NdbQueryDef Class Reference

#include <NdbQueryBuilder.hpp>

Public Types
enum	QueryType { LookupQuery, SingleScanQuery, MultiScanQuery }

Public Member Functions
Uint32	getNoOfOperations () const
const NdbQueryOperationDef *	getQueryOperation (const char *ident) const
const NdbQueryOperationDef *	getQueryOperation (Uint32 index) const
bool	isScanQuery () const
QueryType	getQueryType () const
void	destroy () const
NdbQueryDefImpl &	getImpl () const
void	print () const

Friends
class	NdbQueryDefImpl

Detailed Description

NdbQueryDef represents a ::prepare()'d object from NdbQueryBuilder.

The NdbQueryDef is reusable in the sense that it may be executed multiple times. It is valid until it is explicitely released().

The NdbQueryDef must be keept alive until the last thread which executing a query based on this NdbQueryDef has called NdbQuery::close().

A NdbQueryDef is scheduled for execution by appending it to an open transaction - optionally together with a set of parameters specifying the actuall values required by ::execute() (ie. Lookup an bind keys).

Definition at line 490 of file NdbQueryBuilder.hpp.

Member Enumeration Documentation

enum NdbQueryDef::QueryType

The different types of query types supported

Enumerator:

LookupQuery	All operations are PrimaryKey- or UniqueIndexAccess.
SingleScanQuery	Root is Table- or OrderedIndexScan, childs are 'lookup'.
MultiScanQuery	Root, and some childs are scans.

Definition at line 499 of file NdbQueryBuilder.hpp.

Member Function Documentation

void NdbQueryDef::print

(

void

)

const

Print the query in a semi human readable form

Definition at line 338 of file NdbQueryBuilder.cpp.

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The documentation for this class was generated from the following files:

• storage/ndb/src/ndbapi/NdbQueryBuilder.hpp
• storage/ndb/src/ndbapi/NdbQueryBuilder.cpp