Top Description Fields Constructors Methods
com.sun.msv.grammar

public abstract Class BinaryExp

extends Expression
Class Inheritance
Known Direct Subclasses
com.sun.msv.grammar.ChoiceExp, com.sun.msv.grammar.ConcurExp, com.sun.msv.grammar.InterleaveExp, com.sun.msv.grammar.SequenceExp
Imports
java.util.Iterator

Base implementation for those expression which has two child expressions.
Author
Kohsuke KAWAGUCHI

Field Summary

Modifier and TypeField and Description
public final Expression
public final Expression
private static final long
Inherited from com.sun.msv.grammar.Expression:
anyStringepsilonnullSetverifierTag

Constructor Summary

AccessConstructor and Description
public

Method Summary

Modifier and TypeMethod and Description
protected final int
calcHashCode()

Implements abstract com.sun.msv.grammar.Expression.calcHashCode.

Computes the hashCode again.
public Iterator<Expression>
children()

iterates all child expressions.

public boolean
equals(Object
the reference object with which to compare.
o
)

Implements abstract com.sun.msv.grammar.Expression.equals.

Indicates whether some other object is "equal to" this one.
public Expression[]
getChildren()

returns all child expressions in one array.

Inherited from com.sun.msv.grammar.Expression:
calcEpsilonReducibilitygetExpandedExphashCodehashCodehashCodeisEpsilonReduciblepeelOccurencereadResolvevisitvisitvisitvisitvisitvisitvisitvisit

Field Detail

exp1back to summary
public final Expression exp1
exp2back to summary
public final Expression exp2
serialVersionUIDback to summary
private static final long serialVersionUID

Hides com.sun.msv.grammar.Expression.serialVersionUID.

Constructor Detail

BinaryExpback to summary
public BinaryExp(Expression left, Expression right)

Method Detail

calcHashCodeback to summary
protected final int calcHashCode()

Implements abstract com.sun.msv.grammar.Expression.calcHashCode.

Doc from com.sun.msv.grammar.Expression.calcHashCode.

Computes the hashCode again.

This method and the parameter to the constructor has to be the same. This method is used when the object is being read from the stream.

childrenback to summary
public Iterator<Expression> 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)

equalsback to summary
public boolean equals(Object o)

Implements abstract com.sun.msv.grammar.Expression.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
o:Object

the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

getChildrenback to summary
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.