/// <summary>
/// Creates an XPath filter using the specified query object and object type
/// </summary>
/// <param name="objectType">The type of object to query</param>
/// <param name="query">The IXPathQueryObject that contains the query logic to use in the expression</param>
/// <returns>An XPath query string</returns>
public static string CreateFilter(string objectType, IXPathQueryObject query)
{
return(new XPathExpression(objectType, query).ToString());
}
/// <summary>
/// Creates a filter that dereferences a matching expression, and returns the resulting values from the referenced attribute
/// </summary>
/// <param name="searchObjectType">The type of object to query</param>
/// <param name="query">The IXPathQueryObject that contains the query logic to use in the expression</param>
/// <param name="referenceAttributeName">The name of the attribute used to dereference the expression</param>
/// <returns>An XPath query string</returns>
public static string CreateDereferenceFilter(string searchObjectType, IXPathQueryObject query, string referenceAttributeName)
{
XPathDereferencedExpression expression = new XPathDereferencedExpression(searchObjectType, referenceAttributeName, query);
return(expression.ToString());
}
/// <summary>
/// Initializes a new instance of the XPathDereferencedExpression class
/// </summary>
/// <param name="objectType">The object type used in the expression</param>
/// <param name="dereferenceAttribute">The name of the attribute to dereference</param>
/// <param name="query">The query used to build the expression</param>
/// <param name="wrapFilterXml">Indicates if the resulting expression should be wrapped in an XML filter element</param>
public XPathDereferencedExpression(string objectType, string dereferenceAttribute, IXPathQueryObject query, bool wrapFilterXml)
: base(objectType, query, wrapFilterXml)
{
this.DereferenceAttribute = dereferenceAttribute;
ResourceManagementSchema.ValidateObjectTypeName(this.DereferenceAttribute);
}
/// <summary>
/// Initializes a new instance of the XPathDereferencedExpression class
/// </summary>
/// <param name="objectType">The object type used in the expression</param>
/// <param name="dereferenceAttribute">The name of the attribute to dereference</param>
/// <param name="query">The query used to build the expression</param>
public XPathDereferencedExpression(string objectType, string dereferenceAttribute, IXPathQueryObject query)
: this(objectType, dereferenceAttribute, query, false)
{
}
/// <summary>
/// Initializes a new instance of the XPathExpression class
/// </summary>
/// <param name="objectType">The type of object to query for</param>
/// <param name="query">The query component for this expression</param>
/// <param name="wrapFilterXml">Indicates if the resulting expression should be wrapped in a filter XML element</param>
public XPathExpression(string objectType, IXPathQueryObject query, bool wrapFilterXml)
{
this.ObjectType = objectType;
this.Query = query;
this.WrapFilterXml = wrapFilterXml;
}
/// <summary>
/// Initializes a new instance of the XPathExpression class
/// </summary>
/// <param name="objectType">The type of object to query for</param>
/// <param name="query">The query component for this expression</param>
public XPathExpression(string objectType, IXPathQueryObject query)
: this(objectType, query, false)
{
}