<>();
                }
                parameterValueByName.put(expr.getId(), paramValue);
            }
        }
    }
    // Find the type to use for the parameter
    JavaTypeMapping m = paramMappingForName.get(expr.getId());
    if (m == null) {
        // Try to determine from provided parameter value or from symbol table (declared type)
        if (paramValue != null) {
            if (!storeMgr.getMetaDataManager().isClassPersistable(paramValue.getClass().getName()) && !paramValue.getClass().isArray() && !paramValue.getClass().isInterface() && !Collection.class.isAssignableFrom(paramValue.getClass()) && !Map.class.isAssignableFrom(paramValue.getClass()) && !storeMgr.getNucleusContext().getTypeManager().isSupportedSecondClassType(paramValue.getClass().getName())) {
                // Test for this being the "id" of a persistable object
                // Persistable/array/interface/collection/map/simple cannot be an object "id"
                String className = storeMgr.getClassNameForObjectID(paramValue, clr, ec);
                if (className != null) {
                    // Identity for persistable class
                    AbstractClassMetaData cmd = storeMgr.getMetaDataManager().getMetaDataForClass(className, clr);
                    if (cmd.getIdentityType() == IdentityType.APPLICATION) {
                        Class cls = clr.classForName(className);
                        m = exprFactory.getMappingForType(cls, false);
                        m = new PersistableIdMapping((PersistableMapping) m);
                    }
                }
            }
            if (m == null) {
                // Use the type of the input parameter value
                try {
                    m = exprFactory.getMappingForType(paramValue.getClass(), false);
                    if (m instanceof TypeConverterMapping && expr.getSymbol().getValueType() != null && expr.getSymbol().getValueType() != m.getJavaType()) {
                        // This is because if we have a parameter of type "ZoneInfo" it needs to use TimeZone since we have the TypeConverter for that
                        try {
                            m = exprFactory.getMappingForType(expr.getSymbol().getValueType(), false);
                        } catch (NucleusUserException nue) {
                        }
                    }
                } catch (NucleusUserException nue) {
                    // Maybe it needs a TypeConverter so try with the (declared) symbol type of this parameter
                    m = exprFactory.getMappingForType(expr.getSymbol().getValueType(), false);
                }
            }
            if (expr.getSymbol() != null && expr.getSymbol().getValueType() != null) {
                if (!QueryUtils.queryParameterTypesAreCompatible(expr.getSymbol().getValueType(), paramValue.getClass())) {
                    throw new QueryCompilerSyntaxException(Localiser.msg("021118", expr.getId(), expr.getSymbol().getValueType().getName(), paramValue.getClass().getName()));
                }
                if (expr.getSymbol().getValueType() != paramValue.getClass()) {
                    // Mark as not precompilable since the supplied type implies a subclass of the declared type
                    setNotPrecompilable();
                }
            }
        } else if (expr.getSymbol() != null && expr.getSymbol().getValueType() != null) {
            Class valueType = expr.getSymbol().getValueType();
            if (!paramValueSet) {
                if (valueType.isInterface()) {
                    // Special case where we have an interface parameter (not set), and don't know the type, so we pick the first implementation just to get something that works
                    // This is recompiled when the parameter is provided so is just for use in "compile()"
                    String[] implNames = storeMgr.getMetaDataManager().getClassesImplementingInterface(valueType.getName(), clr);
                    if (implNames != null && implNames.length > 0) {
                        valueType = clr.classForName(implNames[0]);
                        setNotPrecompilable();
                    }
                }
            }
            // Use the declared type of the parameter (explicit params)
            m = exprFactory.getMappingForType(valueType, false);
        }
    }
    if (asLiteral && m != null && !m.representableAsStringLiteralInStatement()) {
        // Must keep this as a parameter since its String form is no good in statements
        asLiteral = false;
    }
    if (asLiteral) {
        // Parameter being represented as a literal (for whatever reason), so no longer precompilable
        if (isPrecompilable()) {
            NucleusLogger.QUERY.debug("Parameter " + expr + " is being resolved as a literal, so the query is no longer precompilable");
        }
        setNotPrecompilable();
    } else if (paramValue == null && expr.getSymbol() != null) {
        if (isPrecompilable()) {
            NucleusLogger.QUERY.debug("Parameter " + expr + " is set to null so this has to be resolved as a NullLiteral, and the query is no longer precompilable");
        }
        setNotPrecompilable();
    }
    // Create the SQLExpression for this parameter, either as value-literal or as parameter-literal
    SQLExpression sqlExpr = null;
    if (paramValueSet && paramValue == null && options.contains(OPTION_NULL_PARAM_USE_IS_NULL)) {
        // Value is set to null, but we enforce a NullLiteral for the case of null comparisons e.g we don't want "field = ?", but instead "field IS NULL"
        sqlExpr = exprFactory.newLiteral(stmt, null, null);
    } else if (asLiteral) {
        // Create a value-literal as requested
        sqlExpr = exprFactory.newLiteral(stmt, m, paramValue);
    } else {
        // Create a parameter-literal with it tied to the parameter name for later replacement in the statement
        sqlExpr = exprFactory.newLiteralParameter(stmt, m, paramValue, expr.getId());
        if (sqlExpr instanceof ParameterLiteral) {
            ((ParameterLiteral) sqlExpr).setName(expr.getId());
        }
        if (expressionForParameter == null) {
            expressionForParameter = new HashMap<>();
        }
        expressionForParameter.put(expr.getId(), sqlExpr);
        paramMappingForName.put(expr.getId(), m);
    }
    stack.push(sqlExpr);
    return sqlExpr;
}