Package schema2template.grammar

Class MSVExpressionIterator

java.lang.Object

schema2template.grammar.MSVExpressionIterator

All Implemented Interfaces:

Iterator<com.sun.msv.grammar.Expression>

public final class MSVExpressionIterator
extends Object
implements Iterator<com.sun.msv.grammar.Expression>

Traversing through the MSV expression tree using See depth-first_search similar to reading the grammar in XML document order.

1. First trying to get the child (going as deep as possible)
2. Second if no child is available, trying to get the next sibling
3. If no sibling available, get a sibling of the parent (going back to step 1)

Also has the ability to limit iteration to given subclasses and to limit subtree to the next element expressions below.

Field Summary

Fields

Modifier and Type	Field	Description
static final boolean	ALL_SUBTREE
static final boolean	DIRECT_CHILDREN_ONLY

Constructor Summary

Constructors

Constructor	Description
MSVExpressionIterator(com.sun.msv.grammar.Expression root)	Iterate through the expression tree
MSVExpressionIterator(com.sun.msv.grammar.Expression root, Class desiredExpression)	Iterate through the expression tree, but only return objects of desiredExpression
MSVExpressionIterator(com.sun.msv.grammar.Expression root, Class desiredExpression, boolean onlyChildren)	Iterate..., but only return objects of desiredExpression and (if not onlyChildren) don't go to children of ElementExp elements (this does not concern root node!).

Method Summary

Modifier and Type	Method	Description
int	getDepth()
boolean	hasNext()
com.sun.msv.grammar.Expression	next()
void	remove()

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.util.Iterator

forEachRemaining

Field Details

ALL_SUBTREE

public static final boolean ALL_SUBTREE

See Also:

• Constant Field Values

DIRECT_CHILDREN_ONLY

public static final boolean DIRECT_CHILDREN_ONLY

See Also:

• Constant Field Values

Constructor Details

MSVExpressionIterator

public MSVExpressionIterator(com.sun.msv.grammar.Expression root)

Iterate through the expression tree

Parameters:

root - Expression root

MSVExpressionIterator

public MSVExpressionIterator(com.sun.msv.grammar.Expression root,
 Class desiredExpression)

Iterate through the expression tree, but only return objects of desiredExpression

Parameters:

root - Expression root

desiredExpression - Limit returned expressions to subclasses of desiredExpression

MSVExpressionIterator

public MSVExpressionIterator(com.sun.msv.grammar.Expression root,
 Class desiredExpression,
 boolean onlyChildren)

Iterate..., but only return objects of desiredExpression and (if not onlyChildren) don't go to children of ElementExp elements (this does not concern root node!).

Example: Root is table:table. If you choose onlyChildren=false and to limit desiredExpression=ElementExp.class, then you will get all direct element children of table:table, like table:table-row. But you won't get the children of table:table-row.

Parameters:

root - Expression root

desiredExpression - Limit returned expressions to subclasses of desiredExpression

onlyChildren - if only children should be returned

Method Details

getDepth

public int getDepth()

hasNext

public boolean hasNext()

Specified by:

hasNext in interface Iterator<com.sun.msv.grammar.Expression>

next

public com.sun.msv.grammar.Expression next()

Specified by:

next in interface Iterator<com.sun.msv.grammar.Expression>

remove

public void remove()

Specified by:

remove in interface Iterator<com.sun.msv.grammar.Expression>