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C++ified index operators. More to follow here

This commit is contained in:
Michael Hackstein 2015-08-28 15:53:23 +02:00
parent cb9e1b0e98
commit 3c55dbb201
1 changed files with 6 additions and 56 deletions
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62
arangod/IndexOperators/index-operator.h
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@ -99,11 +99,10 @@ TRI_index_operator_type_e;
/// @brief operands and operators
////////////////////////////////////////////////////////////////////////////////
typedef struct TRI_index_operator_s {
struct TRI_index_operator_t {
TRI_index_operator_type_e _type;
VocShaper* _shaper;
}
TRI_index_operator_t;
};
//................................................................................
@ -111,26 +110,22 @@ TRI_index_operator_t;
// It is a binary or unary operator
//................................................................................
typedef struct TRI_logical_index_operator_s {
TRI_index_operator_t base;
struct TRI_logical_index_operator_t : public TRI_index_operator_t {
TRI_index_operator_t* _left; // could be a relation or another logical operator
TRI_index_operator_t* _right; // could be a relation or another logical operator or null
}
TRI_logical_index_operator_t;
};
//................................................................................
// Storage for relation operator, e.g. <, <=, >, >=, ==, in
//................................................................................
typedef struct TRI_relation_index_operator_s {
TRI_index_operator_t base;
struct TRI_relation_index_operator_s : public TRI_index_operator_t {
TRI_json_t* _parameters; // parameters with which this relation was called with
TRI_shaped_json_t* _fields; // actual data from the parameters converted from
// a json array to a shaped json array
size_t _numFields; // number of fields in the array above
}
TRI_relation_index_operator_t;
};
////////////////////////////////////////////////////////////////////////////////
@ -147,14 +142,6 @@ TRI_index_operator_t* TRI_CreateIndexOperator (TRI_index_operator_type_e,
VocShaper*,
size_t);
////////////////////////////////////////////////////////////////////////////////
/// @brief copy an index operator recursively (deep copy)
////////////////////////////////////////////////////////////////////////////////
TRI_index_operator_t* TRI_CopyIndexOperator (TRI_index_operator_t*);
////////////////////////////////////////////////////////////////////////////////
/// @brief free an index operator recursively
///
@ -163,43 +150,6 @@ TRI_index_operator_t* TRI_CopyIndexOperator (TRI_index_operator_t*);
void TRI_FreeIndexOperator (TRI_index_operator_t*);
// -----------------------------------------------------------------------------
// --SECTION-- public types
// -----------------------------------------------------------------------------
// .............................................................................
// A structure which (eventually) will allow a query to make an informed 'guess'
// as to the likelihood of an index being efficient if used for document
// retrieval. Added here in this file for convenience. Eventually this structrue
// will be expanded. (Essentially a placeholder for now.)
// .............................................................................
typedef struct TRI_index_challenge_s {
double _response; // 0 == NO, 1 == YES
} TRI_index_challenge_t;
// .............................................................................
// An enumeration of possible methods which require assignment from a 'generic'
// index structure to a concrete index structure. Added here in this file
// for convenience.
// .............................................................................
typedef enum {
TRI_INDEX_METHOD_ASSIGNMENT_FREE,
TRI_INDEX_METHOD_ASSIGNMENT_QUERY,
TRI_INDEX_METHOD_ASSIGNMENT_RESULT
}
TRI_index_method_assignment_type_e;
struct TRI_index_iterator_s;
typedef int (*TRI_index_query_method_call_t) (void*, TRI_index_operator_t*, TRI_index_challenge_t*, void*);
typedef struct TRI_index_iterator_s* (*TRI_index_query_result_method_call_t) (void*, TRI_index_operator_t*, void*, bool (*filter) (struct TRI_index_iterator_s*));
typedef int (*TRI_index_query_free_method_call_t) (void*, void*);
#endif
// -----------------------------------------------------------------------------