PageBuffer (presto-main 348 API)

java.lang.Object
- io.prestosql.operator.PageBuffer

```
public class PageBuffer
extends Object
```
Provides a bridge between classic Operator push input model and WorkProcessorOperator pull model. WorkProcessorOperatorAdapter.AdapterWorkProcessorOperator can use PageBuffer to convert from push input model to pull model.

Constructor Summary

Constructors
Constructor Description

PageBuffer()

PageBuffer(com.google.common.util.concurrent.ListenableFuture<?> initialFuture)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`add(Page page)`
`void`	`finish()`
`boolean`	`isEmpty()`
`boolean`	`isFinished()`
`WorkProcessor<Page>`	`pages()`

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

Constructor Detail

PageBuffer
```
public PageBuffer()
```

PageBuffer

public PageBuffer(com.google.common.util.concurrent.ListenableFuture<?> initialFuture)

Method Detail

pages
```
public WorkProcessor<Page> pages()
```

isEmpty
```
public boolean isEmpty()
```

isFinished
```
public boolean isFinished()
```

add
```
public void add(Page page)
```

finish
```
public void finish()
```