com.sun.msv.grammar
Class BinaryExp

java.lang.Object
  |
  +--com.sun.msv.grammar.Expression
        |
        +--com.sun.msv.grammar.BinaryExp

All Implemented Interfaces:

Serializable

Direct Known Subclasses:

ChoiceExp, ConcurExp, InterleaveExp, SequenceExp

public abstract class BinaryExp

extends Expression

Base implementation for those expression which has two child expressions.

Author:

Kohsuke KAWAGUCHI

See Also:

Serialized Form

Field Summary

Expression	exp1
Expression	exp2

Fields inherited from class com.sun.msv.grammar.Expression

anyString, epsilon, nullSet, verifierTag

Constructor Summary

BinaryExp(Expression left, Expression right, int hashKey)

Method Summary

Iterator	children() iterates all child expressions.
boolean	equals(Object o)
Expression[]	getChildren() returns all child expressions in one array.

Methods inherited from class com.sun.msv.grammar.Expression

hashCode, isEpsilonReducible, visit, visit, visit, visit, visit, visit, visit, visit

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, toString, wait, wait, wait

Field Detail

exp1

public final Expression exp1

exp2

public final Expression exp2

Constructor Detail

BinaryExp

public BinaryExp(Expression left,
                 Expression right,
                 int hashKey)

Method Detail

equals

public boolean equals(Object o)

Overrides:

equals in class Expression

getChildren

public Expression[] getChildren()

returns all child expressions in one array. This method is similar to the children method but it returns an array that contains all children instead of an iterator object.

children

public Iterator children()

iterates all child expressions. Since expressions are binarized, expressions like A|B|C is modeled as A|(B|C). This is may not be preferable for some applications.

This method returns an iterator that iterates all children (A,B, and C in this example)