Class XPathExpression

Represents an expression that evaluates to True, if provided XPath condition matches some values in the request message.

Inheritance
System.Object
AuthorizationExpressionBase
XPathExpression
Implements
System.IEquatable<AuthorizationExpressionBase>
System.Runtime.Serialization.IExtensibleDataObject
Inherited Members
System.Object.Equals(System.Object, System.Object)
System.Object.ReferenceEquals(System.Object, System.Object)
System.Object.GetType()
System.Object.MemberwiseClone()
Namespace: Nevatech.Vsb.Repository.Security
Assembly: Nevatech.Vsb.Repository.dll
Syntax
public sealed class XPathExpression : AuthorizationExpressionBase, IValidator, IEquatable<AuthorizationExpressionBase>, IExtensibleDataObject
Remarks

Use online tool for testing XPath expressions: http://chris.photobooks.com/xml/default.htm

Constructors

XPathExpression()

Initializes an empty instance.

Declaration
public XPathExpression()

Fields

ElementName

Name of the root element when object is serialized to XML.

Declaration
public const string ElementName = "XPATH"
Field Value
Type Description
System.String

Properties

Namespaces

Gets or sets collection of mappings between prefixes and namespaces used in XPath expression. This property is used for XML serialization.

Declaration
public XmlSerializerNamespaces Namespaces { get; set; }
Property Value
Type Description
System.Xml.Serialization.XmlSerializerNamespaces

XPath

Gets or sets XPath expression that has to evaluate to a boolean value.

Declaration
public string XPath { get; set; }
Property Value
Type Description
System.String

Methods

Equals(AuthorizationExpressionBase)

Determines whether the specified object is equal to the current object.

Declaration
public override bool Equals(AuthorizationExpressionBase other)
Parameters
Type Name Description
AuthorizationExpressionBase other

The object to compare with the current object.
Returns
Type Description
System.Boolean

True if the specified object is equal to the current object; otherwise, false.
Overrides

Equals(Object)

Determines whether the specified object is equal to the current object.

Declaration
public override bool Equals(object obj)
Parameters
Type Name Description
System.Object obj

The object to compare with the current object.
Returns
Type Description
System.Boolean

True if the specified object is equal to the current object; otherwise, false.
Overrides

Evaluate(AuthorizationExpressionContext)

Returns True, if provided identity is authorized to proceed with the service call.

Declaration
public override bool Evaluate(AuthorizationExpressionContext context)
Parameters
Type Name Description
AuthorizationExpressionContext context

Provides the message evaluation context.
Returns
Type Description
System.Boolean

True, if provided identity is authorized to proceed with the service call. False, otherwise.
Overrides

GetHashCode()

Returns hash code for the value of this instance.

Declaration
public override int GetHashCode()
Returns
Type Description
System.Int32

Hash code for the value of this instance.
Overrides

ToString()

Returns string representation of the object.

Declaration
public override string ToString()
Returns
Type Description
System.String

String representing the object's content.
Overrides
System.Object.ToString()

Validate()

Evaluates the state of the object.

Declaration
public override bool Validate()
Returns
Type Description
System.Boolean

True if state is valid; otherwise, false.
Overrides

Implements

System.IEquatable<T>
System.Runtime.Serialization.IExtensibleDataObject