org.apache.jackrabbit.spi.commons.name

Class Pattern

java.lang.Object

org.apache.jackrabbit.spi.commons.name.Pattern

public abstract class Pattern
extends java.lang.Object

Pattern to match normalized Paths. A pattern matches either a constant path, a name of a path element, a selection of either of two patterns or a sequence of two patterns. The matching process is greedy. That is, whenever a match is not unique only the longest match is considered. Matching consumes as many elements from the beginning of an input path as possible and returns what's left as an instance of MatchResult. Use the Matcher class for matching a whole path or finding matches inside a path.

Constructor Summary

Constructors

Constructor and Description
Pattern()

Method Summary

Modifier and Type	Method and Description
static Pattern	all() A pattern which matches all input.
MatchResult	match(Path input) Matches this pattern against the input.
static Pattern	name(Name name) Construct a new pattern which matches a path element of a given name
static Pattern	name(java.lang.String namespaceUri, java.lang.String localName) Constructs a pattern which matches a path elements against regular expressions.
static Pattern	nothing() A pattern which matches nothing.
static Pattern	path(Path path) Construct a new pattern which matches an exact path
static Pattern	repeat(Pattern pattern) A pattern which matches pattern as many times as possible
static Pattern	repeat(Pattern pattern, int min, int max) A pattern which matches pattern as many times as possible but at least min times and at most max times.
static Pattern	selection(Pattern pattern1, Pattern pattern2) A pattern which matches pattern1 followed by pattern2 and returns the longer of the two matches.
static Pattern	sequence(Pattern pattern1, Pattern pattern2) A pattern which matches pattern1 followed by pattern2.

Methods inherited from class java.lang.Object

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

Constructor Detail

Pattern

public Pattern()

Method Detail

match

public MatchResult match(Path input)

Matches this pattern against the input.

Parameters:

input - path to match with this pattern

Returns:

result from the matching pattern against input

Throws:

java.lang.IllegalArgumentException - if input is not normalized

path

public static Pattern path(Path path)

Construct a new pattern which matches an exact path

Parameters:

path -

Returns:

A pattern which matches path and nothing else

Throws:

java.lang.IllegalArgumentException - if path is null

name

public static Pattern name(Name name)

Construct a new pattern which matches a path element of a given name

Parameters:

name -

Returns:

A pattern which matches a path element with name name

Throws:

java.lang.IllegalArgumentException - if name is null

name

public static Pattern name(java.lang.String namespaceUri,
                           java.lang.String localName)

Constructs a pattern which matches a path elements against regular expressions.

Parameters:

namespaceUri - A regular expression used for matching the name space URI of a path element.

localName - A regular expression used for matching the local name of a path element

Returns:

A pattern which matches a path element if namespaceUri matches the name space URI of the path element and localName matches the local name of the path element.

Throws:

java.lang.IllegalArgumentException - if either namespaceUri or localName is null

See Also:

Pattern

all

public static Pattern all()

A pattern which matches all input.

Returns:

nothing

public static Pattern nothing()

A pattern which matches nothing.

Returns:

selection

public static Pattern selection(Pattern pattern1,
                                Pattern pattern2)

A pattern which matches pattern1 followed by pattern2 and returns the longer of the two matches.

Parameters:

pattern1 -

pattern2 -

Returns:

Throws:

java.lang.IllegalArgumentException - if either argument is null

sequence

public static Pattern sequence(Pattern pattern1,
                               Pattern pattern2)

A pattern which matches pattern1 followed by pattern2.

Parameters:

pattern1 -

pattern2 -

Returns:

repeat

public static Pattern repeat(Pattern pattern)

A pattern which matches pattern as many times as possible

Parameters:

pattern -

Returns:

repeat

public static Pattern repeat(Pattern pattern,
                             int min,
                             int max)

A pattern which matches pattern as many times as possible but at least min times and at most max times.

Parameters:

pattern -

min -

max -

Returns: