| /* |
| * 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. |
| */ |
| |
| #ifndef _IGNITE_ODBC_QUERY_TABLE_METADATA_QUERY |
| #define _IGNITE_ODBC_QUERY_TABLE_METADATA_QUERY |
| |
| #include "ignite/odbc/query/query.h" |
| #include "ignite/odbc/meta/table_meta.h" |
| |
| namespace ignite |
| { |
| namespace odbc |
| { |
| /** Connection forward-declaration. */ |
| class Connection; |
| |
| namespace query |
| { |
| /** |
| * Query. |
| */ |
| class TableMetadataQuery : public Query |
| { |
| public: |
| /** |
| * Constructor. |
| * |
| * @param diag Diagnostics collector. |
| * @param connection Associated connection. |
| * @param catalog Catalog search pattern. |
| * @param schema Schema search pattern. |
| * @param table Table search pattern. |
| * @param tableType Table type search pattern. |
| */ |
| TableMetadataQuery(diagnostic::DiagnosableAdapter& diag, Connection& connection, |
| const std::string& catalog, const std::string& schema, |
| const std::string& table, const std::string& tableType); |
| |
| /** |
| * Destructor. |
| */ |
| virtual ~TableMetadataQuery(); |
| |
| /** |
| * Execute query. |
| * |
| * @return True on success. |
| */ |
| virtual SqlResult::Type Execute(); |
| |
| /** |
| * Get column metadata. |
| * |
| * @return Column metadata. |
| */ |
| virtual const meta::ColumnMetaVector* GetMeta(); |
| |
| /** |
| * Fetch next result row to application buffers. |
| * |
| * @return Operation result. |
| */ |
| virtual SqlResult::Type FetchNextRow(app::ColumnBindingMap& columnBindings); |
| |
| /** |
| * Get data of the specified column in the result set. |
| * |
| * @param columnIdx Column index. |
| * @param buffer Buffer to put column data to. |
| * @return Operation result. |
| */ |
| virtual SqlResult::Type GetColumn(uint16_t columnIdx, app::ApplicationDataBuffer& buffer); |
| |
| /** |
| * Close query. |
| * |
| * @return True on success. |
| */ |
| virtual SqlResult::Type Close(); |
| |
| /** |
| * Check if data is available. |
| * |
| * @return True if data is available. |
| */ |
| virtual bool DataAvailable() const; |
| |
| /** |
| * Get number of rows affected by the statement. |
| * |
| * @return Number of rows affected by the statement. |
| */ |
| virtual int64_t AffectedRows() const; |
| |
| /** |
| * Move to the next result set. |
| * |
| * @return Operation result. |
| */ |
| virtual SqlResult::Type NextResultSet(); |
| |
| private: |
| IGNITE_NO_COPY_ASSIGNMENT(TableMetadataQuery); |
| |
| /** |
| * Make get columns metadata requets and use response to set internal state. |
| * |
| * @return True on success. |
| */ |
| SqlResult::Type MakeRequestGetTablesMeta(); |
| |
| /** Connection associated with the statement. */ |
| Connection& connection; |
| |
| /** Catalog search pattern. */ |
| std::string catalog; |
| |
| /** Schema search pattern. */ |
| std::string schema; |
| |
| /** Table search pattern. */ |
| std::string table; |
| |
| /** Table type search pattern. */ |
| std::string tableType; |
| |
| /** Query executed. */ |
| bool executed; |
| |
| /** Fetched flag. */ |
| bool fetched; |
| |
| /** Fetched metadata. */ |
| meta::TableMetaVector meta; |
| |
| /** Metadata cursor. */ |
| meta::TableMetaVector::iterator cursor; |
| |
| /** Columns metadata. */ |
| meta::ColumnMetaVector columnsMeta; |
| }; |
| } |
| } |
| } |
| |
| #endif //_IGNITE_ODBC_QUERY_TABLE_METADATA_QUERY |