AggregateItem (Spring Batch 4.1.4.RELEASE API)

java.lang.Object
- org.springframework.batch.sample.domain.multiline.AggregateItem<T>

```
public class AggregateItem<T>
extends java.lang.Object
```
A wrapper type for an item that is used by AggregateItemReader to identify the start and end of an aggregate record.
Author:
Dave Syer
See Also:
AggregateItemReader

Constructor Summary
Constructors
Constructor Description
AggregateItem(boolean header, boolean footer)
AggregateItem(T item)

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static <T> AggregateItem<T>`	`getFooter()`
`static <T> AggregateItem<T>`	`getHeader()`
`T`	`getItem()`	Accessor for the wrapped item.
`boolean`	`isFooter()`	Responds true if this record is a footer in an aggregate.
`boolean`	`isHeader()`	Responds true if this record is a header in an aggregate.

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

- Constructor Detail
  - AggregateItem
```
public AggregateItem(T item)
```
    Parameters:
    item - the item to wrap
  - AggregateItem
```
public AggregateItem(boolean header,
                     boolean footer)
```
- Method Detail
  - getFooter
```
public static <T> AggregateItem<T> getFooter()
```
    Type Parameters:
    T - the type of item nominally wrapped
    Returns:
    a static AggregateItem that is a footer.
  - getHeader
```
public static <T> AggregateItem<T> getHeader()
```
    Type Parameters:
    T - the type of item nominally wrapped
    Returns:
    a static AggregateItem that is a header.
  - getItem
```
public T getItem()
```
    Accessor for the wrapped item.
    Returns:
    the wrapped item
    Throws:
    java.lang.IllegalStateException - if called on a record for which either isHeader() or isFooter() answers true.
  - isFooter
```
public boolean isFooter()
```
    Responds true if this record is a footer in an aggregate.
    Returns:
    true if this is the end of an aggregate record.
  - isHeader
```
public boolean isHeader()
```
    Responds true if this record is a header in an aggregate.
    Returns:
    true if this is the beginning of an aggregate record.