Search Toolkit Book for CQueryFuncPromoteEq

#include <gui/objutils/query_func_promote.hpp>

Inheritance diagram for CQueryFuncPromoteEq:

Collaboration diagram for CQueryFuncPromoteEq:

Public Member Functions
	CQueryFuncPromoteEq (NStr::ECase c=NStr::eCase, CStringMatching::EStringMatching matching=CStringMatching::ePlainSearch)
	Ctor. More...

virtual void	Evaluate (CQueryParseTree::TNode &qnode)
	Evaluate the node to see if '==' returns true. More...

Public Member Functions inherited from CQueryFuncEqualityCompares
	CQueryFuncEqualityCompares (CQueryParseNode::EType op_type, NStr::ECase c=NStr::eCase, CStringMatching::EStringMatching matching=CStringMatching::ePlainSearch)
	Ctor. More...

virtual void	InitTypePromotionRules (CQueryParseNode::EType op_type)
	Initialize promotion table for eqaulity comparisons (e.g. == or In) More...

Public Member Functions inherited from CQueryFuncPromoteCompare
	CQueryFuncPromoteCompare (CQueryParseNode::EType op_type, NStr::ECase c=NStr::eCase, CStringMatching::EStringMatching matching=(CStringMatching::ePlainSearch))
	Ctors for compare must include op_type for loading promotion rules. More...

Public Member Functions inherited from CQueryFuncPromoteBase
	CQueryFuncPromoteBase ()

void	SetCaseSensitive (NStr::ECase e)
	Get/set case sensitivity for all string compares for this function. More...

NStr::ECase	GetCaseSensitive () const

void	SetStringMatching (CStringMatching::EStringMatching m)
	Get/set string matching algorithm. More...

CStringMatching::EStringMatching	GetStringMatching () const

TEvalResult *	GetQueryNodeValue (CQueryParseTree::TNode &qnode)
	Get the user object for node 'qnode' or NULL if not created. More...

TEvalResult *	MakeQueryNodeValue (CQueryParseTree::TNode &qnode)
	Get user object for 'qnode' or create a new object if it doesn't exist. More...

void	PreProcess (CQueryParseTree::TNode &tr, objects::CScope *scope)
	Resolve, if possible, the data type for the query node tr and, for operator nodes (e.g. More...

QueryValueType::EBaseType	ResolveAndPromote (size_t comparison_idx, CQueryParseTree::TNode &qnode, CQueryParseTree::TNode arg1, CQueryParseTree::TNode arg2)
	For the operator in 'qnode', retrive from data source (if ncessary) the data values arg1 and arg2 and promote the values, if needed, to the required type needed for comparison. More...

QueryValueType::EBaseType	GetPromotedType (const CPromoteRule &pr)
	Given data from two nodes and a comparison operator (e.g. More...

bool	ResolveFieldValue (TEvalResult &tree_val)
	Get the value of a field from the data source and store the result in the CQueryNodeValue object. More...

bool	SetCompareType (TEvalResult &tree_value)
	Given data for a node, determine its underlying data type (e.g. More...

virtual size_t	GetArgCountMin (CQueryParseNode::EType)

virtual size_t	GetArgCountMax (CQueryParseNode::EType)

Public Member Functions inherited from CQueryFunctionBase
virtual	~CQueryFunctionBase ()

virtual bool	EvaluateChildrenFirst () const
	Do we evaluate before visiting the nodes children or after. More...

Additional Inherited Members
Public Types inherited from CQueryFuncPromoteBase
typedef CQueryNodeValue	TEvalResult

Public Types inherited from CQueryFunctionBase
typedef vector< CQueryParseTree::TNode * >	TArgVector
	Vector for easy argument access. More...

Protected Member Functions inherited from CQueryFuncPromoteBase
void	AddPromoteTypes (CQueryParseNode::EType op, QueryValueType::EBaseType type1, QueryValueType::EBaseType type2, QueryValueType::EBaseType ptype)
	Add the promtion rules for both 'type1 op type2' and 'type2 op type1'. More...

Protected Member Functions inherited from CQueryFunctionBase
CQueryExec &	GetExec ()
	Get reference on parent execution environment. More...

CQueryParseTree &	GetQueryTree ()
	Get query tree (execution context) More...

void	MakeArgVector (CQueryParseTree::TNode &qnode, TArgVector &args)
	Created vector of arguments (translate sub-nodes to vector) More...

CQueryParseTree::TNode *	GetArg0 (CQueryParseTree::TNode &qnode)
	Get first sub-node. More...

Protected Attributes inherited from CQueryFuncPromoteBase
std::vector< CPromoteRule >	m_PromoteRules
	Vector of sorted promotion rules. More...

NStr::ECase	m_CaseSensitive
	If true, all string comparisons by subclasses will use case-sensitive comparisons, otherwise not. More...

CStringMatching::EStringMatching	m_StringMatchAlgo
	Determines how string equality comaparisons will be handled (wildcards, regex, exact..) More...

Protected Attributes inherited from CQueryFunctionBase
CQueryExec *	m_QExec