BlockEventIterator

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java.lang.Object
- net.sf.saxon.evpull.BlockEventIterator

All Implemented Interfaces:

EventIterator, PullEvent
```
public class BlockEventIterator
extends java.lang.Object
implements EventIterator
```
Iterate over the instructions in a Block, concatenating the result of each instruction into a single combined sequence.

Constructor Summary

Constructors
Constructor Description

BlockEventIterator(Expression[] children, XPathContext context)
Create an EventIterator over the results of evaluating a Block

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`isFlatSequence()`	Determine whether the EventIterator returns a flat sequence of events, or whether it can return nested event iterators
`PullEvent`	`next()`	Get the next item in the sequence.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - BlockEventIterator
```
public BlockEventIterator(Expression[] children,
                          XPathContext context)
```
    Create an EventIterator over the results of evaluating a Block
    
    Parameters:
    
    children - the sequence of instructions comprising the Block
    
    context - the XPath dynamic context
- Method Detail
  - next
```
public PullEvent next()
               throws XPathException
```
    Get the next item in the sequence.
    
    Specified by:
    
    next in interface EventIterator
    
    Returns:
    
    the next item, or null if there are no more items.
    
    Throws:
    
    XPathException - if an error occurs retrieving the next item
  - isFlatSequence
```
public boolean isFlatSequence()
```
    Determine whether the EventIterator returns a flat sequence of events, or whether it can return nested event iterators
    
    Specified by:
    
    isFlatSequence in interface EventIterator
    
    Returns:
    
    true if the next() method is guaranteed never to return an EventIterator

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