com.pervasive.datarush.graphs

Class GraphPaths

java.lang.Object

com.pervasive.datarush.graphs.GraphPaths

public class GraphPaths
extends Object

Factory for generating paths which provides for a standard separator and an escaping mechanism. All names in an path are escaped which ensures GraphPath.toString() and parse(String) are inverses.

Method Summary

Modifier and Type	Method and Description
static String	first(GraphPath path) Returns the first element of the path
static String	last(GraphPath path) Returns the last element of the path
static GraphPath	parse(String pathString) De-serializes a path from the given string.
static GraphPath	path(String... names) Create a path containing the given sequence of names.
static GraphPath	path(String name) Create a path containing a single name.
static GraphPath	remainder(GraphPath path) Returns a GraphPath consisting of all but the first element of the path

Methods inherited from class java.lang.Object

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

Method Detail

first

public static String first(GraphPath path)

Returns the first element of the path

Parameters:

path - the graph path

Returns:

the first element of the path

last

public static String last(GraphPath path)

Returns the last element of the path

Parameters:

path - the graph path

Returns:

the last element of the path

remainder

public static GraphPath remainder(GraphPath path)

Returns a GraphPath consisting of all but the first element of the path

Parameters:

path - the original path

Returns:

all but the first element of the path

Throws:

IllegalArgumentException - if the path does not have at least two elements

path

public static final GraphPath path(String name)

Create a path containing a single name.

Parameters:

name - The name to convert to a path

Returns:

A path consisting only of name

path

public static final GraphPath path(String... names)

Create a path containing the given sequence of names.

Parameters:

names - An array of names to convert to a path

Returns:

A path consisting of the elements of names in their original order

parse

public static final GraphPath parse(String pathString)

De-serializes a path from the given string.

Parameters:

pathString - String serialization of a path

Returns:

The path whose serialization is pathString