DataSource (The Adobe AEM Quickstart and Web Application. 6.6.0)

All Known Implementing Classes:

AbstractDataSource, EmptyDataSource, ResourceDataSource, SimpleDataSource
```
@ConsumerType
public interface DataSource
```
DataSource is an abstract collection of Resource.

Method Summary

All Methods Instance Methods Abstract Methods Default Methods
Modifier and Type	Method	Description
`default java.lang.Long`	`getGuessTotal()`	Returns the total count or the total as far as it is known.
`default java.lang.Long`	`getLimit()`	Returns the limit of this datasource.
`default java.lang.Long`	`getOffset()`	Returns the offset of this datasource.
`java.util.Iterator<Resource>`	`iterator()`	Returns the data.

- Method Detail
  - iterator
```
@Nonnull
java.util.Iterator<Resource> iterator()
```
    Returns the data.
    
    Returns:
    
    The iterator of the data.
  - getOffset
```
@CheckForNull
default java.lang.Long getOffset()
```
    Returns the offset of this datasource. It returns null by default.
    
    Returns:
    
    The offset of the datasource, or null when the offset is unknown or not set.
  - getLimit
```
@CheckForNull
default java.lang.Long getLimit()
```
    Returns the limit of this datasource. It returns null by default.
    
    Returns:
    
    The limit of the datasource, or null when the offset is unknown or not set.
  - getGuessTotal
```
@CheckForNull
default java.lang.Long getGuessTotal()
```
    Returns the total count or the total as far as it is known. It returns null by default.
    
    Returns:
    
    The total count, or null if it is not known.