RWDBDateVector

• Data Type and Member Function Indexes
• Synopsis
• Description
• Example
• Public Member Operator
• Public Member Functions

Member Functions
entries() isNull()	length() operator[]()	setNull() unsetNull()

#include <rw/db/dbdatevec.h>
#include <rw/db/dbase.h>

RWDBDateVector dateVector = db.dateVector(n);

RWDBDateVectors are used to transfer date values between the application and the database via RWDBBulkReaders and RWDBBulkInserters. Class RWDBDateVector implements basic vector methods and adds null processing capabilities similar to RWDBVector. RWDBDateVectors are produced by RWDBDatabase. The resulting RWDBDateVector elements are RWDBVendorDates of the type appropriate for the underlying database.

In the following example, a vector dateVector is produced. The vector could later be used with either an RWDBBulkInserter or an RWDBBulkReader:

RWDBDateVector dateVector = aDB.dateVector(n);

RWDBVendorDate 
operator[](size_t index) const;

Returns an instance of an RWDBVendorDate, which in turn holds a reference to the underlying vendor date structure held in the index^th position.

size_t 
entries() const;

Returns the number of elements in self.

RWBoolean
isNull(size_t index) const;

Returns true if the index^th element of self is null, otherwise returns false .

size_t 
length() const;

Returns the number of elements in self.

void 
setNull(size_t index);

Sets the index^th element of self to null.

void 
unsetNull(size_t index);

Sets the index^th element of self to not null.

©Copyright 1999, Rogue Wave Software, Inc.
Contact Rogue Wave about documentation or support issues.