| org.apache.xpath.axes.PredicatedNodeTest
 org.apache.xpath.axes.LocPathIterator
org.apache.xpath.axes.UnionPathIterator
| Constructor Summary | |
| public | UnionPathIterator()
Constructor to create an instance which you can add location paths to. | | public | UnionPathIterator(Compiler compiler, int opPos)
Create a UnionPathIterator object, including creation
of location path iterators from the opcode list, and call back
into the Compiler to create predicate expressions. |
| Method Summary | |
| public void | addIterator(DTMIterator expr)
Add an iterator to the union list. | | public void | callVisitors(ExpressionOwner owner, XPathVisitor visitor)
| | public Object | clone()
Get a cloned LocPathIterator that holds the same
position as this iterator. | | protected LocPathIterator | createDTMIterator(Compiler compiler, int opPos)
Create a new location path iterator. | | public static LocPathIterator | createUnionIterator(Compiler compiler, int opPos)
This will return an iterator capable of handling the union of paths given.
Parameters:
compiler - The Compiler which is creating this expression.
Parameters:
opPos - The position of this iterator in the opcode list from the compiler. | | public boolean | deepEquals(Expression expr)
| | public void | detach()
Detaches the iterator from the set which it iterated over, releasing
any computational resources and placing the iterator in the INVALID
state. | | public void | fixupVariables(java.util.Vector vars, int globalsSize)
This function is used to fixup variables from QNames to stack frame
indexes at stylesheet build time.
Parameters:
vars - List of QNames that correspond to variables. | | public int | getAnalysisBits()
Get the analysis bits for this walker, as defined in the WalkerFactory. | | public int | getAxis()
Returns the axis being iterated, if it is known. | | protected void | loadLocationPaths(Compiler compiler, int opPos, int count)
Initialize the location path iterators. | | public int | nextNode()
Returns the next node in the set and advances the position of the
iterator in the set. | | public void | setRoot(int context, Object environment)
Initialize the context values for this expression
after it is cloned. |
| serialVersionUID | | final static long serialVersionUID(Code) | | |
| UnionPathIterator | | public UnionPathIterator()(Code) | | Constructor to create an instance which you can add location paths to.
|
| UnionPathIterator | | public UnionPathIterator(Compiler compiler, int opPos) throws javax.xml.transform.TransformerException(Code) | | Create a UnionPathIterator object, including creation
of location path iterators from the opcode list, and call back
into the Compiler to create predicate expressions.
Parameters:
compiler - The Compiler which is creating this expression.
Parameters:
opPos - The position of this iterator in the opcode list from the compiler.
throws:
javax.xml.transform.TransformerException - |
| addIterator | | public void addIterator(DTMIterator expr)(Code) | | Add an iterator to the union list.
Parameters:
expr - non-null reference to a location path iterator. |
| detach | | public void detach()(Code) | | Detaches the iterator from the set which it iterated over, releasing
any computational resources and placing the iterator in the INVALID
state. Afterdetach has been invoked, calls to
nextNode orpreviousNode will raise the
exception INVALID_STATE_ERR.
|
| fixupVariables | | public void fixupVariables(java.util.Vector vars, int globalsSize)(Code) | | This function is used to fixup variables from QNames to stack frame
indexes at stylesheet build time.
Parameters:
vars - List of QNames that correspond to variables. This list should be searched backwards for the first qualified name that corresponds to the variable reference qname. The position of the QName in the vector from the start of the vector will be its position in the stack frame (but variables above the globalsTop value will need to be offset to the current stack frame). |
| getAnalysisBits | | public int getAnalysisBits()(Code) | | Get the analysis bits for this walker, as defined in the WalkerFactory.
One of WalkerFactory#BIT_DESCENDANT, etc. |
| getAxis | | public int getAxis()(Code) | | Returns the axis being iterated, if it is known.
Axis.CHILD, etc., or -1 if the axis is not known or is of multiple types. |
| nextNode | | public int nextNode()(Code) | | Returns the next node in the set and advances the position of the
iterator in the set. After a DTMIterator is created, the first call
to nextNode() returns the first node in the set.
The next Node in the set being iterated over, ornull if there are no more members in that set. |
| setRoot | | public void setRoot(int context, Object environment)(Code) | | Initialize the context values for this expression
after it is cloned.
Parameters:
context - The XPath runtime context for this transformation. |
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