Oracle C++ Call Interface Programmer's Guide

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Bfile Class isInitialized() isNull() isOpen() Parameters offset The starting position at which to begin reading data from the BFILE. If offset is not specified, the data is written from the beginning of the BLOB. Valid values are: Numbers greater than or equal to 1. amount The total number of bytes to be read from the BFILE; if amount is 0, the data will be read in a streamed mode from input offset until the end of the BFILE. This method tests whether the Bfile object has been initialized. If the Bfile object has been initialized, then true is returned; otherwise, false is returned. Syntax bool isInitialized() const; This method tests whether the Bfile object is atomically null. If the Bfile object is atomically null, then true is returned; otherwise, false is returned. Syntax bool isNull() const; This method tests whether the BFILE is open. The BFILE is considered to be open only if it was opened by a call on this Bfile object. (A different Bfile object could have opened this file as more than one open can be performed on the same file by associating the file with different Bfile objects). If the BFILE is open, then true is returned; otherwise, false is returned. Syntax bool isOpen() const; 8-8 Oracle C++ Call Interface Programmer’s Guide
length() open() operator=() operator==() Bfile Class This method returns the number of bytes (inclusive of the end of file marker) in the BFILE. Syntax unsigned int length() const; This method opens an existing BFILE for read-only access. This function is meaningful the first time it is called for a Bfile object. Syntax void open(); This method assigns a Bfile object to the current Bfile object. The source Bfile object is assigned to this Bfile object only when this Bfile object gets stored in the database. Syntax Bfile& operator=(const Bfile &srcBfile); Parameters srcBfile The Bfile object to be assigned to the current Bfile object. This method compares two Bfile objects for equality. The Bfile objects are equal if they both refer to the same BFILE. If the Bfile objects are null, then false is returned. If the Bfile objects are equal, then true is returned; otherwise, false is returned. OCCI Classes and Methods 8-9
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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
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Table 4-5 Data Conversions Internal
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LONG RAW I/O LONG VARRAW I/O OCCI B
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The following topics are covered in
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External LOBs (BFILEs) Overview of
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Table 5-1 OCCI LOB Classes and Meth
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Creating LOBs Table 5-1 OCCI LOB Cl
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LOB Classes and Methods Note: For i
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{ Blob blob=rset->getBlob(1); if(bl
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} blob.writeChunk(, buffer, BUFSIZE
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Updating LOBs LOB Classes and Metho
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Objects with LOB Attributes 5. Repi
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6 Metadata This chapter describes h
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Describing Database Metadata You ob
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Metatdata Code Examples Table 6-1 A
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Describing Database Metadata /* Cal
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Attribute Reference . . /* Create a
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Table 6-2 Attributes Belonging to A
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Package Attributes Type Attributes
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Type Attribute Attributes Table 6-8
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Collection Attributes Table 6-10 At
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Synonym Attributes Sequence Attribu
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Table 6-14 Attributes Belonging to
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List Attributes Table 6-15 Attribut
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Table 6-18 Attributes Specific to D
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7 How to Use the Object Type Transl
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How to Use the OTT Utility the Type
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How to Use the OTT Utility Example
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}; virtual void writeSQL(oracle::oc
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} streamOCCI_.setString(name); stre
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Invoking the OTT Utility For global
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Invoking the OTT Utility userid Par
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Overview of the INTYPE File The lin
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OTT Utility Datatype Mappings The O
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OTT Utility Datatype Mappings Note:
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the_clob CLOB, the_object object_ty
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OTT Utility Datatype Mappings When
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class other_type : public oracle::o
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Overview of the OUTTYPE File its ve
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Figure 7-1 The OTT Utility with OCC
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The OTT Utility and OCCI Applicatio
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}; static void *readSQL(void *ctxOC
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public: }; void *operator new(size_
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{ FullName *objOCCI_ = (FullName *)
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excep.setErrorCtx(ctxOCCI_); } retu
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} setVector(streamOCCI_, PREV_ADDR_
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TYPE SCOTT.FULL_NAME AS FullName VE
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}; The OTT Utility and OCCI Applica
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***********************************
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#endif Map Registry Function The OT
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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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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
Page 281 and 282: } streamOCCI_.setString(FirstName);
Page 283 and 284: { if (objOCCI_->isNull()) streamOCC
Page 285 and 286: OCCI_STD_NAMESPACE::string CPerson:
Page 287 and 288: { return oracle::occi::PObject::ope
Page 289 and 290: #ifndef CPERSON_ORACLE # include "c
Page 291 and 292: Example OCCI Application /*********
Page 293 and 294: * initialize MyFullName */ MyFullNa
Page 295 and 296: * Display all the information of My
Page 297 and 298: Example OCCI Application conn, and
Page 299 and 300: } RefAny jillrefany = resultSet2->g
Page 301 and 302: Connection *conn = env->createConne
Page 303 and 304: OTT Command Line Syntax OTT Utility
Page 305 and 306: ■ CPPFILE Parameter ■ ERRTYPE P
Page 307 and 308: OTT Utility Reference CONFIG Parame
Page 309 and 310: INITFUNC=filename OTT Utility Refer
Page 311 and 312: See Also: "SCHEMA_NAMES Usage" on p
Page 313 and 314: Structure of the INTYPE File OTT Ut
Page 315 and 316: ■ It appears in the INTYPE file.
Page 317 and 318: struct px1_ind col1 }; typedef stru
Page 319 and 320: OTT Utility Reference The Pro*C/C++
Page 321 and 322: OTT Utility Reference Once the OTT
Page 323: This part contains one chapter: ■
Page 326 and 327: Summary of OCCI Classes Summary of
Page 328 and 329: OCCI Classes and Methods using Decl
Page 330 and 331: Bfile Class close() closeStream() T
Page 334 and 335: Bfile Class operator!=() read() Syn
Page 336 and 337: Blob Class Blob Class The Blob clas
Page 338 and 339: Blob Class close() closeStream() co
Page 340 and 341: Blob Class getStream() isInitialize
Page 342 and 343: Blob Class operator==() operator!=
Page 344 and 345: Blob Class setNull() trim() write()
Page 346 and 347: Blob Class buffer The buffer contai
Page 348 and 349: Bytes Class getBytes() isNull() Par
Page 350 and 351: Clob Class Clob Class The Clob clas
Page 352 and 353: Clob Class append() close() closeSt
Page 354 and 355: Clob Class getCharSetId() getChunkS
Page 356 and 357: Clob Class open() operator=() opera
Page 358 and 359: Clob Class setCharSetId() setCharSe
Page 360 and 361: Clob Class write() Valid values are
Page 362 and 363: Connection Class Connection Class T
Page 364 and 365: Connection Class flushCache() This
Page 366 and 367: Connection Class Syntax LNOCIServer
Page 368 and 369: ConnectionPool Class createConnecti
Page 370 and 371: ConnectionPool Class getMinConnecti
Page 372 and 373: ConnectionPool Class Syntax void te
Page 374 and 375: Date Class Summary of Date Methods
Page 376 and 377: Date Class addDays() addMonths() da
Page 378 and 379: Date Class getDate() getSystemDate(
Page 380 and 381: 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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