DataCursor (d4core 5.0.0-alpha2 API)

```
public interface DataCursor
```
For data access, we adopt a cursor model. This comes from database technology where a cursor object is used to walk over the results of a database query. Here the cursor walks the underlying data and stores enough state to extract data depending on its sort. The cursor may (or may not) contain internal subclasses to track various kinds of state.

Nested Classes
Modifier and Type	Interface and Description
`static class`	`DataCursor.Scheme`

All Methods Instance Methods Abstract Methods
Modifier and Type	Method and Description
`int`	`fieldIndex(java.lang.String name)`
`DataCursor`	`getContainer()`
`DSP`	`getDSP()`
`Index`	`getIndex()`
`long`	`getRecordCount()`
`long`	`getRecordIndex()`
`DataCursor.Scheme`	`getScheme()`
`DapNode`	`getTemplate()`
`boolean`	`isField()`
`boolean`	`isScalar()`
`java.lang.Object`	`read(Index index)`
`java.lang.Object`	`read(java.util.List<Slice> slices)`
`DataCursor`	`readField(int fieldindex)`
`DataCursor`	`readRecord(long i)`

Index getIndex()
        throws DapException

java.lang.Object read(java.util.List<Slice> slices)
               throws DapException

java.lang.Object read(Index index)
               throws DapException

long getRecordCount()
             throws DapException

DataCursor readRecord(long i)
               throws DapException

long getRecordIndex()
             throws DapException

int fieldIndex(java.lang.String name)
        throws DapException

DataCursor readField(int fieldindex)
              throws DapException

Interface DataCursor