StreamingPatternMaker

java.lang.Object
- com.saxonica.ee.stream.StreamingPatternMaker

```
public class StreamingPatternMaker
extends java.lang.Object
```
Factory class to make a streaming pattern from an expression. This is a variant of the class PatternMaker which handles the special rules for the streaming case.

Constructor Summary

Constructors
Constructor Description

StreamingPatternMaker()

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method	Description
`static Pattern`	`makeStreamingPattern(Expression expression, Configuration config, java.util.List<java.lang.String> reasonForFailure)`	Convert an expression that is capable of being evaluated as a filter on an XML event stream into a Pattern object which is able to act as the filter

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

- Constructor Detail
  - StreamingPatternMaker
```
public StreamingPatternMaker()
```
- Method Detail
  - makeStreamingPattern
```
public static Pattern makeStreamingPattern(Expression expression,
                                           Configuration config,
                                           java.util.List<java.lang.String> reasonForFailure)
```
    Convert an expression that is capable of being evaluated as a filter on an XML event stream into a Pattern object which is able to act as the filter
    
    Parameters:
    
    expression - the expression to be converted, which must already have been simplified and type-checked
    
    config - the Saxon configurtaion
    
    reasonForFailure - a list which will be populated with messages giving reasons why the expression cannot be converted
    
    Returns:
    
    the Pattern object if conversion succeeds; otherwise null