com.fr.ftp.client.parser

类 RegexFTPFileEntryParserImpl

java.lang.Object

com.fr.ftp.client.FTPFileEntryParserImpl

com.fr.ftp.client.parser.RegexFTPFileEntryParserImpl

所有已实现的接口:

FTPFileEntryParser

直接已知子类:

ConfigurableFTPFileEntryParserImpl, EnterpriseUnixFTPEntryParser

public abstract class RegexFTPFileEntryParserImpl
extends FTPFileEntryParserImpl

This abstract class implements both the older FTPFileListParser and newer FTPFileEntryParser interfaces with default functionality. All the classes in the parser subpackage inherit from this. This is the base class for all regular expression based FTPFileEntryParser classes

字段概要

字段

限定符和类型	字段和说明
protected java.util.regex.Matcher	_matcher_ Internal PatternMatcher object used by the parser.

构造器概要

构造器

构造器和说明
RegexFTPFileEntryParserImpl(java.lang.String regex) The constructor for a RegexFTPFileEntryParserImpl object.
RegexFTPFileEntryParserImpl(java.lang.String regex, int flags) The constructor for a RegexFTPFileEntryParserImpl object.

方法概要

方法

限定符和类型	方法和说明
int	getGroupCnt() Convenience method
java.lang.String	getGroupsAsString() For debugging purposes - returns a string shows each match group by number.
java.lang.String	group(int matchnum) Convenience method delegates to the internal MatchResult's group() method.
boolean	matches(java.lang.String s) Convenience method delegates to the internal MatchResult's matches() method.
boolean	setRegex(java.lang.String regex) Alter the current regular expression being utilised for entry parsing and create a new Pattern instance.
boolean	setRegex(java.lang.String regex, int flags) Alter the current regular expression being utilised for entry parsing and create a new Pattern instance.

从类继承的方法 com.fr.ftp.client.FTPFileEntryParserImpl

preParse, readNextEntry

从类继承的方法 java.lang.Object

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

从接口继承的方法 com.fr.ftp.client.FTPFileEntryParser

parseFTPEntry

字段详细资料

_matcher_

protected java.util.regex.Matcher _matcher_

Internal PatternMatcher object used by the parser. It has protected scope in case subclasses want to make use of it for their own purposes.

构造器详细资料

RegexFTPFileEntryParserImpl

public RegexFTPFileEntryParserImpl(java.lang.String regex)

The constructor for a RegexFTPFileEntryParserImpl object. The expression is compiled with flags = 0.

参数:

regex - The regular expression with which this object is initialized.

抛出:

java.lang.IllegalArgumentException - Thrown if the regular expression is unparseable. Should not be seen in normal conditions. It it is seen, this is a sign that a subclass has been created with a bad regular expression. Since the parser must be created before use, this means that any bad parser subclasses created from this will bomb very quickly, leading to easy detection.

RegexFTPFileEntryParserImpl

public RegexFTPFileEntryParserImpl(java.lang.String regex,
                           int flags)

The constructor for a RegexFTPFileEntryParserImpl object.

参数:

regex - The regular expression with which this object is initialized.

flags - the flags to apply, see Pattern.compile(String, int). Use 0 for none.

抛出:

java.lang.IllegalArgumentException - Thrown if the regular expression is unparseable. Should not be seen in normal conditions. It it is seen, this is a sign that a subclass has been created with a bad regular expression. Since the parser must be created before use, this means that any bad parser subclasses created from this will bomb very quickly, leading to easy detection.

从以下版本开始:

3.4

方法详细资料

matches

public boolean matches(java.lang.String s)

Convenience method delegates to the internal MatchResult's matches() method.

参数:

s - the String to be matched

返回:

true if s matches this object's regular expression.

getGroupCnt

public int getGroupCnt()

Convenience method

返回:

the number of groups() in the internal MatchResult.

group

public java.lang.String group(int matchnum)

Convenience method delegates to the internal MatchResult's group() method.

参数:

matchnum - match group number to be retrieved

返回:

the content of the matchnum'th group of the internal match or null if this method is called without a match having been made.

getGroupsAsString

public java.lang.String getGroupsAsString()

For debugging purposes - returns a string shows each match group by number.

返回:

a string shows each match group by number.

setRegex

public boolean setRegex(java.lang.String regex)

Alter the current regular expression being utilised for entry parsing and create a new Pattern instance.

参数:

regex - The new regular expression

返回:

true

抛出:

java.lang.IllegalArgumentException - if the regex cannot be compiled

从以下版本开始:

2.0

setRegex

public boolean setRegex(java.lang.String regex,
               int flags)

Alter the current regular expression being utilised for entry parsing and create a new Pattern instance.

参数:

regex - The new regular expression

flags - the flags to apply, see Pattern.compile(String, int). Use 0 for none.

返回:

true

抛出:

java.lang.IllegalArgumentException - if the regex cannot be compiled

从以下版本开始:

3.4