Package org.jsoup.nodes

Class Attribute

java.lang.Object

org.jsoup.nodes.Attribute

All Implemented Interfaces:

Cloneable, Map.Entry<String,String>

public class Attribute
extends Object
implements Map.Entry<String,String>, Cloneable

A single key + value attribute. (Only used for presentation.)

Constructor Summary

Constructors

Constructor	Description
Attribute(String key, String value)	Create a new attribute from unencoded (raw) key and value.
Attribute(String key, String val, Attributes parent)	Create a new attribute from unencoded (raw) key and value.

Method Summary

Modifier and Type	Method	Description
Attribute	clone()
static Attribute	createFromEncoded(String unencodedKey, String encodedValue)	Create a new Attribute from an unencoded key and a HTML attribute encoded value.
boolean	equals(Object o)
String	getKey()	Get the attribute key.
static String	getValidKey(String key, Document.OutputSettings.Syntax syntax)
String	getValue()	Get the attribute value.
boolean	hasDeclaredValue()	Check if this Attribute has a value.
int	hashCode()
String	html()	Get the HTML representation of this attribute; e.g.
protected void	html(Appendable accum, Document.OutputSettings out)
protected static void	html(String key, String val, Appendable accum, Document.OutputSettings out)
static boolean	isBooleanAttribute(String key)	Checks if this attribute name is defined as a boolean attribute in HTML5
protected boolean	isDataAttribute()
protected static boolean	isDataAttribute(String key)
void	setKey(String key)	Set the attribute key; case is preserved.
String	setValue(String val)	Set the attribute value.
protected static boolean	shouldCollapseAttribute(String key, String val, Document.OutputSettings out)
protected final boolean	shouldCollapseAttribute(Document.OutputSettings out)	Collapsible if it's a boolean attribute and value is empty or same as name
String	toString()	Get the string representation of this attribute, implemented as html().

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Details

Attribute

public Attribute(String key,
 @Nullable
 String value)

Create a new attribute from unencoded (raw) key and value.

Parameters:

key - attribute key; case is preserved.

value - attribute value (may be null)

See Also:

• createFromEncoded(java.lang.String, java.lang.String)

Attribute

public Attribute(String key,
 @Nullable
 String val,
 @Nullable
 Attributes parent)

Create a new attribute from unencoded (raw) key and value.

Parameters:

key - attribute key; case is preserved.

val - attribute value (may be null)

parent - the containing Attributes (this Attribute is not automatically added to said Attributes)

See Also:

• createFromEncoded(java.lang.String, java.lang.String)

Method Details

getKey

public String getKey()

Get the attribute key.

Specified by:

getKey in interface Map.Entry<String,String>

Returns:

the attribute key

setKey

public void setKey(String key)

Set the attribute key; case is preserved.

Parameters:

key - the new key; must not be null

getValue

public String getValue()

Get the attribute value. Will return an empty string if the value is not set.

Specified by:

getValue in interface Map.Entry<String,String>

Returns:

the attribute value

hasDeclaredValue

public boolean hasDeclaredValue()

Check if this Attribute has a value. Set boolean attributes have no value.

Returns:

if this is a boolean attribute / attribute without a value

setValue

public String setValue(@Nullable
 String val)

Set the attribute value.

Specified by:

setValue in interface Map.Entry<String,String>

Parameters:

val - the new attribute value; may be null (to set an enabled boolean attribute)

Returns:

the previous value (if was null; an empty string)

html

public String html()

Get the HTML representation of this attribute; e.g. href="index.html".

Returns:

HTML

html

protected void html(Appendable accum,
 Document.OutputSettings out)
             throws IOException

Throws:

IOException

html

protected static void html(String key,
 @Nullable
 String val,
 Appendable accum,
 Document.OutputSettings out)
                    throws IOException

Throws:

IOException

getValidKey

@Nullable
public static String getValidKey(String key,
 Document.OutputSettings.Syntax syntax)

toString

public String toString()

Get the string representation of this attribute, implemented as html().

Overrides:

toString in class Object

Returns:

string

createFromEncoded

public static Attribute createFromEncoded(String unencodedKey,
 String encodedValue)

Create a new Attribute from an unencoded key and a HTML attribute encoded value.

Parameters:

unencodedKey - assumes the key is not encoded, as can be only run of simple \w chars.

encodedValue - HTML attribute encoded value

Returns:

attribute

isDataAttribute

protected boolean isDataAttribute()

isDataAttribute

protected static boolean isDataAttribute(String key)

shouldCollapseAttribute

protected final boolean shouldCollapseAttribute(Document.OutputSettings out)

Collapsible if it's a boolean attribute and value is empty or same as name

Parameters:

out - output settings

Returns:

Returns whether collapsible or not

shouldCollapseAttribute

protected static boolean shouldCollapseAttribute(String key,
 @Nullable
 String val,
 Document.OutputSettings out)

isBooleanAttribute

public static boolean isBooleanAttribute(String key)

Checks if this attribute name is defined as a boolean attribute in HTML5

equals

public boolean equals(@Nullable
 Object o)

Specified by:

equals in interface Map.Entry<String,String>

Overrides:

equals in class Object

hashCode

public int hashCode()

Specified by:

hashCode in interface Map.Entry<String,String>

Overrides:

hashCode in class Object

clone

public Attribute clone()

Overrides:

clone in class Object