| /* |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. |
| * The ASF licenses this file to You under the Apache License, Version 2.0 |
| * (the "License"); you may not use this file except in compliance with |
| * the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #include <ignite/impl/binary/binary_common.h> |
| |
| #include "ignite/odbc/type_traits.h" |
| #include "ignite/odbc/connection.h" |
| #include "ignite/odbc/message.h" |
| #include "ignite/odbc/query/primary_keys_query.h" |
| |
| namespace |
| { |
| struct ResultColumn |
| { |
| enum Type |
| { |
| /** Catalog name. NULL if not applicable to the data source. */ |
| TABLE_CAT = 1, |
| |
| /** Schema name. NULL if not applicable to the data source. */ |
| TABLE_SCHEM, |
| |
| /** Table name. */ |
| TABLE_NAME, |
| |
| /** Column name. */ |
| COLUMN_NAME, |
| |
| /** Column sequence number in key. */ |
| KEY_SEQ, |
| |
| /** Primary key name. */ |
| PK_NAME |
| }; |
| }; |
| } |
| |
| namespace ignite |
| { |
| namespace odbc |
| { |
| namespace query |
| { |
| PrimaryKeysQuery::PrimaryKeysQuery(diagnostic::Diagnosable& diag, |
| Connection& connection, const std::string& catalog, |
| const std::string& schema, const std::string& table) : |
| Query(diag, QueryType::PRIMARY_KEYS), |
| connection(connection), |
| catalog(catalog), |
| schema(schema), |
| table(table), |
| executed(false), |
| columnsMeta() |
| { |
| using namespace ignite::impl::binary; |
| using namespace ignite::odbc::type_traits; |
| |
| using meta::ColumnMeta; |
| |
| columnsMeta.reserve(6); |
| |
| const std::string sch(""); |
| const std::string tbl(""); |
| |
| columnsMeta.push_back(ColumnMeta(sch, tbl, "TABLE_CAT", IGNITE_TYPE_STRING)); |
| columnsMeta.push_back(ColumnMeta(sch, tbl, "TABLE_SCHEM", IGNITE_TYPE_STRING)); |
| columnsMeta.push_back(ColumnMeta(sch, tbl, "TABLE_NAME", IGNITE_TYPE_STRING)); |
| columnsMeta.push_back(ColumnMeta(sch, tbl, "COLUMN_NAME", IGNITE_TYPE_STRING)); |
| columnsMeta.push_back(ColumnMeta(sch, tbl, "KEY_SEQ", IGNITE_TYPE_SHORT)); |
| columnsMeta.push_back(ColumnMeta(sch, tbl, "PK_NAME", IGNITE_TYPE_STRING)); |
| } |
| |
| PrimaryKeysQuery::~PrimaryKeysQuery() |
| { |
| // No-op. |
| } |
| |
| SqlResult::Type PrimaryKeysQuery::Execute() |
| { |
| if (executed) |
| Close(); |
| |
| meta.push_back(meta::PrimaryKeyMeta(catalog, schema, table, "_KEY", 1, "_KEY")); |
| |
| executed = true; |
| |
| cursor = meta.begin(); |
| |
| return SqlResult::AI_SUCCESS; |
| } |
| |
| const meta::ColumnMetaVector & PrimaryKeysQuery::GetMeta() const |
| { |
| return columnsMeta; |
| } |
| |
| SqlResult::Type PrimaryKeysQuery::FetchNextRow(app::ColumnBindingMap & columnBindings) |
| { |
| if (!executed) |
| { |
| diag.AddStatusRecord(SqlState::SHY010_SEQUENCE_ERROR, "Query was not executed."); |
| |
| return SqlResult::AI_ERROR; |
| } |
| |
| if (cursor == meta.end()) |
| return SqlResult::AI_NO_DATA; |
| |
| app::ColumnBindingMap::iterator it; |
| |
| for (it = columnBindings.begin(); it != columnBindings.end(); ++it) |
| GetColumn(it->first, it->second); |
| |
| ++cursor; |
| |
| return SqlResult::AI_SUCCESS; |
| } |
| |
| SqlResult::Type PrimaryKeysQuery::GetColumn(uint16_t columnIdx, app::ApplicationDataBuffer& buffer) |
| { |
| if (!executed) |
| { |
| diag.AddStatusRecord(SqlState::SHY010_SEQUENCE_ERROR, "Query was not executed."); |
| |
| return SqlResult::AI_ERROR; |
| } |
| |
| if (cursor == meta.end()) |
| return SqlResult::AI_NO_DATA; |
| |
| const meta::PrimaryKeyMeta& currentColumn = *cursor; |
| |
| switch (columnIdx) |
| { |
| case ResultColumn::TABLE_CAT: |
| { |
| buffer.PutString(currentColumn.GetCatalogName()); |
| break; |
| } |
| |
| case ResultColumn::TABLE_SCHEM: |
| { |
| buffer.PutString(currentColumn.GetSchemaName()); |
| break; |
| } |
| |
| case ResultColumn::TABLE_NAME: |
| { |
| buffer.PutString(currentColumn.GetTableName()); |
| break; |
| } |
| |
| case ResultColumn::COLUMN_NAME: |
| { |
| buffer.PutString(currentColumn.GetColumnName()); |
| break; |
| } |
| |
| case ResultColumn::KEY_SEQ: |
| { |
| buffer.PutInt16(currentColumn.GetKeySeq()); |
| break; |
| } |
| |
| case ResultColumn::PK_NAME: |
| { |
| buffer.PutString(currentColumn.GetKeyName()); |
| break; |
| } |
| |
| default: |
| break; |
| } |
| |
| return SqlResult::AI_SUCCESS; |
| } |
| |
| SqlResult::Type PrimaryKeysQuery::Close() |
| { |
| meta.clear(); |
| |
| executed = false; |
| |
| return SqlResult::AI_SUCCESS; |
| } |
| |
| bool PrimaryKeysQuery::DataAvailable() const |
| { |
| return cursor != meta.end(); |
| } |
| |
| int64_t PrimaryKeysQuery::AffectedRows() const |
| { |
| return 0; |
| } |
| |
| SqlResult::Type PrimaryKeysQuery::NextResultSet() |
| { |
| return SqlResult::AI_NO_DATA; |
| } |
| } |
| } |
| } |
| |