RowReferencePageManager.LoadCursor (trino-main 366 API)

java.lang.Object
- io.trino.operator.RowReferencePageManager.LoadCursor

All Implemented Interfaces:

RowReference, AutoCloseable

Enclosing class:

RowReferencePageManager
```
public static class RowReferencePageManager.LoadCursor
extends Object
implements RowReference, AutoCloseable
```
Cursor that allows callers to advance through the registered page and dictate whether a specific position should be preserved with a stable row ID. Row ID generation can be expensive in tight loops, so this allows callers to quickly skip positions that won't be needed.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`advance()`
`long`	`allocateRowId()`	Allocate a stable row ID that can be used to reference this row at a future point.
`void`	`close()`
`int`	`compareTo(RowIdComparisonStrategy strategy, long rowId)`	Compares the referenced row to the specified row ID using the provided RowIdComparisonStrategy.
`boolean`	`equals(RowIdHashStrategy strategy, long rowId)`	Checks equality of the referenced row with the specified row ID using the provided RowIdHashStrategy.
`long`	`hash(RowIdHashStrategy strategy)`	Calculates the hash of the referenced row using the provided RowIdHashStrategy.

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

- Method Detail
  - advance
```
public boolean advance()
```
  - compareTo
```
public int compareTo(RowIdComparisonStrategy strategy,
                     long rowId)
```
    Description copied from interface: RowReference
    
    Compares the referenced row to the specified row ID using the provided RowIdComparisonStrategy.
    
    Specified by:
    
    compareTo in interface RowReference
  - equals
```
public boolean equals(RowIdHashStrategy strategy,
                      long rowId)
```
    Description copied from interface: RowReference
    
    Checks equality of the referenced row with the specified row ID using the provided RowIdHashStrategy.
    
    Specified by:
    
    equals in interface RowReference
  - hash
```
public long hash(RowIdHashStrategy strategy)
```
    Description copied from interface: RowReference
    
    Calculates the hash of the referenced row using the provided RowIdHashStrategy.
    
    Specified by:
    
    hash in interface RowReference
  - allocateRowId
```
public long allocateRowId()
```
    Description copied from interface: RowReference
    
    Allocate a stable row ID that can be used to reference this row at a future point.
    
    Specified by:
    
    allocateRowId in interface RowReference
  - close
```
public void close()
```
    Specified by:
    
    close in interface AutoCloseable