gate.jape
Class BasicPatternElement

java.lang.Object
  gate.jape.PatternElement
      gate.jape.BasicPatternElement

All Implemented Interfaces:

JapeConstants, Serializable, Cloneable

public class BasicPatternElement
extends PatternElement
implements JapeConstants, Serializable

A pattern element within curly braces. Has a set of Constraint, which all must be satisfied at whatever position the element is being matched at.

See Also:

Serialized Form

Field Summary

private ArrayList<Constraint>	constraints1 A set of Constraint.
private Constraint[]	constraints2 A set of Constraint.
private HashMap<Object,Constraint>	constraintsMap A map of constraint annot type to constraint.
private static boolean	DEBUG Debug flag
private int	lastFailurePoint Cache of the last position we failed at (-1 when none).
private AnnotationSet	matchedAnnots The set of annotations we have matched.

Fields inherited from class gate.jape.PatternElement

matchHistory

Fields inherited from interface gate.jape.JapeConstants

ALL_STYLE, APPELT_STYLE, BRILL_STYLE, DEFAULT_PRIORITY, FIRST_STYLE, INDENT_PADDING, KLEENE_PLUS, KLEENE_QUERY, KLEENE_STAR, MULTI_SPAN_BINDING, NO_BINDING, NO_KLEENE_OP, ONCE_STYLE, SINGLE_SPAN_BINDING

Constructor Summary

BasicPatternElement()
Construction.

Method Summary

void	addConstraint(Constraint newConstraint) Add a constraint.
Object	clone() Need cloning for processing of macro references.
void	finish() Finish: replace dynamic data structures with Java arrays; called after parsing.
Constraint[]	getConstraints() Get the finished Constraint objects.
ArrayList<Constraint>	getUnfinishedConstraints() Get the current list of unfinished Constraint objects.
boolean	isMultiType() Indicates whether this constraint deals with only one type of annotation or multiple types.
String	shortDesc() Returns a short description.
String	toString() Create a string representation of the object.
String	toString(String pad) Create a string representation of the object.

Methods inherited from class java.lang.Object

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

Field Detail

DEBUG

private static final boolean DEBUG

Debug flag

See Also:

Constant Field Values

constraints1

private ArrayList<Constraint> constraints1

A set of Constraint. Used during parsing.

constraints2

private Constraint[] constraints2

A set of Constraint. Used during matching.

constraintsMap

private HashMap<Object,Constraint> constraintsMap

A map of constraint annot type to constraint. Used during parsing.

lastFailurePoint

private int lastFailurePoint

Cache of the last position we failed at (-1 when none).

matchedAnnots

private AnnotationSet matchedAnnots

The set of annotations we have matched.

Constructor Detail

BasicPatternElement

public BasicPatternElement()

Construction.

Method Detail

clone

public Object clone()

Need cloning for processing of macro references. See comments on PatternElement.clone()

Overrides:

clone in class PatternElement

addConstraint

public void addConstraint(Constraint newConstraint)

Add a constraint. Ensures that only one constraint of any given annotation type and negation state exists.

isMultiType

public boolean isMultiType()

Indicates whether this constraint deals with only one type of annotation or multiple types.

finish

public void finish()

Finish: replace dynamic data structures with Java arrays; called after parsing.

Specified by:

finish in class PatternElement

toString

public String toString()

Create a string representation of the object.

Overrides:

toString in class Object

toString

public String toString(String pad)

Create a string representation of the object.

Specified by:

toString in class PatternElement

shortDesc

public String shortDesc()

Returns a short description.

getUnfinishedConstraints

public ArrayList<Constraint> getUnfinishedConstraints()

Get the current list of unfinished Constraint objects. This can only be used before the finish() method is used.

Returns:

the array list of constraint objects. Will be null after the finish() method has been used.

getConstraints

public Constraint[] getConstraints()

Get the finished Constraint objects. Can only be used after the finish() method has been used.

Returns:

an array of constraint objects. Will be null before the finish() method has been used.