RawDataSource (Epimorphics lib 3.1.3 API)

All Superinterfaces:

Iterable<Map<String,Object>>, Iterator<Map<String,Object>>

All Known Implementing Classes:

CSVDataSource
```
public interface RawDataSource
extends Iterable<Map<String,Object>>, Iterator<Map<String,Object>>
```
Data stream to be converted by some DataConverter. Current abstraction is of a series of records each of which has a set of named fields. The field values are unconstrained and in particular may include structured values reported as Maps. Simple field values will be reported boxed as Value instances. Experimental - only suited to tabluar structure data.

Author:

Dave Reynolds

Field Summary

Fields
Modifier and Type	Field	Description
`static String`	`INDEX`	variable name under which the index of the row will be bound in the environment
`static String`	`ROW`	variable name under which the row of data will be bound in the environment

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`List<String>`	`getFieldNames()`	Return the set of top level field names in each record
`boolean`	`hasNext()`	Return true if more record values are available.
`Iterator<Map<String,Object>>`	`iterator()`	Return itself as an iterator
`Map<String,Object>`	`next()`	Return the next record value.
`long`	`size()`	Return the total number of rows in the source or -1 if this information is not available

Methods inherited from interface java.lang.Iterable
forEach, spliterator

Methods inherited from interface java.util.Iterator
forEachRemaining, remove

- Field Detail
  - ROW
```
static final String ROW
```
    variable name under which the row of data will be bound in the environment
    
    See Also:
    
    Constant Field Values
  - INDEX
```
static final String INDEX
```
    variable name under which the index of the row will be bound in the environment
    
    See Also:
    
    Constant Field Values
- Method Detail
  - getFieldNames
```
List<String> getFieldNames()
```
    Return the set of top level field names in each record
  - hasNext
```
boolean hasNext()
```
    Return true if more record values are available.
    
    Specified by:
    
    hasNext in interface Iterator<Map<String,Object>>
  - next
```
Map<String,Object> next()
```
    Return the next record value.
    
    Specified by:
    
    next in interface Iterator<Map<String,Object>>
  - iterator
```
Iterator<Map<String,Object>> iterator()
```
    Return itself as an iterator
    
    Specified by:
    
    iterator in interface Iterable<Map<String,Object>>
  - size
```
long size()
```
    Return the total number of rows in the source or -1 if this information is not available