Oracle C++ Call Interface Programmer's Guide

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How to Use the OTT Utility In this example, the demoin.typ file contains the type to be translated, preceded by the keyword TYPE. The structure of the OUTTYPE file is similar to the INTYPE file, with the addition of information obtained by the OTT utility. Once the OTT utility has completed the translation, the header file contains a C structure representation of each type specified in the INTYPE file, and a null indicator structure corresponding to each type. Let us assume the employee type listed in the INTYPE file is defined as follows: CREATE TYPE employee AS OBJECT ( name VARCHAR2(30), empno NUMBER, deptno NUMBER, hiredate DATE, salary NUMBER ); The header file, demo.h, generated by the OTT utility includes, among other items, the following declarations: struct employee { OCIString * name; OCINumber empno; OCINumber deptno; OCIDate hiredate; OCINumber salary; }; typedef struct emp_type emp_type; struct employee_ind { OCIInd _atomic; OCIInd name; OCIInd empno; OCIInd deptno; OCIInd hiredate; OCIInd salary; }; typedef struct employee_ind employee_ind; 7-4 Oracle C++ Call Interface Programmer’s Guide
How to Use the OTT Utility Example for C++ The following example is of an OTT command that invokes the OTT utility and generates C++ classes: ott userid=scott/tiger intype=demoin.typ outtype=demoout.typ code=cpp hfile=demo.h cppfile=demo.cpp mapfile=RegisterMappings.cpp This command causes the OTT utility to connect to the database as username scott with password tiger, and use the demoin.typ file as the INTYPE file, and the demoout.typ file as the OUTTYPE file. The resulting declarations are output to the file demo.h in C++, specified by the CODE=cpp parameter, the method implementations written to the file demo.cpp, and the functions to register mappings is written to RegisterMappings.cpp with its prototype written to RegisterMappings.h. By using the same demoin.typ file and employee type as in the previous section, the OTT utility generates the following files: ■ demo.h ■ demo.cpp Note: Parameters in the INTYPE file control the way generated structures are named. In this example, the structure name employee matches the database type name employee. The structure name is in lowercase because of the line CASE=lower in the INTYPE file. See Also: "OTT Utility Datatype Mappings" on page 7-16 for more information about types. ■ RegisterMappings.h ■ RegisterMappings.cpp ■ demoout.typ The contents of these files are displayed in the following sections: ■ Contents of the demo.h File ■ Contents of the demo.cpp File ■ Contents of the RegisterMappings.h File ■ Contents of the RegisterMappings.cpp File How to Use the Object Type Translator Utility 7-5
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Oracle® C++ Call Interface Program
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List List of Figures Tables Content
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Null and Truncated Data............
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6 Metadata Overview of Metadata ...
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length() ..........................
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flushCache().......................
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getSecond() .......................
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cos()..............................
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operator new().....................
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isTruncated() .....................
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setCharacterStreamMode() ..........
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Index occiinh.typ .................
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List of Tables 2-1 Normal Data - No
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Oracle C++ Call Interface Programme
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Preface The Oracle C++ Call Interfa
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Related Documentation Chapter 4, "D
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Conventions in Text We use various
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Convention Meaning Example UPPERCAS
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What’s New in Orace C++ Call Inte
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■ Number Class ■ operator signe
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1 Introduction to OCCI This chapter
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Building an OCCI Application Overvi
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Processing of SQL Statements In an
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Overview of PL/SQL SELECT dname FRO
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Object Support Client-Side Object C
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Metadata Class Object Support ■ B
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2 Relational Programming This chapt
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. . . stmt->closeResultSet(rs); con
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const string poolUserName = "SCOTT"
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■ executeArrayUpdate: To execute
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Standard Statements Types of SQL St
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Types of SQL Statements in the OCCI
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Executing SQL Queries Executing SQL
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Specifying the Query } Executing SQ
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Status Definitions Executing Statem
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Executing Statements Dynamically No
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Null and Truncated Data Error Handl
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Advanced Relational Techniques In T
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Note: Advanced Relational Technique
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Optimizing Performance Advanced Rel
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Advanced Relational Techniques indi
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3 Object Programming This chapter p
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Persistent Objects Working with Obj
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Values In the context of this manua
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See Also: Developing an OCCI Object
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Figure 3-1 Basic Object Operational
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Developing an OCCI Object Applicati
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Overview of Associative Access Maxi
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Retrieving an Object Reference (REF
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} Overview of Navigational Access T
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Overview of Complex Object Retrieva
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■ The reference to the root purch
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} void *operator new(size_t size, c
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Freeing Objects Type Inheritance Ty
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Type Inheritance Instance substitut
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A Sample OCCI Application void *ope
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} cout
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} A Sample OCCI Application /* comm
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4 Datatypes This chapter is a refer
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Internal Datatypes Note: There are
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External Datatypes ■ OCCI_SQLT_CH
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Table 4-2 External Datatypes, C++ D
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External Datatypes CHARZ The extern
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External Datatypes FLOAT The extern
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External Datatypes LONG The externa
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OCCI BYTES OCCI CLOB OCCI DATE See
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External Datatypes When RAW data in
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External Datatypes is not an intege
Page 139 and 140: Table 4-5 Data Conversions Internal
Page 141 and 142: LONG RAW I/O LONG VARRAW I/O OCCI B
Page 143 and 144: The following topics are covered in
Page 145 and 146: External LOBs (BFILEs) Overview of
Page 147 and 148: Table 5-1 OCCI LOB Classes and Meth
Page 149 and 150: Creating LOBs Table 5-1 OCCI LOB Cl
Page 151 and 152: LOB Classes and Methods Note: For i
Page 153 and 154: { Blob blob=rset->getBlob(1); if(bl
Page 155 and 156: } blob.writeChunk(, buffer, BUFSIZE
Page 157 and 158: Updating LOBs LOB Classes and Metho
Page 159 and 160: Objects with LOB Attributes 5. Repi
Page 161 and 162: 6 Metadata This chapter describes h
Page 163 and 164: Describing Database Metadata You ob
Page 165 and 166: Metatdata Code Examples Table 6-1 A
Page 167 and 168: Describing Database Metadata /* Cal
Page 169 and 170: Attribute Reference . . /* Create a
Page 171 and 172: Table 6-2 Attributes Belonging to A
Page 173 and 174: Package Attributes Type Attributes
Page 175 and 176: Type Attribute Attributes Table 6-8
Page 177 and 178: Collection Attributes Table 6-10 At
Page 179 and 180: Synonym Attributes Sequence Attribu
Page 181 and 182: Table 6-14 Attributes Belonging to
Page 183 and 184: List Attributes Table 6-15 Attribut
Page 185 and 186: Table 6-18 Attributes Specific to D
Page 187 and 188: 7 How to Use the Object Type Transl
Page 189: How to Use the OTT Utility the Type
Page 193 and 194: }; virtual void writeSQL(oracle::oc
Page 195 and 196: } streamOCCI_.setString(name); stre
Page 197 and 198: Invoking the OTT Utility For global
Page 199 and 200: Invoking the OTT Utility userid Par
Page 201 and 202: Overview of the INTYPE File The lin
Page 203 and 204: OTT Utility Datatype Mappings The O
Page 205 and 206: OTT Utility Datatype Mappings Note:
Page 207 and 208: the_clob CLOB, the_object object_ty
Page 209 and 210: OTT Utility Datatype Mappings When
Page 211 and 212: class other_type : public oracle::o
Page 213 and 214: Overview of the OUTTYPE File its ve
Page 215 and 216: Figure 7-1 The OTT Utility with OCC
Page 217 and 218: The OTT Utility and OCCI Applicatio
Page 219 and 220: }; static void *readSQL(void *ctxOC
Page 221 and 222: public: }; void *operator new(size_
Page 223 and 224: { FullName *objOCCI_ = (FullName *)
Page 225 and 226: excep.setErrorCtx(ctxOCCI_); } retu
Page 227 and 228: } setVector(streamOCCI_, PREV_ADDR_
Page 229 and 230: TYPE SCOTT.FULL_NAME AS FullName VE
Page 231 and 232: }; The OTT Utility and OCCI Applica
Page 233 and 234: ***********************************
Page 235 and 236: #endif Map Registry Function The OT
Page 237 and 238: The OTT Utility and OCCI Applicatio
Page 239 and 240: public: }; void *operator new(size_
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}; static void *readSQL(void *ctxOC
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eturn; } void CFullName::writeSQL(o
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The OTT Utility and OCCI Applicatio
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eturn oracle::occi::PObject::operat
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Properties of OTT Markers Following
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Where the Markers Can Be Used Carry
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Carrying Forward User Added Code be
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DROP TABLE PERSON_TAB; DROP TABLE A
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Carrying Forward User Added Code AD
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}; PERSON_O(); Carrying Forward Use
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addr = new_addr; this->markModified
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} return; } void ADDRESS_O::writeSQ
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} streamOCCI_.setString(last_name);
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mdemo1m.cpp // --------------------
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conn->terminateStatement(stmt); //
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Example OCCI Application Example OC
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■ Example of C++ Source File for
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OCCI_STD_NAMESPACE::string STATE; O
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}; void *operator new(size_t size);
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OCCI_STD_NAMESPACE::string CFullNam
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} streamOCCI_.setString(FirstName);
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{ if (objOCCI_->isNull()) streamOCC
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OCCI_STD_NAMESPACE::string CPerson:
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{ return oracle::occi::PObject::ope
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#ifndef CPERSON_ORACLE # include "c
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Example OCCI Application /*********
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* initialize MyFullName */ MyFullNa
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* Display all the information of My
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Example OCCI Application conn, and
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} RefAny jillrefany = resultSet2->g
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Connection *conn = env->createConne
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OTT Command Line Syntax OTT Utility
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■ CPPFILE Parameter ■ ERRTYPE P
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OTT Utility Reference CONFIG Parame
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INITFUNC=filename OTT Utility Refer
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See Also: "SCHEMA_NAMES Usage" on p
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Structure of the INTYPE File OTT Ut
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■ It appears in the INTYPE file.
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struct px1_ind col1 }; typedef stru
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OTT Utility Reference The Pro*C/C++
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OTT Utility Reference Once the OTT
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This part contains one chapter: ■
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Summary of OCCI Classes Summary of
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OCCI Classes and Methods using Decl
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Bfile Class close() closeStream() T
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Bfile Class isInitialized() isNull(
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Bfile Class operator!=() read() Syn
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Blob Class Blob Class The Blob clas
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Blob Class close() closeStream() co
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Blob Class getStream() isInitialize
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Blob Class operator==() operator!=
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Blob Class setNull() trim() write()
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Blob Class buffer The buffer contai
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Bytes Class getBytes() isNull() Par
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Clob Class Clob Class The Clob clas
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Clob Class append() close() closeSt
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Clob Class getCharSetId() getChunkS
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Clob Class open() operator=() opera
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Clob Class setCharSetId() setCharSe
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Clob Class write() Valid values are
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Connection Class Connection Class T
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Connection Class flushCache() This
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Connection Class Syntax LNOCIServer
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ConnectionPool Class createConnecti
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ConnectionPool Class getMinConnecti
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ConnectionPool Class Syntax void te
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Date Class Summary of Date Methods
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Date Class addDays() addMonths() da
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Date Class getDate() getSystemDate(
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Date Class operator==() operator!=(
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Date Class operator
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Date Class toZone() const string &n
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Environment Class Environment Class
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Environment Class Syntax Connection
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Environment Class getCacheMaxSize()
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Environment Class terminateConnecti
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IntervalDS Class Constructs an Inte
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IntervalDS Class fromText() getDay(
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IntervalDS Class operator*=() opera
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IntervalDS Class operator/=() opera
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IntervalDS Class operator-=() opera
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IntervalDS Class toText() This meth
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IntervalYM Class The following code
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IntervalYM Class getMonth() getYear
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IntervalYM Class operator!=() opera
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IntervalYM Class operator
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IntervalYM Class set() setNull() to
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Map Class Map Class The Map class i
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MetaData Class MetaData Class A Met
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MetaData Class Summary of MetaData
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MetaData Class getMetaData() getNum
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MetaData Class getVector() operator
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Number Class Translates a native lo
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Number Class nu4 = nu1 + nu2; /* Co
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Number Class Table 8-14 Number Meth
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Number Class arcTan2() ceil() cos()
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Number Class hypCos() hypSin() hypT
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Number Class operator++() operator-
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Number Class operator-() operator-(
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Number Class operator>=() operator=
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Number Class operator%=() operator+
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Number Class operator long() operat
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Number Class round() setNull() shif
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Number Class toText() trunc() Synta
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PObject Class PObject Class OCCI pr
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PObject Class isLocked() isNull() l
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PObject Class operator new() pin()
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Ref Class Ref Class The mapping in
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Ref Class isClear() isNull() markDe
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Ref Class operator=() ptr() Paramet
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Ref Class setNull() unmarkDelete()
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RefAny Class getConnection() getRef
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ResultSet Class ResultSet Class Res
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ResultSet Class Table 8-18 ResultSe
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ResultSet Class getBfile() getBlob(
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ResultSet Class getCurrentStreamCol
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ResultSet Class getFloat() getInt()
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ResultSet Class getNumber() getObje
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ResultSet Class getString() getTime
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ResultSet Class vector &vect); void
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ResultSet Class isNull() isTruncate
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ResultSet Class Parameters setBinar
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ResultSet Class in the *length para
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ResultSet Class setMaxColumnSize()
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SQLException Class getMessage() set
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Statement Class Table 8-20 Statemen
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Statement Class Table 8-20 Statemen
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Statement Class closeStream() execu
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Statement Class arrayLength paramet
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Statement Class getBfile() getBlob(
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Statement Class getCurrentStreamIte
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Statement Class getFloat() getInt()
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Statement Class getObject() getOCIS
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Statement Class getString() getTime
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Statement Class vector &vect; void
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Statement Class isNull() isTruncate
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Statement Class setAutoCommit() set
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Statement Class setBytes() x The pa
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Statement Class Syntax void setDate
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Statement Class setDataBufferArray(
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Statement Class setDouble() setErro
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Statement Class setIntervalDS() set
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Statement Class setNumber() setObje
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Statement Class setRef() setRowid()
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Statement Class setUInt() setVector
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Statement Class void setVector(Stat
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Statement Class status() sqltype sq
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Stream Class readLastBuffer() write
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Timestamp Class Timestamp Class Thi
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Timestamp Class } if(reft() on page
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Timestamp Class getDate() getTime()
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Timestamp Class intervalSub() isNul
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Timestamp Class operator>=() operat
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Timestamp Class setNull() setTime()
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Timestamp Class toText() Return str
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A OCCI Demonstration Programs Oracl
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OCCI Demonstration Programs # 2. A
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OCCI Demonstration Programs # 2. A
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OCCI Demonstration Programs occidem
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occiblob.cpp build_static: $(OBJS)
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} /** * printing the blob data as i
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occiclob.cpp { Blob blob = rset->ge
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* populating the clob; */ void popu
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int clobLength=clob.length (); cout
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~occicoll () { env->terminateConnec
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Deleting a row in a nested table vo
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occidesc.cpp cout
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OCCI Demonstration Programs cout
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OCCI Demonstration Programs else co
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cout
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case OCCI_SQLT_LBI : return "LONG R
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void insertBind (int c1, string c2)
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{ OCCI Demonstration Programs strin
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using namespace oracle::occi; using
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fs_obj->setpartner(fs_partner); fs_
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fs_ref->getleader(); /* Leader's Pa
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occiobj.cpp OCCI Demonstration Prog
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}catch(SQLException ex) { cout
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occipobj.typ occipobj.cpp demo->upd
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OCCI Demonstration Programs /** * I
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OCCI Demonstration Programs RefAny
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** * Destructor for the occipool te
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#include #include using namespace
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occistre.cpp OCCI Demonstration Pro
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delete (demo); cout
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A application-provided serializatio
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OCCI DATE, 4-15 OCCI INTERVALDS, 4-
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N RefAny methods, 8-139, 8-143 setD
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RESULT_SET_AVAILABLE status, 2-17,
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