us.codecraft.webmagic.selector

Class BaseElementSelector

java.lang.Object

us.codecraft.webmagic.selector.BaseElementSelector

All Implemented Interfaces:

ElementSelector, Selector

Direct Known Subclasses:

CssSelector, LinksSelector, XpathSelector

public abstract class BaseElementSelector
extends Object
implements Selector, ElementSelector

Since:

0.3.0

Author:

code4crafter@gmail.com

Constructor Summary

Constructors

Constructor and Description
BaseElementSelector()

Method Summary

Modifier and Type	Method and Description
abstract boolean	hasAttribute()
String	select(String text) Extract single result in text. If there are more than one result, only the first will be chosen.
abstract org.jsoup.nodes.Element	selectElement(org.jsoup.nodes.Element element)
org.jsoup.nodes.Element	selectElement(String text)
abstract List<org.jsoup.nodes.Element>	selectElements(org.jsoup.nodes.Element element)
List<org.jsoup.nodes.Element>	selectElements(String text)
List<String>	selectList(String text) Extract all results in text.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface us.codecraft.webmagic.selector.ElementSelector

select, selectList

Constructor Detail

BaseElementSelector

public BaseElementSelector()

Method Detail

select

public String select(String text)

Description copied from interface: Selector

Extract single result in text.
If there are more than one result, only the first will be chosen.

Specified by:

select in interface Selector

Parameters:

text - text

Returns:

result

selectList

public List<String> selectList(String text)

Description copied from interface: Selector

Extract all results in text.

Specified by:

selectList in interface Selector

Parameters:

text - text

Returns:

results

selectElement

public org.jsoup.nodes.Element selectElement(String text)

selectElements

public List<org.jsoup.nodes.Element> selectElements(String text)

selectElement

public abstract org.jsoup.nodes.Element selectElement(org.jsoup.nodes.Element element)

selectElements

public abstract List<org.jsoup.nodes.Element> selectElements(org.jsoup.nodes.Element element)

hasAttribute

public abstract boolean hasAttribute()