github.com/hasnat/dolt/go@v0.0.0-20210628190320-9eb5d843fbb7/libraries/doltcore/sqle/sqlutil/static_errors.go (about)

     1  // Copyright 2020 Dolthub, Inc.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package sqlutil
    16  
    17  import (
    18  	"github.com/dolthub/go-mysql-server/sql"
    19  )
    20  
    21  type StaticErrorTable struct {
    22  	sql.Table
    23  	err error
    24  }
    25  
    26  func (t *StaticErrorTable) Partitions(ctx *sql.Context) (sql.PartitionIter, error) {
    27  	return nil, t.err
    28  }
    29  
    30  func (t *StaticErrorTable) PartitionRows(ctx *sql.Context, p sql.Partition) (sql.RowIter, error) {
    31  	return nil, t.err
    32  }
    33  
    34  func NewStaticErrorTable(orig sql.Table, err error) sql.Table {
    35  	return &StaticErrorTable{orig, err}
    36  }
    37  
    38  type StaticErrorRowIter struct {
    39  	err error
    40  }
    41  
    42  func NewStaticErrorRowIter(err error) sql.RowIter {
    43  	return &StaticErrorRowIter{err}
    44  }
    45  
    46  func (i *StaticErrorRowIter) Next() (sql.Row, error) {
    47  	return nil, i.err
    48  }
    49  
    50  func (i *StaticErrorRowIter) Close(*sql.Context) error {
    51  	// Or i.err?
    52  	return nil
    53  }
    54  
    55  type StaticErrorEditor struct {
    56  	err error
    57  }
    58  
    59  func NewStaticErrorEditor(err error) *StaticErrorEditor {
    60  	return &StaticErrorEditor{err}
    61  }
    62  
    63  func (e *StaticErrorEditor) Insert(*sql.Context, sql.Row) error {
    64  	return e.err
    65  }
    66  
    67  func (e *StaticErrorEditor) Delete(*sql.Context, sql.Row) error {
    68  	return e.err
    69  }
    70  
    71  func (e *StaticErrorEditor) Update(*sql.Context, sql.Row, sql.Row) error {
    72  	return e.err
    73  }
    74  
    75  func (e *StaticErrorEditor) SetAutoIncrementValue(*sql.Context, interface{}) error {
    76  	return e.err
    77  }
    78  
    79  func (e *StaticErrorEditor) StatementBegin(ctx *sql.Context) {}
    80  
    81  func (e *StaticErrorEditor) DiscardChanges(ctx *sql.Context, errorEncountered error) error {
    82  	return nil
    83  }
    84  
    85  func (e *StaticErrorEditor) StatementComplete(ctx *sql.Context) error {
    86  	return nil
    87  }
    88  
    89  func (e *StaticErrorEditor) Close(*sql.Context) error {
    90  	// Or e.err?
    91  	return nil
    92  }