Spring data enum

May 08, 2020 · First , let’s look at the default one – Mapping Json attribute to an Enum name. The above rest service maps incoming Json requests to an Employee model object. The mapping is done automatically by Spring under the hoods. It just takes a name and a Department Enum. The enum has three possible values for department. The Post entity has a status attribute which is an Enum, represented by the PostStatus type. 1 2 3 4 5 public enum PostStatus { PENDING, APPROVED, SPAM } In JPA, Enum types must be marked with the @Enumerated annotation, which can take an EnumType defining if the Java Enumeration is mapped to either a String or an Integer column type.In my previous article, we have discussed Java generics best practices . 1. Use enums instead of int constants. An enum type is a special data type that enables for a variable to be a set of predefined constants. The variable must be equal to one of the values that have been predefined for it. Common examples include compass directions (values ... 1 Answer. Sorted by: 8. You need to add @Enumerated annotation on the enum field. @Enumerated (EnumType.STRING) @Column (name="resourceType") private ResourceType type; Few other things: 1.Add @Column annotation on the name field. @Column (name="name") private String name; Improvement on the ResourceType class:May 08, 2020 · First , let’s look at the default one – Mapping Json attribute to an Enum name. The above rest service maps incoming Json requests to an Employee model object. The mapping is done automatically by Spring under the hoods. It just takes a name and a Department Enum. The enum has three possible values for department. Spring Data JPA Specifications is yet another tool at our disposal to perform database queries with Spring or Spring Boot. Specifications are built on top of the Criteria API. When building a Criteria query we are required to build and manage Root, CriteraQuery, and CriteriaBuilder objects by ourselves: ...automatically convert a field of a JPA Entity which is an Enum to be written to the database as a String retrieving the varchar field and mapping automatically to an Enum field of the JPA Entity...Spring Data/JPA Enum Mapping · GitHub. Instantly share code, notes, and snippets. Aug 07, 2022 · Spring REST API result sorting implementation using enum Nowadays the REST API is a standard for web applications. To make the web application more responsive processing of the data should be... octoprint connection Mar 11, 2015 · Spring Data Mongodb can serialize enum into string using enum's name as value. Let's say, it uses the second approach from the article http://www.vineetmanohar.com/2010/01/3-ways-to-serialize-java-enums/. IMHO this can't be taken seriously, because the only correct way to store enums in the database is the approach #3 from the same article, let me cite it: "This approach involves assigning a an explicit user defined value to each enum constant and defining a toValue () and fromValue ... The Post entity has a status attribute which is an Enum, represented by the PostStatus type. 1 2 3 4 5 public enum PostStatus { PENDING, APPROVED, SPAM } In JPA, Enum types must be marked with the @Enumerated annotation, which can take an EnumType defining if the Java Enumeration is mapped to either a String or an Integer column type.How are Spring Data repositories implemented by Spring at runtime. For a Spring Data repository a JDK dynamic proxy is created which intercepts all calls to the repository. The default behavior is to route calls to the default repository implementation, which in Spring Data JPA is the SimpleJpaRepository class. What is @Query used forSpring Data JPA interface repository was created to return this entity from a database. The app exposes REST APIs and for simplicity, each API returns a list of responses. To obtain data all APIs call methods in the repository interface and then returns it. Before returning, as a good practice, each entity is converted to a DTO.In this tutorial, we will learn how to use the Spring Data CrudRepository interface provided the findAll () method with an example. As the name depicts, the findAll () method allows us to get or retrieve all the entities from the database table. It belongs to the CrudRepository interface defined by Spring Data.Solution: JPA and Hibernate provide 2 standard options to map an Enum to a database column. You can either use its String representation or its ordinal value. The String representation is verbose, and the renaming of an enum value requires you to also update your database. The ordinal of an enum value is its position in the enum declaration.May 19, 2015, Spring Data JPA takes the concept of a specification from Eric Evans' book "Domain Driven Design", following the same semantics and providing an API to define such specifications using the JPA criteria API. To support specifications you can extend your repository interface with the JpaSpecificationExecutor interface.This educational video was created for use in LaunchCode's in-person training programs. LaunchCode is unable to respond to comments on these videos or suppor...Furthermore, since we added the annotation @Enumerated (EnumType.STRING), Spring Data will save the name of the entity in the database (look, we put a VARCHAR column). If you prefer, you could use EnumType.ORDINAL and Spring Data will save the ordinal value of the entity (1,2,3,etc..), so change the column to accept a numeric value. That's it! TagsSpring Data JPA allows manually defining the query to be executed by a repository method using the @Query annotation. Unfortunately parameter binding in JPQL is quite limited only allowing you to set a value and providing some type conversion. The latest Spring Data JPA M1 release of the Evans release train eases this pain by adding support.In my previous article, we have discussed Java generics best practices . 1. Use enums instead of int constants. An enum type is a special data type that enables for a variable to be a set of predefined constants. The variable must be equal to one of the values that have been predefined for it. Common examples include compass directions (values ... Furthermore, since we added the annotation @Enumerated (EnumType.STRING), Spring Data will save the name of the entity in the database (look, we put a VARCHAR column). If you prefer, you could use EnumType.ORDINAL and Spring Data will save the ordinal value of the entity (1,2,3,etc..), so change the column to accept a numeric value. That's it! Tags types of window valances Feb 10, 2022 · 1- create new class with the required name, then put all the enums 3 public enum ResourceType { 4 FINANCIAL,RAW,FACTORY,LAB 5 } 6 7 2-Next, in the entity : 8 @Enumerated(EnumType.STRING) 9 @Column(name="resourceType") 10 private ResourceType type; 11 12 Add a Grepper Answer Answers related to “enum type spring boot entity” java enum java enums Spring Data/JPA Enum Mapping · GitHub. Instantly share code, notes, and snippets. In this quick tutorial, we'll show how to use enums as web request parameters in Spring MVC. 2. Use Enums as Request Parameters. Let's first define an enum for our examples: public enum Modes { ALPHA, BETA; } We can then use this enum as a RequestParameter in a Spring controller: @GetMapping ( "/mode2str" ) public String getStringToMode ...Aug 26, 2019 · According to documentation Spring Data JDBC only allows converting enums to string out of the box. So I tried a workaround with custom converters. I created a custom converter with @ReadingConverter and could read/convert properly to my enum value according to the integer on my table. In this guide to Java enum with string values, learn to create enum using strings, iterate over all enum values, get enum value and perform a reverse lookup to find enum by string parameter. We should always create enum when we have a fixed set of related constants. Enums are inherently singleton so they provide a better performance.Spring framework is a popular open-source framework developing applications in java. Enum is a java enumeration keyword introduced in java 5 features. In the Spring configuration file, we will inject different custom classes as well as predefined classes like Integer, String. How to Inject Enum in Spring IOC container? Copy. var d int = 6 season := Spring season = d. When using Season type, to make this code run without any error, you need to explicitly convert the d variable, so it is not possible to do it by accident: Copy. var d int = 6 season := Spring season = Season(d) Also, a custom type of enum makes the code cleaner. For example, declaring the function.May 17, 2018 · Following example shows how to use Java Enums with @RequestParam to map query values to parameters of Enum type. If we want to use enum constants as query param keys, then we can use MultiValueMap, but Spring does not convert String parameter key to enum in that case. We have to manually convert String key to the target enum constant. the auto parts shop Overview. Learn. Spring Data’s mission is to provide a familiar and consistent, Spring-based programming model for data access while still retaining the special traits of the underlying data store. It makes it easy to use data access technologies, relational and non-relational databases, map-reduce frameworks, and cloud-based data services. Tipe data ENUM merupakan tipe data yang khusus untuk kolom dimana nilai datanya sudah kita tentukan sebelumnya. Pilihan ini dapat berisi 1 sampai dengan 65,535 pilihan string. Dimana kolom yang didefinisikan sebagai ENUM hanya dapat memilih satu diantara pilihan string yang tersedia.Nullable enums. A nullable enum can be defined as follows: type: string nullable: true # <--- enum: - asc - desc - null # <--- without quotes, i.e. null not "null" Note that null must be explicitly included in the list of enum values. Using nullable: true alone is not enough here. Reusable enums public enum RestaurantCategory { STREET_FOOD, SUSHI, PIZZA, BURGER } Advertisement. Answer. ... 108 Questions mysql 98 Questions regex 95 Questions selenium 111 Questions spring 709 Questions spring-boot 713 Questions spring-data-jpa 93 Questions spring-mvc 114 Questions string 158 Questions swing 175 Questions xml 86 Questions ...To create a reactive Spring Boot application, we'll use Spring Initializr. The application that we'll create uses: Spring Boot 2.7.3. The following dependencies: Spring Reactive Web (also known as Spring WebFlux) and Spring Data R2DBC. Generate the application by using Spring Initializr. Generate the application on the command line by entering:Overview. Learn. Spring Data’s mission is to provide a familiar and consistent, Spring-based programming model for data access while still retaining the special traits of the underlying data store. It makes it easy to use data access technologies, relational and non-relational databases, map-reduce frameworks, and cloud-based data services. Mar 05, 2020 · 5. Validating That a String Matches a Value of an Enum. Instead of validating an enum to match a String, we could also do the opposite. For this, we can create an annotation that checks if the String is valid for a specific enum. This annotation can be added to a String field and we can pass any enum class. As you see, We have included the Branch object itself instead of "branch_id". And we also marked this object field as @ManyToOne. By using this annotation, we are letting Spring Data JPA know that this is a join with a many to one relationship. So when JPA evaluates this, it will find and map the entire branch object instead of just the ... pcmflash without dongle Overview. Learn. Spring Data’s mission is to provide a familiar and consistent, Spring-based programming model for data access while still retaining the special traits of the underlying data store. It makes it easy to use data access technologies, relational and non-relational databases, map-reduce frameworks, and cloud-based data services. Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows: for (RedisFlushMode c : RedisFlushMode.values ()) System.out.println (c); Returns: an array containing the constants of this enum type, in the order they are declared valueOfThere are many ways to inject the enum object in the spring framework. one way, is to inject the enum single value using enum Property as described in the below screenshot. spring property editors are internally assigned the correct value to enum property. the second approach is to inject using factory-method as in the below screenshot. KING; } You should always use enums when a variable (especially a method parameter) can only take one out of a small set of possible values. Examples would be things like type constants (contract status: "permanent", "temp", "apprentice"), or flags ("execute now", "defer execution"). If you use enums instead of integers (or ...In my previous article, we have discussed Java generics best practices . 1. Use enums instead of int constants. An enum type is a special data type that enables for a variable to be a set of predefined constants. The variable must be equal to one of the values that have been predefined for it. Common examples include compass directions (values ... Apr 15, 2022 · The only thing we need to do here is to autowire the ConversionService provided by Spring and call the convert () method. The first argument is the value that we want to convert and the second argument is the target type that we want to convert to. Apart from this String to Integer example, there're a lot of various other combinations available ... Use the @Enumerated annotation: @Enumerated(EnumType.STRING) private InvoiceStateEnum state; Enum Types. ORDINAL: Persist enumerated type property or field as an integer. In this quick tutorial, we'll show how to use enums as web request parameters in Spring MVC. 2. Use Enums as Request Parameters. Let's first define an enum for our examples: public enum Modes { ALPHA, BETA; } We can then use this enum as a RequestParameter in a Spring controller: @GetMapping ( "/mode2str" ) public String getStringToMode ...Spring Data JPA Specifications is yet another tool at our disposal to perform database queries with Spring or Spring Boot. Specifications are built on top of the Criteria API. When building a Criteria query we are required to build and manage Root, CriteraQuery, and CriteriaBuilder objects by ourselves: ...There are many ways to inject the enum object in the spring framework. one way, is to inject the enum single value using enum Property as described in the below screenshot. spring property editors are internally assigned the correct value to enum property. the second approach is to inject using factory-method as in the below screenshot. pelonis oscillating fankonka service centerMay 15, 2021 · Spring Data JPA Enum converter Column 使用 NUMBER 型別,如何在 JPA 中用 Enum 做 mapping,且不使用 @Enumerated(EnumType.ORDINAL) CREATE TABLE CHALLENGE_LOG ( ACTION NUMBER ( 1 ) NOT NULL ); COMMENT ON COLUMN CHALLENGE_LOG.ACTION IS ' 0=Send OTP, 1=Verify OTP ' ; Jun 08, 2020 · Create a Stream out of the values of the enum Season. Add backticks around the name of each enum value so that it is shown as a literal in the documentation. Join all enum names with a `, ` string to have a nicely formatted list of comma separated names. The generated HTML will look exactly the same, but now it will be automatically up-to-date ... May 08, 2020 · First , let’s look at the default one – Mapping Json attribute to an Enum name. The above rest service maps incoming Json requests to an Employee model object. The mapping is done automatically by Spring under the hoods. It just takes a name and a Department Enum. The enum has three possible values for department. The Spring Data Repositories need to know about the Entity and the ID fields they will deal with. This information is provided in the repository declaration. Usually, each Entity will have its dedicated Repository. @Repository public interface DogsRepository extends CrudRepository<Dog, Long> { Dog findDistinctFirstByAge(int age) ; }Saving ENUM in spring data elasticsearch. 1318. August 04, 2017, at 09:24 AM. I am trying to save my entity in elasticsearch using spring data elasticsearch, all the attributes are saved (including objects) except for enum its always stored as null, this is my entityUsing an Enum in an Angular Component. After creating the enum, we need to create a field in the component where we want to use this enum and assign it to the field: 1. tokenStatus = TokenStatus; Then, create a new field of type TokenStatus to hold the current status of the token: 1. status : TokenStatus; Then, assign a value to the status field,To begin with, we know that an enum type is a special data type. It enables a variable to be a set of predefined constants. Let's define an enum for direction: public enum Direction { EAST, WEST, SOUTH, NORTH; } The name of the enum value is constant. So for instance, the name of Direction.EAST is EAST. Now we can search the direction by its name.Saving ENUM in spring data elasticsearch. 1318. August 04, 2017, at 09:24 AM. Mar 05, 2020 · 5. Validating That a String Matches a Value of an Enum. Instead of validating an enum to match a String, we could also do the opposite. For this, we can create an annotation that checks if the String is valid for a specific enum. This annotation can be added to a String field and we can pass any enum class. May 08, 2020 · First , let’s look at the default one – Mapping Json attribute to an Enum name. The above rest service maps incoming Json requests to an Employee model object. The mapping is done automatically by Spring under the hoods. It just takes a name and a Department Enum. The enum has three possible values for department. At runtime, Spring Data JPA will create your repository implementations with the common CRUD methods. You can then perform CRUD operations without writing a single line of data access code. But by saying so, E nterprise Applications developed using the Spring Framework often needs to execute complex queries against the database.Mar 05, 2020 · 5. Validating That a String Matches a Value of an Enum. Instead of validating an enum to match a String, we could also do the opposite. For this, we can create an annotation that checks if the String is valid for a specific enum. This annotation can be added to a String field and we can pass any enum class. taylor and chance Furthermore, since we added the annotation @Enumerated (EnumType.STRING), Spring Data will save the name of the entity in the database (look, we put a VARCHAR column). If you prefer, you could use EnumType.ORDINAL and Spring Data will save the ordinal value of the entity (1,2,3,etc..), so change the column to accept a numeric value. That's it! TagsIn this quick tutorial, we'll show how to use enums as web request parameters in Spring MVC. 2. Use Enums as Request Parameters. Let's first define an enum for our examples: public enum Modes { ALPHA, BETA; } We can then use this enum as a RequestParameter in a Spring controller: @GetMapping ( "/mode2str" ) public String getStringToMode ...Mar 11, 2015 · Spring Data Mongodb can serialize enum into string using enum's name as value. Let's say, it uses the second approach from the article http://www.vineetmanohar.com/2010/01/3-ways-to-serialize-java-enums/. IMHO this can't be taken seriously, because the only correct way to store enums in the database is the approach #3 from the same article, let me cite it: "This approach involves assigning a an explicit user defined value to each enum constant and defining a toValue () and fromValue ... How are Spring Data repositories implemented by Spring at runtime. For a Spring Data repository a JDK dynamic proxy is created which intercepts all calls to the repository. The default behavior is to route calls to the default repository implementation, which in Spring Data JPA is the SimpleJpaRepository class. What is @Query used forname - the name of the enum constant to be returned. Returns: the enum constant with the specified name Throws: IllegalArgumentException - if this enum type has no constant with the specified name NullPointerException - if the argument is null; value public int value()Use visual designers and rich code generation capabilities to make it easier to work with Hibernate, EclipseLink, Spring Data JPA. It can sometimes be desirable to have a Java enum type to represent a particular column in a database. JPA supports converting database data to and from Java enum types via the @javax.persistence.Enumerated ...Spring Data FrameworkThe extension or use of template scaffolding, ... enums: enum class configuration. repository: repository interface rules and main implementation. cdi: CDI implemented using dependency injection, without depending on spring the case of injection, the injection may be used. diablo immortal reddit 2022 May 25, 2020 · convertToEntityAttribute: to convert the data arriving from database (only those data mapped in the entities with the EnItemType enumeration) to the right enum value The End of the Story No changes to the enum's are made, this is the default option. true With this option enabled, each enum will have a new case, 'unknown_default_open_api', so that when the enum case sent by the server is not known by the client/spec, can safely be decoded to this case. false: fullJavaUtil: whether to use fully qualified name for classes under ...5. In this article, I'm going to explain how we can build a REST API using JPA, Hibernate, and MySQL in Spring Boot. Here JPA (Java Persistence API) used to access, manage, and persist data between java and relational database while hibernate is doing the ORM (Object Relational Mapping) part. So basically JPA is the dance, Hibernate is the ...Download ZIP. Spring Data/JPA Enum Mapping. Raw. import org.springframework.data.jpa.repository.JpaRepository; import com.cloudfoundry.tothought.entities.Test5. Now, we want to map the event database table to the following Event JPA entity: To map the PostgreSQL array column types to Java arrays, you need a custom Hibernate type since the built-in types don't support persisting database ...With @Enumerated (EnumType.STRING), we can safely add new enum values or change our enum's order. However, renaming an enum value will still break the database data. Additionally, even though this data representation is far more readable compared to the @Enumerated (EnumType.ORDINAL) option, it also consumes a lot more space than necessary.Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows: for (RedisFlushMode c : RedisFlushMode.values ()) System.out.println (c); Returns: an array containing the constants of this enum type, in the order they are declared valueOfIn this tutorial, we will learn how to use the Spring Data CrudRepository interface provided the findAll () method with an example. As the name depicts, the findAll () method allows us to get or retrieve all the entities from the database table. It belongs to the CrudRepository interface defined by Spring Data.First scenario: We want to search for the list of all insurances that are still active. (not archived) So what we need to do is to query based on the value of property insuranceStatus while it's ...In this quick tutorial, we'll show how to use enums as web request parameters in Spring MVC. 2. Use Enums as Request Parameters. Let's first define an enum for our examples: public enum Modes { ALPHA, BETA; } We can then use this enum as a RequestParameter in a Spring controller: @GetMapping ( "/mode2str" ) public String getStringToMode ...Download ZIP. Spring Data/JPA Enum Mapping. Raw. import org.springframework.data.jpa.repository.JpaRepository; import com.cloudfoundry.tothought.entities.Test5. Now, we want to map the event database table to the following Event JPA entity: To map the PostgreSQL array column types to Java arrays, you need a custom Hibernate type since the built-in types don't support persisting database ...The Spring Data Repositories need to know about the Entity and the ID fields they will deal with. This information is provided in the repository declaration. Usually, each Entity will have its dedicated Repository. @Repository public interface DogsRepository extends CrudRepository<Dog, Long> { Dog findDistinctFirstByAge(int age) ; }No changes to the enum's are made, this is the default option. true With this option enabled, each enum will have a new case, 'unknown_default_open_api', so that when the enum case sent by the server is not known by the client/spec, can safely be decoded to this case. false: fullJavaUtil: whether to use fully qualified name for classes under ...Mar 11, 2015 · Spring Data Mongodb can serialize enum into string using enum's name as value. Let's say, it uses the second approach from the article http://www.vineetmanohar.com/2010/01/3-ways-to-serialize-java-enums/. IMHO this can't be taken seriously, because the only correct way to store enums in the database is the approach #3 from the same article, let me cite it: "This approach involves assigning a an explicit user defined value to each enum constant and defining a toValue () and fromValue ... Add the following code to the controller class to specify the different endpoints to fetch the data from the database. ProductController.java 4. Run the Application To execute the application, right-click on the SpringDataJpaAuditingApplication.java class, Run As -> Java Application. Fig. 2: Run the Application 5. Project DemoSpring provides out-of-the-box various converters for built-in types; this means converting to/from basic types like String, Integer, Boolean and a number of other types. Apart from this, Spring also provides a solid type conversion SPI for developing our custom converters. 2. Built-in Converters london ohio community poolThe problem of searching and filtering is trivial to all modern day applications and the Spring Data JPA Specification provides a neat and elegant way to create dynamic queries.This C# enum method converts a specified value of a specific enumerated list to another equivalent data type, usually a string. It takes three parameters as arguments, type, object, and format. The first argument, type, is enum type of the value to convert. The second argument, object, is the value to convert. The third argument, format, is the ...In this guide to Java enum with string values, learn to create enum using strings, iterate over all enum values, get enum value and perform a reverse lookup to find enum by string parameter. We should always create enum when we have a fixed set of related constants. Enums are inherently singleton so they provide a better performance.May 08, 2020 · First , let’s look at the default one – Mapping Json attribute to an Enum name. The above rest service maps incoming Json requests to an Employee model object. The mapping is done automatically by Spring under the hoods. It just takes a name and a Department Enum. The enum has three possible values for department. Aug 24, 2017 · Furthermore, since we added the annotation @Enumerated (EnumType.STRING), Spring Data will save the name of the entity in the database (look, we put a VARCHAR column). If you prefer, you could use EnumType.ORDINAL and Spring Data will save the ordinal value of the entity (1,2,3,etc..), so change the column to accept a numeric value. That’s it! Tags csi platypus priceHence, the easy way is to register some custom editors in Spring which will convert those Strings to enums as request parameter. Now let us see how we can achieve it in spring.We will be exposing a REST endpoint which accepts type of question in the path parameter and return response based on the question type.Aug 18, 2022 · Spring can try to convert this String object to an Enum object by using its StringToEnumConverterFactory class. The back-end conversion uses the Enum.valueOf method. Therefore, the input name string must exactly match one of the declared enum values. An enum type is a special data type that enable for a variable to be a set of predefined constants. The variable must be equal to one of the values that have been predefined for it. Common examples include compass directions (values of NORTH, SOUTH, EAST, and WEST) and the days of the week. Spring Data JPA, 2.7.2, Overview, Learn, Support, Samples, Spring Data JPA, part of the larger Spring Data family, makes it easy to easily implement JPA based repositories. This module deals with enhanced support for JPA based data access layers. It makes it easier to build Spring-powered applications that use data access technologies.Download ZIP. Spring Data/JPA Enum Mapping. Raw. import org.springframework.data.jpa.repository.JpaRepository; import com.cloudfoundry.tothought.entities.Test5. Now, we want to map the event database table to the following Event JPA entity: To map the PostgreSQL array column types to Java arrays, you need a custom Hibernate type since the built-in types don't support persisting database ...To begin with, we know that an enum type is a special data type. It enables a variable to be a set of predefined constants. Let's define an enum for direction: public enum Direction { EAST, WEST, SOUTH, NORTH; } The name of the enum value is constant. So for instance, the name of Direction.EAST is EAST. Now we can search the direction by its name.Mar 11, 2015 · Spring Data Mongodb can serialize enum into string using enum's name as value. Let's say, it uses the second approach from the article http://www.vineetmanohar.com/2010/01/3-ways-to-serialize-java-enums/. IMHO this can't be taken seriously, because the only correct way to store enums in the database is the approach #3 from the same article, let me cite it: "This approach involves assigning a an explicit user defined value to each enum constant and defining a toValue () and fromValue ... Spring Data JDBCの特徴. 今までもSpring Dataには、Javaアプリケーションで最もよく使われるRDBへの永続化APIであるJPAに対応するモジュールが公開されていました。. 新たにリリースされたSpring Data JDBCは、JPAよりもシンプルで分かりやすいモジュールとして公開され ...Spring provides all the boilerplate code that's required to start, commit, or rollback a transaction. It also integrates with Hibernate's and JPA's transaction handling. If you're using Spring Boot, this reduces your effort to a @Transactional annotation on each interface, method, or class that shall be executed within a transactional context.spring.data.rest.enable-enum-translation. Whether to enable enum value translation through the Spring Data REST default resource bundle. spring.data.rest.limit-param-name. Name of the URL query string parameter that indicates how many results to return at once. spring.data.rest.max-page-size. stanford freshman grades xa