index 147d74555c4d68a979e01d3f96249c65b6da3212..4e9e32ce1d25ec980a15eb16773f6c52f1773daa 100644 (file)
--- a/src/include/core/store.h
+++ b/src/include/core/store.h
/*
* sdb_store_expr_attrvalue:
* Creates an expression which evaluates to the value of the specified
- * attribute of a stored object.
+ * attribute of a stored object. Evaluates to a NULL value if the attribute
+ * does not exist.
*
* Returns:
* - an expression object on success
sdb_store_cond_t *
sdb_store_attr_cond(const char *name, sdb_store_expr_t *expr);
-/*
- * sdb_store_obj_cond:
- * Creates a conditional based on queryable object fields. The respective
- * field of *any* object type is compared against the value the expression
- * evaluates to.
- */
-sdb_store_cond_t *
-sdb_store_obj_cond(int field, sdb_store_expr_t *expr);
-
/*
* sdb_store_name_matcher:
* Creates a matcher matching by the specified object type's name. If 're' is
/*
* sdb_store_isnull_matcher:
- * Creates a matcher matching "missing" attributes.
+ * Creates a matcher matching NULL values.
+ */
+sdb_store_matcher_t *
+sdb_store_isnull_matcher(sdb_store_expr_t *expr);
+
+/*
+ * sdb_store_isnnull_matcher:
+ * Creates a matcher matching non-NULL values.
*/
sdb_store_matcher_t *
-sdb_store_isnull_matcher(const char *attr_name);
+sdb_store_isnnull_matcher(sdb_store_expr_t *expr);
/*
* sdb_store_child_matcher:
sdb_store_matcher_t *
sdb_store_cmp_gt(sdb_store_expr_t *left, sdb_store_expr_t *right);
+/*
+ * sdb_store_in_matcher:
+ * Creates a matcher which matches if the right value evaluates to an array
+ * value and the left value is included in that array. See sdb_data_inarray
+ * for more details.
+ */
+sdb_store_matcher_t *
+sdb_store_in_matcher(sdb_store_expr_t *left, sdb_store_expr_t *right);
+
/*
* sdb_store_regex_matcher:
* Creates a matcher which matches the string value the left expression
sdb_store_matcher_parse_cmp(const char *obj_type, const char *attr,
const char *op, sdb_store_expr_t *expr);
-/*
- * sdb_store_matcher_parse_field_cmp:
- * Parse a simple compare expression for queryable object fields (<field> <op>
- * <expression>).
- *
- * Returns:
- * - a matcher object on success
- * - NULL else
- */
-sdb_store_matcher_t *
-sdb_store_matcher_parse_field_cmp(const char *name, const char *op,
- sdb_store_expr_t *expr);
-
/*
* sdb_store_dis_matcher:
* Creates a matcher matching the disjunction (logical OR) of two matchers.
sdb_store_matcher_matches(sdb_store_matcher_t *m, sdb_store_obj_t *obj,
sdb_store_matcher_t *filter);
-/*
- * sdb_store_matcher_tostring:
- * Format a matcher object as string. This is meant for logging or debugging
- * purposes.
- */
-char *
-sdb_store_matcher_tostring(sdb_store_matcher_t *m, char *buf, size_t buflen);
-
/*
* sdb_store_lookup_cb:
* Lookup callback. It is called for each matching object when looking up data