private string GetKqlOperator(CamlBinaryOperator value)
{
switch (value)
{
case CamlBinaryOperator.Eq:
return("=");
case CamlBinaryOperator.Neq:
return("<>");
case CamlBinaryOperator.Geq:
return(">=");
case CamlBinaryOperator.Gt:
return(">");
case CamlBinaryOperator.Leq:
return("<=");
case CamlBinaryOperator.Lt:
return("<");
case CamlBinaryOperator.Contains:
case CamlBinaryOperator.BeginsWith:
return(":");
default:
throw new NotSupportedException(String.Format("Unsupported {0} binary operator", value));
}
}
private CamlExpression HandleEqualityComparison(SPModelQueryFieldInfo s, CamlBinaryOperator op)
{
ICamlParameterBinding value = currentScope.GetValueBinding(s);
CamlExpression expression = new CamlWhereBinaryComparisonExpression(op, s.FieldRef, value);
Type memberType = currentScope.MemberType;
if (memberType.IsGenericType && memberType.GetGenericTypeDefinition() == typeof(Nullable <>))
{
memberType = memberType.GetGenericArguments()[0];
}
if (memberType.IsValueType || memberType == typeof(string))
{
string defaultValue = value.Bind(new Hashtable {
{ currentScope.ParameterName, memberType.IsValueType ? memberType.GetDefaultValue() : "" }
});
CamlExpression lateBoundCond = new CamlLateBoundDefaultValueAsNullExpression(s.FieldRef, value, defaultValue);
return(op == CamlBinaryOperator.Eq ? expression | lateBoundCond : expression& ~lateBoundCond);
}
return(expression);
}
/// <summary> /// Called when visiting a binary expression inside a <Where/> element. /// </summary> /// <param name="operatorValue">Type of binary operator.</param> /// <param name="fieldName">Name of field.</param> /// <param name="value">Value to operate against the field.</param> /// <param name="includeTimeValue">Indicates whether time component is included in comparison.</param> protected internal abstract void VisitWhereBinaryComparisonExpression(CamlBinaryOperator operatorValue, CamlParameterBindingFieldRef fieldName, ICamlParameterBinding value, bool?includeTimeValue);
