Class Attributes

Default implementation of the Attributes interface.

Inheritance

System.Object

Attributes

Attributes2

Implements

IAttributes

Namespace: Sax.Helpers

Assembly: Lucene.Net.Benchmark.dll

Syntax

public class Attributes : object, IAttributes

Remarks

This module, both source code and documentation, is in the Public Domain, and comes with NO WARRANTY. See http://www.saxproject.org for further information.

This class provides a default implementation of the SAX2 Attributes interface, with the addition of manipulators so that the list can be modified or reused.

There are two typical uses of this class:

• to take a persistent snapshot of an Attributes object in a StartElement(String, String, String, IAttributes) event; or
• to construct or modify an Attributes object in a SAX2 driver or filter.

This class replaces the now-deprecated SAX1 AttributeListImpl class; in addition to supporting the updated Attributes interface rather than the deprecated IAttributeList interface, it also includes a much more efficient implementation using a single array rather than a set of Vectors.

Constructors

Attributes()

Construct a new, empty Attributes object.

Declaration

public Attributes()

Attributes(IAttributes)

Copy an existing Attributes object.

This constructor is especially useful inside a StartElement(String, String, String, IAttributes).

Declaration

public Attributes(IAttributes atts)

Parameters

Type	Name	Description
IAttributes	atts	The existing Attributes object.

Properties

Length

Return the number of attributes in the list.

Declaration

public virtual int Length { get; }

Property Value

Type	Description
System.Int32

See Also

Length

Methods

AddAttribute(String, String, String, String, String)

Add an attribute to the end of the list.

For the sake of speed, this method does no checking to see if the attribute is already in the list: that is the responsibility of the application.

Declaration

public virtual void AddAttribute(string uri, string localName, string qName, string type, string value)

Parameters

Type	Name	Description
System.String	uri	The Namespace URI, or the empty string if none is available or Namespace processing is not being performed.
System.String	localName	The local name, or the empty string if Namespace processing is not being performed.
System.String	qName	The qualified (prefixed) name, or the empty string if qualified names are not available.
System.String	type	The attribute type as a string.
System.String	value	The attribute value.

Clear()

Clear the attribute list for reuse.

Note that little memory is freed by this call: the current array is kept so it can be reused.

Declaration

public virtual void Clear()

GetIndex(String)

Look up an attribute's index by qualified (prefixed) name.

Declaration

public virtual int GetIndex(string qName)

Parameters

Type	Name	Description
System.String	qName	The qualified name.

Returns

Type	Description
System.Int32	The attribute's index, or -1 if none matches.

See Also

GetIndex(String)

GetIndex(String, String)

Look up an attribute's index by Namespace name.

Declaration

public virtual int GetIndex(string uri, string localName)

Parameters

Type	Name	Description
System.String	uri	The attribute's Namespace URI, or the empty string if none is available.
System.String	localName	The attribute's local name.

Returns

Type	Description
System.Int32	The attribute's index, or -1 if none matches.

Remarks

In many cases, it will be more efficient to look up the name once and use the index query methods rather than using the name query methods repeatedly.

See Also

GetIndex(String, String)

GetLocalName(Int32)

Return an attribute's local name.

Declaration

public virtual string GetLocalName(int index)

Parameters

Type	Name	Description
System.Int32	index	The attribute's index (zero-based).

Returns

Type	Description
System.String	The attribute's local name, the empty string if none is available, or null if the index if out of range.

See Also

GetLocalName(Int32)

GetQName(Int32)

Return an attribute's qualified (prefixed) name.

Declaration

public virtual string GetQName(int index)

Parameters

Type	Name	Description
System.Int32	index	The attribute's index (zero-based).

Returns

Type	Description
System.String	The attribute's qualified name, the empty string if none is available, or null if the index is out of bounds.

See Also

GetQName(Int32)

GetType(Int32)

Return an attribute's type by index.

Declaration

public virtual string GetType(int index)

Parameters

Type	Name	Description
System.Int32	index	The attribute's index (zero-based).

Returns

Type	Description
System.String	The attribute's type, "CDATA" if the type is unknown, or null if the index is out of bounds.

See Also

GetType(Int32)

GetType(String)

Look up an attribute's type by qualified (prefixed) name.

Declaration

public virtual string GetType(string qName)

Parameters

Type	Name	Description
System.String	qName	The qualified name.

Returns

Type	Description
System.String	The attribute's type, or null if there is no matching attribute.

See Also

GetType(String)

GetType(String, String)

Look up an attribute's type by Namespace-qualified name.

Declaration

public virtual string GetType(string uri, string localName)

Parameters

Type	Name	Description
System.String	uri	The Namespace URI, or the empty string for a name with no explicit Namespace URI.
System.String	localName	The local name.

Returns

Type	Description
System.String	The attribute's type, or null if there is no matching attribute.

See Also

GetType(String, String)

GetURI(Int32)

Return an attribute's Namespace URI.

Declaration

public virtual string GetURI(int index)

Parameters

Type	Name	Description
System.Int32	index	The attribute's index (zero-based).

Returns

Type	Description
System.String	The Namespace URI, the empty string if none is available, or null if the index is out of range.

See Also

GetURI(Int32)

GetValue(Int32)

Return an attribute's value by index.

Declaration

public virtual string GetValue(int index)

Parameters

Type	Name	Description
System.Int32	index	The attribute's index (zero-based).

Returns

Type	Description
System.String	The attribute's value or null if the index is out of bounds.

See Also

GetValue(Int32)

GetValue(String)

Look up an attribute's value by qualified (prefixed) name.

Declaration

public virtual string GetValue(string qName)

Parameters

Type	Name	Description
System.String	qName	The qualified name.

Returns

Type	Description
System.String	The attribute's value, or null if there is no matching attribute.

See Also

GetValue(String)

GetValue(String, String)

Look up an attribute's value by Namespace-qualified name.

Declaration

public virtual string GetValue(string uri, string localName)

Parameters

Type	Name	Description
System.String	uri	The Namespace URI, or the empty string for a name with no explicit Namespace URI.
System.String	localName	The local name.

Returns

Type	Description
System.String	The attribute's value, or null if there is no matching attribute.

See Also

GetValue(String, String)

RemoveAttribute(Int32)

Remove an attribute from the list.

Declaration

public virtual void RemoveAttribute(int index)

Parameters

Type	Name	Description
System.Int32	index	The index of the attribute (zero-based).

SetAttribute(Int32, String, String, String, String, String)

Set an attribute in the list.

For the sake of speed, this method does no checking for name conflicts or well-formedness: such checks are the responsibility of the application.

Declaration

public virtual void SetAttribute(int index, string uri, string localName, string qName, string type, string value)

Parameters

Type	Name	Description
System.Int32	index	The index of the attribute (zero-based).
System.String	uri	The Namespace URI, or the empty string if none is available or Namespace processing is not being performed.
System.String	localName	The local name, or the empty string if Namespace processing is not being performed.
System.String	qName	The qualified name, or the empty string if qualified names are not available.
System.String	type	The attribute type as a string.
System.String	value	The attribute value.

SetAttributes(IAttributes)

Copy an entire Attributes object.

It may be more efficient to reuse an existing object rather than constantly allocating new ones.

Declaration

public virtual void SetAttributes(IAttributes atts)

Parameters

Type	Name	Description
IAttributes	atts	The attributes to copy.

SetLocalName(Int32, String)

Set the local name of a specific attribute.

Declaration

public virtual void SetLocalName(int index, string localName)

Parameters

Type	Name	Description
System.Int32	index	The index of the attribute (zero-based).
System.String	localName	The attribute's local name, or the empty string for none.

SetQName(Int32, String)

Set the qualified name of a specific attribute.

Declaration

public virtual void SetQName(int index, string qName)

Parameters

Type	Name	Description
System.Int32	index	The index of the attribute (zero-based).
System.String	qName	The attribute's qualified name, or the empty string for none.

SetType(Int32, String)

Set the type of a specific attribute.

Declaration

public virtual void SetType(int index, string type)

Parameters

Type	Name	Description
System.Int32	index	The index of the attribute (zero-based).
System.String	type	The attribute's type.

SetURI(Int32, String)

Set the Namespace URI of a specific attribute.

Declaration

public virtual void SetURI(int index, string uri)

Parameters

Type	Name	Description
System.Int32	index	The index of the attribute (zero-based).
System.String	uri	The attribute's Namespace URI, or the empty string for none.

SetValue(Int32, String)

Set the value of a specific attribute.

Declaration

public virtual void SetValue(int index, string value)

Parameters

Type	Name	Description
System.Int32	index	The index of the attribute (zero-based).
System.String	value	The attribute's value.

Implements

IAttributes