PatternMatchingCompositeLineMapper (Spring Batch 4.1.4.RELEASE API)

java.lang.Object
- org.springframework.batch.item.file.mapping.PatternMatchingCompositeLineMapper<T>

All Implemented Interfaces:
LineMapper<T>, org.springframework.beans.factory.InitializingBean
```
public class PatternMatchingCompositeLineMapper<T>
extends java.lang.Object
implements LineMapper<T>, org.springframework.beans.factory.InitializingBean
```
A LineMapper implementation that stores a mapping of String patterns to delegate LineTokenizers as well as a mapping of String patterns to delegate FieldSetMappers. Each line received will be tokenized and then mapped to a field set.
Both the tokenizing and the mapping work in a similar way. The line will be checked for its matching pattern. If the key matches a pattern in the map of delegates, then the corresponding delegate will be used. Patterns are sorted starting with the most specific, and the first match succeeds.
Since:
2.0
Author:
Dan Garrette, Dave Syer
See Also:
PatternMatchingCompositeLineTokenizer

Constructor Summary
Constructors
Constructor Description
PatternMatchingCompositeLineMapper()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`afterPropertiesSet()`
`T`	`mapLine(java.lang.String line, int lineNumber)`	Implementations must implement this method to map the provided line to the parameter type T.
`void`	`setFieldSetMappers(java.util.Map<java.lang.String,FieldSetMapper<T>> fieldSetMappers)`
`void`	`setTokenizers(java.util.Map<java.lang.String,LineTokenizer> tokenizers)`

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

- Constructor Detail
  - PatternMatchingCompositeLineMapper
```
public PatternMatchingCompositeLineMapper()
```
- Method Detail
  - mapLine
```
public T mapLine(java.lang.String line,
                 int lineNumber)
          throws java.lang.Exception
```
    Description copied from interface: LineMapper
    Implementations must implement this method to map the provided line to the parameter type T. The line number represents the number of lines into a file the current line resides.
    Specified by:
    mapLine in interface LineMapper<T>
    Parameters:
    line - to be mapped
    lineNumber - of the current line
    Returns:
    mapped object of type T
    Throws:
    java.lang.Exception - if error occurred while parsing.
  - afterPropertiesSet
```
public void afterPropertiesSet()
                        throws java.lang.Exception
```
    Specified by:
    afterPropertiesSet in interface org.springframework.beans.factory.InitializingBean
    Throws:
    java.lang.Exception
  - setTokenizers
```
public void setTokenizers(java.util.Map<java.lang.String,LineTokenizer> tokenizers)
```
  - setFieldSetMappers
```
public void setFieldSetMappers(java.util.Map<java.lang.String,FieldSetMapper<T>> fieldSetMappers)
```