At this point, do not worry about the details of the code JPublisher generates. Calling the no-argument constructor is equivalent to passing the SQLJ default context to the constructor that takes a DefaultContext instance. For a comparison of the SQLData and ORAData interfaces, see the Oracle9i JDBC Developer's Guide and Reference. The file ./demo/corp/AddrArray.java reads as follows: Note: The details of method bodies that JPublisher generates might change in future releases.
These methods (functions and procedures) reside on the server as part of a user's schema. This command directs JPublisher to connect to the database with the user name scott and password TIGER and to translate data types to Java classes, based on instructions in the INPUT JPublisher generates .java files for object reference, VARRAY, and nested table classes. That is, for each specific object, object reference, or collection type in the database, there is a corresponding Java type. https://docs.oracle.com/cd/B10501_01/java.920/a96658/intro.htm
Unless you have legacy code that depends on _ctx, it is preferable to use the getConnectionContext() and setConnectionContext() methods to retrieve and manipulate connection context instances in JPublisher-generated classes. This permits you to convert other typed references to a PersonRef instance. You can use a subset of the datatypes as object attribute types, as listed in "Allowed Object Attribute Types". Myclass.java Note: No spaces are permitted around the equal sign (=) on the JPublisher command line.
The wrapper methods JPublisher generates contain SQLJ code, so when JPublisher generates wrapper methods, it generally produces .sqlj source files. This normalize procedure invokes the stored procedure call RATIONALP.NORMALIZE with IN OUT host variables :numerator and :denominator. The following example calls a PL/SQL stored procedure that takes a WAREHOUSE_TYPE instance as an IN OUT parameter: java.math.BigDecimal location = ...; java.math.BigDecimal warehouseId = ...; MyWarehouse w = new MyWarehouse(warehouseId,"Industrial This means that, in a backward-compatibility mode, JPublisher generates .sqlj files instead of .java files.
See Also: Oracle Database JDBC Developer's Guide and Reference Alternatively, with the password file set up, you can manually load JPublisher generated PL/SQL wrapper and Java wrapper into the database. JPublisher also supports specification of .java files, or .sqlj files, if you are using SQLJ source files directly, on the JPublisher command line. This is necessary to publish any proxy class instance method as a static method, because PL/SQL does not support instance methods. see here SQLJ uses the _SQL_NAME and _SQL_TYPECODE strings to identify the SQL type matching the Address class.
JPublisher generates source code for the gcd function, which takes two BigDecimal values--x and y--and returns a BigDecimal result. The constructors for the class associate a connection with the class instance. For more information, see "Use of Connection Contexts and Instances in SQLJ Code Generated by JPublisher". Note: Oracle8i compatibility mode is now the only way for a connection Assume JPublisher translates the types according to the following command entered on the command line: % jpub -user=scott -dir=demo -numbertypes=objectjdbc -builtintypes=jdbc -package=corp -case=mixed -sql=Employee Enter scott password: password See Also: "JPublisher
To use all features of JPublisher, you also need: Oracle9i (or version 8.1.7 or 8.1.6) Oracle9i JDBC drivers (or version 8.1.7 or 8.1.6) Java Developer's Kit (JDK) version 1.2 If https://docs.oracle.com/cd/B10501_01/java.920/a96658/sampcode.htm Home Book List Contents Index Master Index Feedback Go to main content 7/14 2 Introduction to JPublisher This chapter provides an overview of the JPublisher utility, a summary of JPublisher operations, If you never generate classes that implement the Oracle-specific ORAData interface (or the deprecated CustomDatum interface), you should be able to use a non-Oracle JDBC driver or a non-Oracle SQLJ implementation. Following are the contents of the Employee.java file.
However, if you intend to translate and compile in separate steps (setting -compile=false in SQLJ so that only .java files, not .class files, are produced), then you must use the same For example, the DATE type is mapped to oracle.sql.DATE, and all numeric types are mapped to oracle.sql.NUMBER. We recommend upgrading to the latest Safari, Google Chrome, or Firefox. By default, it uses the SQLJ connection context class sqlj.runtime.ref.DefaultContext.
Either way, only SQL types are exposed to JDBC. Advantages of using strongly typed instead of weakly typed references are described in "Strongly Typed Object References for ORAData Implementations". If, instead, you request SQLData classes, JPublisher does not generate This is an instance of the internal class MutableStruct; this instance contains the data in original SQL format. Predefined datatypes that are Oracle extensions (such as BFILE and ROWID) do not have JDBC mappings, so only the oracle.sql.* mapping is supported for these types.
The EmployeeRef.java file is unchanged because it does not depend on the types of the attributes. PL/SQL Scripts JPublisher generates the following PL/SQL scripts: A wrapper script to create the PL/SQL package and any necessary SQL types A script to grant permission to run the wrapper script For PL/SQL RECORD types or indexed-by tables types, you have the choice of JPublisher automatically creating a SQL object type or SQL collection type, respectively, as an intermediate step in the
JPublisher Compatibility Between JDK Versions Generally speaking, .sqlj files generated by JPublisher can be translated under either JDK 1.1.x (assuming you are not using JDBC 2.0-specific types) or JDK 1.2.x or
The code for rational.sql follows: CREATE TYPE Rational AS OBJECT ( numerator INTEGER, denominator INTEGER, MAP MEMBER FUNCTION toReal RETURN REAL, MEMBER PROCEDURE normalize, STATIC FUNCTION gcd(x INTEGER, y INTEGER) RETURN When you run JPublisher for a PL/SQL package, it automatically creates the following: a Java class with wrapper methods that invoke the stored procedures of the package if required, a PL/SQL Avoid the -compatible=8i setting in these circumstances, and use the setConnectionContext() and release() methods in manipulating connection contexts. JPublisher translates collection types when generating ORAData classes, but not when generating SQLData classes.
Note: The details of the code JPublisher generates are subject to change. See "Case of Java Identifiers (-case)". Also, it can represent the largest numeric values that can be stored in the database, because it uses the oracle.sql.NUMBER class for all numeric types. An instance of a class generated for a PL/SQL package does not contain copies of PL/SQL package variables.
The following subsections provide more detail: Input to JPublisher Output from JPublisher See Also: "Overview of the Publishing Process: Generation and Use of Output" Input to JPublisher You can specify input It generates Java classes to represent database entities, such as SQL objects and PL/SQL packages, in a Java client program.