us.codecraft.webmagic.model.annotation

Annotation Type ComboExtract

@Retention(value=RUNTIME)
@Target(value={FIELD,TYPE})
public @interface ComboExtract

Combo 'ExtractBy' extractor with and/or operator.

Since:

0.2.1

Required Element Summary

Required Elements

Modifier and Type	Required Element and Description
ExtractBy[]	value The extractors to be combined.

Optional Element Summary

Optional Elements

Modifier and Type	Optional Element and Description
boolean	multi Define whether the extractor return more than one result.
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.
ComboExtract.Op	op Combining operation of extractors.
ComboExtract.Source	source The source for extracting.

Element Detail

value

public abstract ExtractBy[] value

The extractors to be combined.

Returns:

the extractors to be combined

op

public abstract ComboExtract.Op op

Combining operation of extractors.

Returns:

combining operation of extractors

Default:

us.codecraft.webmagic.model.annotation.ComboExtract.Op.And

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

source

public abstract ComboExtract.Source source

The source for extracting.
It works only if you already added 'ExtractBy' to Class.

Returns:

the source for extracting

Default:

us.codecraft.webmagic.model.annotation.ComboExtract.Source.SelectedHtml

multi

public abstract boolean multi

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).

Returns:

whether the extractor return more than one result

Default:

false