org.dbpedia.extraction.wikiparser

Node

class Node extends AnyRef

Base class of all nodes in the abstract syntax tree. This class is thread-safe.

attributes: abstract
known subclasses: TextNode, TemplateNode, TableRowNode, TableNode, TableCellNode, SectionNode, PropertyNode, PageNode, LinkNode

Inherits

  1. AnyRef
  2. Any

Value Members

  1. def annotation(key: String): Option[Any]

  2. val children: List[Node]

  3. def equals(arg0: Any): Boolean

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence

    This method is used to compare the receiver object (this) with the argument object (arg0) for equivalence.

    The default implementations of this method is an equivalence relation:

    • It is reflexive: for any instance x of type Any, x.equals(x) should return true.
    • It is symmetric: for any instances x and y of type Any, x.equals(y) should return true if and only if y.equals(x) returns true.
    • It is transitive: for any instances x, y, and z of type AnyRef if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.

    If you override this method, you should verify that your implementation remains an equivalence relation. Additionally, when overriding this method it is often necessary to override hashCode to ensure that objects that are "equal" (o1.equals(o2) returns true) hash to the same Int (o1.hashCode.equals(o2.hashCode)).

    arg0

    the object to compare against this object for equality.

    returns

    true if the receiver object is equivalent to the argument; false otherwise.

    definition classes: AnyRef ⇐ Any
  4. def hashCode(): Int

    Returns a hash code value for the object

    Returns a hash code value for the object.

    The default hashing algorithm is platform dependent.

    Note that it is allowed for two objects to have identical hash codes (o1.hashCode.equals(o2.hashCode)) yet not be equal (o1.equals(o2) returns false). A degenerate implementation could always return 0. However, it is required that if two objects are equal (o1.equals(o2) returns true) that they have identical hash codes (o1.hashCode.equals(o2.hashCode)). Therefore, when overriding this method, be sure to verify that the behavior is consistent with the equals method.

    definition classes: AnyRef ⇐ Any
  5. val line: Int

  6. def parent: Node

    The parent node

    The parent node.

  7. def parent_=(n: Node): Unit

  8. def retrieveText: Option[String]

    Retrieves the text denoted by this node

    Retrieves the text denoted by this node. Only works on nodes that only contain text. Returns null if this node contains child nodes other than TextNode.

  9. def root: PageNode

    Retrieves the root node of this AST

    Retrieves the root node of this AST.

  10. def section: SectionNode

    Retrieves the section of this node

    Retrieves the section of this node

  11. def setAnnotation(key: String, value: Any): Unit

    Sets a user-defined annotation

    Sets a user-defined annotation.

    key

    The key of the annotation

    value

    The value of the annotation

  12. def sourceUri: String

    URL of source page and line number

    URL of source page and line number.

  13. def sourceUriPrefix: String

    Get first part of source URL

    Get first part of source URL. Needed for SPARUL DELETE statement. TODO: It's ugly to have such a special-purpose function here. Is there a better way?

  14. def toString(): String

    Returns a string representation of the object

    Returns a string representation of the object.

    The default representation is platform dependent.

    definition classes: AnyRef ⇐ Any

Instance constructors

  1. new Node(children: List[Node], line: Int)

  2. new Node()