/// <summary>
/// Performs CRUD execution of queries that do not return result set. Override to do custom Query interpretation
/// </summary>
protected internal async virtual Task <int> DoExecuteWithoutFetchAsync(OracleConnection cnn, OracleTransaction transaction, Query[] queries)
{
if (queries == null)
{
return(0);
}
var affected = 0;
foreach (var query in queries)
{
var handler = QueryResolver.Resolve(query);
try
{
affected += await handler.ExecuteWithoutFetchAsync(new OracleCRUDQueryExecutionContext(this, cnn, transaction), query).ConfigureAwait(false);
}
catch (Exception error)
{
throw new OracleDataAccessException(
StringConsts.EXECUTE_WITHOUT_FETCH_ERROR + error.ToMessageWithType(),
error,
KeyViolationKind.Unspecified,
CRUDGenerator.KeyViolationName(error));
}
}
return(affected);
}
/// <summary>
/// Performs CRUD load. Override to do custom Query interpretation
/// </summary>
protected internal async virtual Task <List <RowsetBase> > DoLoadAsync(OracleConnection cnn, OracleTransaction transaction, Query[] queries, bool oneDoc = false)
{
var result = new List <RowsetBase>();
if (queries == null)
{
return(result);
}
foreach (var query in queries)
{
var handler = QueryResolver.Resolve(query);
try
{
var rowset = await handler.ExecuteAsync(new OracleCRUDQueryExecutionContext(this, cnn, transaction), query, oneDoc).ConfigureAwait(false);
result.Add(rowset);
}
catch (Exception error)
{
throw new OracleDataAccessException(
StringConsts.LOAD_ERROR + error.ToMessageWithType(),
error,
KeyViolationKind.Unspecified,
CRUDGenerator.KeyViolationName(error));
}
}
return(result);
}
/// <summary>
/// Populates OracleCommand with parameters from CRUD Query object
/// Note: this code was purposely made provider specific because other providers may treat some nuances differently
/// </summary>
public void PopulateParameters(OracleCommand cmd, Query query)
{
foreach (var par in query.Where(p => p.HasValue))
{
cmd.Parameters.Add(par.Name, par.Value);
}
if (query.StoreKey != null)
{
var where = GeneratorUtils.KeyToWhere(query.StoreKey, cmd.Parameters);
cmd.CommandText += "\n WHERE \n {0}".Args(where);
}
CRUDGenerator.ConvertParameters(Store, cmd.Parameters);
}
/// <summary>
/// Performs CRUD load. Override to do custom Query interpretation
/// </summary>
protected internal async virtual Task <Cursor> DoOpenCursorAsync(OracleConnection cnn, OracleTransaction transaction, Query query)
{
var context = new OracleCRUDQueryExecutionContext(this, cnn, transaction);
var handler = QueryResolver.Resolve(query);
try
{
return(await handler.OpenCursorAsync(context, query).ConfigureAwait(false));
}
catch (Exception error)
{
throw new OracleDataAccessException(
StringConsts.OPEN_CURSOR_ERROR + error.ToMessageWithType(),
error,
KeyViolationKind.Unspecified,
CRUDGenerator.KeyViolationName(error));
}
}
/// <summary>
/// Performs CRUD load without fetching data only returning schema. Override to do custom Query interpretation
/// </summary>
protected internal async virtual Task <Schema> DoGetSchemaAsync(OracleConnection cnn, OracleTransaction transaction, Query query)
{
if (query == null)
{
return(null);
}
var handler = QueryResolver.Resolve(query);
try
{
return(await handler.GetSchemaAsync(new OracleCRUDQueryExecutionContext(this, cnn, transaction), query).ConfigureAwait(false));
}
catch (Exception error)
{
throw new OracleDataAccessException(
StringConsts.GET_SCHEMA_ERROR + error.ToMessageWithType(),
error,
KeyViolationKind.Unspecified,
CRUDGenerator.KeyViolationName(error));
}
}
/// <summary>
/// Performs CRUD row deletion. Override to do custom deletion
/// </summary>
protected internal async override Task <int> DoDeleteAsync(OracleConnection cnn, OracleTransaction transaction, Doc row, IDataStoreKey key = null)
{
CheckReadOnly(row.Schema, "delete");
return(await CRUDGenerator.CRUDDelete(this, cnn, transaction, row, key).ConfigureAwait(false));
}
/// <summary>
/// Performs CRUD row upsert. Override to do custom upsertion
/// </summary>
protected internal async override Task <int> DoUpsertAsync(OracleConnection cnn, OracleTransaction transaction, Doc row, FieldFilterFunc filter = null)
{
CheckReadOnly(row.Schema, "upsert");
return(await CRUDGenerator.CRUDUpsert(this, cnn, transaction, row, filter).ConfigureAwait(false));
}
/// <summary>
/// Performs CRUD row update. Override to do custom update
/// </summary>
protected internal virtual int DoUpdate(OracleConnection cnn, OracleTransaction transaction, Doc row, IDataStoreKey key = null, FieldFilterFunc filter = null)
{
checkReadOnly(row.Schema, "update");
return(CRUDGenerator.CRUDUpdate(this, cnn, transaction, row, key, filter));
}
/// <summary>
/// Performs CRUD row deletion. Override to do custom deletion
/// </summary>
protected internal virtual int DoDelete(OracleConnection cnn, OracleTransaction transaction, Doc row, IDataStoreKey key = null)
{
checkReadOnly(row.Schema, "delete");
return(CRUDGenerator.CRUDDelete(this, cnn, transaction, row, key));
}
/// <summary>
/// Performs CRUD row upsert. Override to do custom upsertion
/// </summary>
protected internal virtual int DoUpsert(OracleConnection cnn, OracleTransaction transaction, Doc row, FieldFilterFunc filter = null)
{
checkReadOnly(row.Schema, "upsert");
return(CRUDGenerator.CRUDUpsert(this, cnn, transaction, row, filter));
}
/// <summary>
/// Based on store settings, converts query parameters into MySQL-acceptable values, i.e. GDID -> BYTe[].
/// This function is not idempotent
/// </summary>
public void ConvertParameters(OracleParameterCollection pars)
{
CRUDGenerator.ConvertParameters(DataStore, pars);
}
/// <summary>
/// Based on store settings, converts CLR value to Oracle-acceptable value, i.e. GDID -> BYTE[].
/// </summary>
public (object value, OracleDbType?dbType) CLRValueToDB(object value, string explicitDbType)
{
return(CRUDGenerator.CLRValueToDB(DataStore, value, explicitDbType));
}
/// <summary>
/// Performs CRUD row update. Override to do custom update
/// </summary>
protected internal async override Task <int> DoUpdateAsync(OracleConnection cnn, OracleTransaction transaction, Doc row, IDataStoreKey key = null, FieldFilterFunc filter = null)
{
CheckReadOnly(row.Schema, "update");
return(await CRUDGenerator.CRUDUpdate(this, cnn, transaction, row, key, filter));
}
/// <summary>
/// Based on store settings, converts CLR value to MySQL-acceptable value, i.e. GDID -> BYTE[].
/// </summary>
public object CLRValueToDB(OracleDataStoreBase store, object value, out OracleDbType?convertedDbType)
{
return(CRUDGenerator.CLRValueToDB(DataStore, value, out convertedDbType));
}
