us.codecraft.webmagic.model.annotation

Annotation Type ExtractByUrl

@Retention(value=RUNTIME)
 @Target(value=FIELD)
public @interface ExtractByUrl

Define a extractor to extract data in url of current page. Only regex can be used.

Since:

0.2.0

Author:

code4crafter@gmail.com

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
boolean	multi Deprecated. since 0.4.2
boolean	notNull Define whether the field can be null. If set to 'true' and the extractor get no result, the entire class will be discarded.
String	value Extractor expression, only regex can be used

Element Detail

value

public abstract String value

Extractor expression, only regex can be used

Returns:

extractor expression

Default:

""

notNull

public abstract boolean notNull

Define whether the field can be null.
If set to 'true' and the extractor get no result, the entire class will be discarded.

Returns:

whether the field can be null

Default:

false

multi

public abstract boolean multi

Deprecated. since 0.4.2

Define whether the extractor return more than one result. When set to 'true', the extractor return a list of string (so you should define the field as List).
Deprecated since 0.4.2. This option is determined automatically by the class of field.

Returns:

whether the extractor return more than one result

Default:

false