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cubscan::json_table::scanner Class Reference

#include <scan_json_table.hpp>

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Classes

struct  cursor
 

Public Member Functions

void init (cubxasl::json_table::spec_node &spec)
 
void clear (xasl_node *xasl_p, bool is_final, bool is_final_clear)
 
int open (cubthread::entry *thread_p)
 
void end (cubthread::entry *thread_p)
 
int next_scan (cubthread::entry *thread_p, scan_id_struct &sid, SCAN_CODE &sc)
 
SCAN_PRED & get_predicate ()
 
void set_value_descriptor (val_descr *vd)
 
 scanner ()=default
 

Private Member Functions

void clear_node_columns (cubxasl::json_table::node &node)
 
void reset_ordinality (cubxasl::json_table::node &node)
 
void init_iterators (cubxasl::json_table::node &node)
 
int init_cursor (const JSON_DOC &doc, cubxasl::json_table::node &node, cursor &cursor_out)
 
int set_next_cursor (const cursor &current_cursor, size_t next_depth)
 
int set_input_document (cursor &cursor, const cubxasl::json_table::node &node, const JSON_DOC &document)
 
size_t get_tree_height (const cubxasl::json_table::node &node)
 
int scan_next_internal (cubthread::entry *thread_p, size_t depth, bool &found_row_output)
 

Private Attributes

cubxasl::json_table::spec_node * m_specp
 
cursor * m_scan_cursor
 
size_t m_scan_cursor_depth
 
size_t m_tree_height
 
scan_pred m_scan_predicate
 
val_descr * m_vd
 

Detailed Description

Definition at line 109 of file scan_json_table.hpp.

Constructor & Destructor Documentation

cubscan::json_table::scanner::scanner ( )
default

Member Function Documentation

void cubscan::json_table::scanner::clear ( xasl_node *  xasl_p,
bool  is_final,
bool  is_final_clear 
)

Definition at line 197 of file scan_json_table.cpp.

References cubxasl::json_table::node::clear_iterators(), cubxasl::json_table::node::clear_xasl(), i, cubscan::json_table::scanner::cursor::m_child, cubscan::json_table::scanner::cursor::m_input_doc, cubscan::json_table::scanner::cursor::m_is_node_consumed, cubscan::json_table::scanner::cursor::m_is_row_fetched, cubscan::json_table::scanner::cursor::m_iteration_started, cubscan::json_table::scanner::cursor::m_need_advance_row, cubxasl::json_table::spec_node::m_root_node, m_scan_cursor, m_specp, m_tree_height, and reset_ordinality().

void cubscan::json_table::scanner::clear_node_columns ( cubxasl::json_table::node &  node)
private

Definition at line 404 of file scan_json_table.cpp.

References db_make_null(), i, cubxasl::json_table::node::m_output_columns, cubxasl::json_table::node::m_output_columns_size, cubxasl::json_table::column::m_output_value_pointer, and pr_clear_value().

void cubscan::json_table::scanner::end ( cubthread::entry *  thread_p)

Definition at line 289 of file scan_json_table.cpp.

References assert, and NULL.

Referenced by scan_end_scan().

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SCAN_PRED & cubscan::json_table::scanner::get_predicate ( )

Definition at line 563 of file scan_json_table.cpp.

References m_scan_predicate.

Referenced by scan_open_json_table_scan().

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size_t cubscan::json_table::scanner::get_tree_height ( const cubxasl::json_table::node &  node)
private

Definition at line 160 of file scan_json_table.cpp.

References i, cubxasl::json_table::node::m_nested_nodes, cubxasl::json_table::node::m_nested_nodes_size, and max.

Referenced by init().

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void cubscan::json_table::scanner::init ( cubxasl::json_table::spec_node &  spec)

Definition at line 174 of file scan_json_table.cpp.

References assert, get_tree_height(), i, init_iterators(), cubxasl::json_table::node::m_nested_nodes, cubxasl::json_table::node::m_nested_nodes_size, cubscan::json_table::scanner::cursor::m_node, cubxasl::json_table::spec_node::m_node_count, cubxasl::json_table::spec_node::m_root_node, m_scan_cursor, m_scan_cursor_depth, m_specp, and m_tree_height.

int cubscan::json_table::scanner::init_cursor ( const JSON_DOC &  doc,
cubxasl::json_table::node &  node,
cursor &  cursor_out 
)
private

Definition at line 386 of file scan_json_table.cpp.

References cubscan::json_table::scanner::cursor::m_child, cubscan::json_table::scanner::cursor::m_is_row_fetched, cubscan::json_table::scanner::cursor::m_node, and set_input_document().

Referenced by open(), and set_next_cursor().

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void cubscan::json_table::scanner::init_iterators ( cubxasl::json_table::node &  node)
private

Definition at line 414 of file scan_json_table.cpp.

References i, cubxasl::json_table::node::init_iterator(), cubxasl::json_table::node::m_nested_nodes, and cubxasl::json_table::node::m_nested_nodes_size.

Referenced by init().

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int cubscan::json_table::scanner::next_scan ( cubthread::entry *  thread_p,
scan_id_struct &  sid,
SCAN_CODE &  sc 
)

Definition at line 295 of file scan_json_table.cpp.

References assert, ASSERT_ERROR, ASSERT_ERROR_AND_SET, ER_FAILED, m_scan_predicate, NO_ERROR, NULL, open(), scan_id_struct::position, scan_pred::pr_eval_fnc, scan_pred::pred_expr, S_AFTER, S_BEFORE, S_END, S_ERROR, S_ON, S_STARTED, S_SUCCESS, scan_next_internal(), scan_id_struct::status, V_ERROR, V_FALSE, V_TRUE, and scan_id_struct::vd.

Referenced by scan_next_json_table_scan().

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int cubscan::json_table::scanner::open ( cubthread::entry *  thread_p)

Definition at line 228 of file scan_json_table.cpp.

References assert, ASSERT_ERROR, db_get_json_document(), DB_TYPE_JSON, db_value_is_null(), db_value_to_json_doc(), db_value_type(), ER_FAILED, fetch_peek_dbval(), init_cursor(), cubscan::json_table::scanner::cursor::m_is_node_consumed, cubxasl::json_table::spec_node::m_json_reguvar, cubxasl::json_table::spec_node::m_root_node, m_scan_cursor, m_scan_cursor_depth, m_specp, m_vd, NO_ERROR, NULL, and reset_ordinality().

Referenced by next_scan().

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void cubscan::json_table::scanner::reset_ordinality ( cubxasl::json_table::node &  node)
private

Definition at line 425 of file scan_json_table.cpp.

References i, cubxasl::json_table::node::init_ordinality(), cubxasl::json_table::node::m_nested_nodes, and cubxasl::json_table::node::m_nested_nodes_size.

Referenced by clear(), and open().

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int cubscan::json_table::scanner::scan_next_internal ( cubthread::entry *  thread_p,
size_t  depth,
bool &  found_row_output 
)
private

Definition at line 436 of file scan_json_table.cpp.

References cubscan::json_table::scanner::cursor::advance_row_cursor(), assert, ASSERT_ERROR, cubscan::json_table::scanner::cursor::fetch_row(), cubscan::json_table::scanner::cursor::m_child, cubscan::json_table::scanner::cursor::m_is_node_consumed, cubscan::json_table::scanner::cursor::m_iteration_started, cubscan::json_table::scanner::cursor::m_need_advance_row, cubxasl::json_table::node::m_nested_nodes_size, cubscan::json_table::scanner::cursor::m_node, m_scan_cursor, m_scan_cursor_depth, NO_ERROR, NULL, and set_next_cursor().

Referenced by next_scan().

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int cubscan::json_table::scanner::set_input_document ( cursor &  cursor,
const cubxasl::json_table::node &  node,
const JSON_DOC &  document 
)
private

Definition at line 358 of file scan_json_table.cpp.

References ASSERT_ERROR, db_json_extract_document_from_path(), cubscan::json_table::scanner::cursor::m_input_doc, cubscan::json_table::scanner::cursor::m_is_node_consumed, cubxasl::json_table::node::m_path, NO_ERROR, and cubscan::json_table::scanner::cursor::start_json_iterator().

Referenced by init_cursor().

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int cubscan::json_table::scanner::set_next_cursor ( const cursor &  current_cursor,
size_t  next_depth 
)
private

Definition at line 396 of file scan_json_table.cpp.

References init_cursor(), cubscan::json_table::scanner::cursor::m_child, cubxasl::json_table::node::m_nested_nodes, cubscan::json_table::scanner::cursor::m_node, cubscan::json_table::scanner::cursor::m_process_doc, and m_scan_cursor.

Referenced by scan_next_internal().

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void cubscan::json_table::scanner::set_value_descriptor ( val_descr *  vd)

Definition at line 569 of file scan_json_table.cpp.

References m_vd.

Referenced by scan_open_json_table_scan().

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Member Data Documentation

cursor* cubscan::json_table::scanner::m_scan_cursor
private

Definition at line 161 of file scan_json_table.hpp.

Referenced by clear(), init(), open(), scan_next_internal(), and set_next_cursor().

size_t cubscan::json_table::scanner::m_scan_cursor_depth
private

Definition at line 162 of file scan_json_table.hpp.

Referenced by init(), open(), and scan_next_internal().

scan_pred cubscan::json_table::scanner::m_scan_predicate
private

Definition at line 164 of file scan_json_table.hpp.

Referenced by get_predicate(), and next_scan().

cubxasl::json_table::spec_node* cubscan::json_table::scanner::m_specp
private

Definition at line 160 of file scan_json_table.hpp.

Referenced by clear(), init(), and open().

size_t cubscan::json_table::scanner::m_tree_height
private

Definition at line 163 of file scan_json_table.hpp.

Referenced by clear(), and init().

val_descr* cubscan::json_table::scanner::m_vd
private

Definition at line 165 of file scan_json_table.hpp.

Referenced by open(), and set_value_descriptor().

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