Module datarush.library
Package 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 Details

    • 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