protected override void SetParameter(int index, DbParameter value)
{
KdbPlusParameter param = GetParameter(value);
InsertParameter(index, param);
InvokeParametersChanged();
}
public override void Remove(object value)
{
KdbPlusParameter param = GetParameter(value);
_parameters.Remove(param);
UnSubscribeToParameterChanges(param);
InvokeParametersChanged();
}
public override void Insert(int index, object value)
{
KdbPlusParameter param = GetParameter(value);
InsertParameter(index, param);
InvokeParametersChanged();
}
public override int Add(object value)
{
KdbPlusParameter param = GetParameter(value);
AddParameter(param);
InvokeParametersChanged();
return(_parameters.IndexOf(param));
}
private static KdbPlusParameter GetParameter(object value)
{
Guard.ThrowIfNull(value, "value");
KdbPlusParameter param = value as KdbPlusParameter;
if (param == null)
{
throw new ArgumentException("Parameter is not KdbPlusParameter.");
}
return(param);
}
protected override void SetParameter(string parameterName, DbParameter value)
{
KdbPlusParameter param = GetParameter(value);
int idx = FindIndex(parameterName);
if (idx >= 0)
{
RemoveParameterAtIndex(idx);
}
AddParameter(param);
InvokeParametersChanged();
}
private string GetPreparedText(int parameterCount, ref object[] preparedParameters)
{
string preparedText;
int replacedCount = 0;
if (parameterCount > 0)
{
KdbPlusParameter[] cachedParameters = new KdbPlusParameter[parameterCount];
_parameters.CopyTo(cachedParameters, 0);
StringBuilder builder = new StringBuilder(_commandText);
for (int i = 0; i < parameterCount; i++)
{
KdbPlusParameter param = cachedParameters[i];
if (!String.IsNullOrEmpty(param.ParameterName) && _commandText.Contains(param.ParameterName))
{
replacedCount++;
builder.Replace(param.ParameterName, param.FormatValue);
cachedParameters[i] = null;
}
}
preparedText = builder.ToString();
if (parameterCount - replacedCount > 0)
{
preparedParameters = new object[parameterCount - replacedCount];
int added = 0;
for (int i = 0; i < parameterCount; i++)
{
KdbPlusParameter param = cachedParameters[i];
if (param != null)
{
preparedParameters[added] = param.Value;
added++;
}
}
}
}
else
{
throw new InvalidOperationException("No parameters were specified for command.");
}
return(preparedText);
}
public override int IndexOf(object value)
{
KdbPlusParameter param = GetParameter(value);
return(_parameters.IndexOf(param));
}
public override bool Contains(object value)
{
KdbPlusParameter param = GetParameter(value);
return(_parameters.Contains(param));
}
private void UnSubscribeToParameterChanges(KdbPlusParameter parameter)
{
parameter.ParameterChanged -= SingleParameterChanged;
}
private void InsertParameter(int index, KdbPlusParameter param)
{
_parameters.Insert(index, param);
SubscribeToParameterChanges(param);
}
private void AddParameter(KdbPlusParameter param)
{
_parameters.Add(param);
SubscribeToParameterChanges(param);
}
