/// <summary>
/// 构造
/// </summary>
/// <param name = "fieldName">字段名</param>
/// <param name = "operator">表达式操作符</param>
/// <param name = "value">值</param>
/// <param name = "nextUnionType">与下一个表达式的联合类型<see cref = "WhereUnionType" /></param>
public FieldCondition(string fieldName, OperatorType @operator, object value, WhereUnionType @nextUnionType)
{
FieldName = fieldName;
Operator = @operator;
Value = value;
NextUnionType = nextUnionType;
}
/// <summary>
/// 获取查询条件逻辑符号
/// </summary>
/// <param name = "wut">逻辑类型</param>
/// <returns>符号</returns>
public static string GetWhereUnionType(WhereUnionType wut)
{
return wut == WhereUnionType.And ? "AND" : "OR";
}
/// <summary>
/// 增加查询组
/// </summary>
/// <param name = "fieldConditions">字段结构集合<see cref = "FieldConditionCollections" /></param>
/// <param name = "nextUnionType">下个查询组的条件连接</param>
public void Add(FieldConditionCollections fieldConditions, WhereUnionType @nextUnionType)
{
var queryGroupObject = new QueryGroupCondition(fieldConditions, @nextUnionType);
Add(queryGroupObject);
}
/// <summary>
/// 构造
/// </summary>
/// <param name = "fieldConditions">字段结构集合<see cref = "FieldConditionCollections" /></param>
/// <param name = "nextUnionType">下个查询组的条件连接</param>
public QueryGroupCondition(FieldConditionCollections fieldConditions, WhereUnionType @nextUnionType)
{
FieldConditions = fieldConditions;
NextUnionType = @nextUnionType;
}
/// <summary>
/// 构造
/// </summary>
/// <param name = "fieldName">字段名</param>
/// <param name = "operator">表达式操作符</param>
/// <param name = "value">值</param>
/// <param name = "nextUnionType">与下一个表达式的联合类型<see cref = "WhereUnionType" /></param>
public FieldCondition(string fieldName, OperatorType @operator, object value, WhereUnionType @nextUnionType)
{
FieldName = fieldName;
Operator = @operator;
Value = value;
NextUnionType = nextUnionType;
}
/// <summary>
/// 构造
/// </summary>
/// <param name = "fieldConditions">字段结构集合<see cref = "FieldConditionCollections" /></param>
/// <param name = "nextUnionType">下个查询组的条件连接</param>
public QueryGroupCondition(FieldConditionCollections fieldConditions, WhereUnionType @nextUnionType)
{
FieldConditions = fieldConditions;
NextUnionType = @nextUnionType;
}
/// <summary>
/// 增加
/// </summary>
/// <param name = "fieldName">字段名</param>
/// <param name = "operator">表达式操作符</param>
/// <param name = "value">值</param>
/// <param name = "nextUnionType">与下一个表达式的联合类型<see cref = "WhereUnionType" /></param>
public void Add(string fieldName, OperatorType @operator, object value, WhereUnionType @nextUnionType)
{
var fieldObject = new FieldCondition(fieldName, @operator, value, @nextUnionType);
Add(fieldObject);
}