/// <summary>
/// Creates an XPath filter for the specified object type and attribute value pair
/// </summary>
/// <param name="objectType">The object type to query</param>
/// <param name="attributeName">The name of the attribute to query</param>
/// <param name="comparisonOperator">The operator used to compare the attribute and value</param>
/// <param name="attributeValue">The value of the attribute to query</param>
/// <returns>An XPath query string</returns>
public static string CreateFilter(string objectType, string attributeName, ComparisonOperator comparisonOperator, object attributeValue)
{
AttributeValuePairCollection dictionary = new AttributeValuePairCollection();
dictionary.Add(attributeName, attributeValue);
return(XPathFilterBuilder.CreateFilter(objectType, dictionary, comparisonOperator, GroupOperator.And));
}
/// <summary>
/// Initializes a new instance of the XpathQueryGroup class
/// </summary>
/// <param name="groupOperator">The logical operator to apply to queries within this group</param>
/// <param name="attributeValuePairs">The attribute and value pairs to query</param>
/// <param name="valueComparisonOperator">The operator to apply to the individual attribute and value pairs</param>
public XPathQueryGroup(GroupOperator groupOperator, AttributeValuePairCollection attributeValuePairs, ComparisonOperator valueComparisonOperator)
{
this.Queries = new List <IXPathQueryObject>();
foreach (AttributeValuePair value in attributeValuePairs)
{
this.Queries.Add(new XPathQuery(value.AttributeName, valueComparisonOperator, value.Value));
}
this.GroupOperator = groupOperator;
}
/// <summary>
/// Creates an XPath filter for the specified object type and attribute/value pairs. Multiple pairs are joined with an 'and' operator
/// </summary>
/// <param name="objectType">The object type to query</param>
/// <param name="keyValuePairs">The list to attribute and value pairs to query for</param>
/// <param name="valueComparisonOperator">The operator used to compare the attribute and value pairs</param>
/// <param name="groupOperator">The operator to use to join the attribute value pair comparisons together</param>
/// <returns>An XPath query string</returns>
public static string CreateFilter(string objectType, AttributeValuePairCollection keyValuePairs, ComparisonOperator valueComparisonOperator, GroupOperator groupOperator)
{
return(XPathFilterBuilder.CreateFilter(objectType, new XPathQueryGroup(groupOperator, keyValuePairs, valueComparisonOperator)));
}
/// <summary>
/// Creates a filter that dereferences a matching expression, and returns the resulting values from the referenced attribute
/// </summary>
/// <param name="searchObjectType">The object type to query</param>
/// <param name="keyValuePairs">The list to attribute and value pairs to query for</param>
/// <param name="valueComparisonOperator">The operator used to compare the attribute and value pairs</param>
/// <param name="groupOperator">The operator to use to join the attribute value pair comparisons together</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, AttributeValuePairCollection keyValuePairs, ComparisonOperator valueComparisonOperator, GroupOperator groupOperator, string referenceAttributeName)
{
XPathQueryGroup predicate = new XPathQueryGroup(groupOperator, keyValuePairs, valueComparisonOperator);
return(XPathFilterBuilder.CreateDereferenceFilter(searchObjectType, predicate, referenceAttributeName));
}
