org.apache.flink.table.runtime.util

类 ResettableExternalBuffer.BufferIterator

java.lang.Object

org.apache.flink.table.runtime.util.ResettableExternalBuffer.BufferIterator

所有已实现的接口:

Closeable, AutoCloseable, ResettableRowBuffer.ResettableIterator, RowIterator<org.apache.flink.table.data.binary.BinaryRowData>

封闭类:

ResettableExternalBuffer

public class ResettableExternalBuffer.BufferIterator
extends Object
implements ResettableRowBuffer.ResettableIterator

Iterator of external buffer.

方法概要

限定符和类型	方法和说明
boolean	advanceNext() Advance this iterator by a single row.
void	close()
org.apache.flink.table.data.binary.BinaryRowData	getRow() Retrieve the row from this iterator.
void	reset() Re-initialize the iterator, start from begin row.

从类继承的方法 java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

方法详细资料

reset

public void reset()
           throws IOException

从接口复制的说明: ResettableRowBuffer.ResettableIterator

Re-initialize the iterator, start from begin row.

指定者:

reset 在接口中 ResettableRowBuffer.ResettableIterator

抛出:

IOException

close

public void close()

指定者:

close 在接口中 Closeable

指定者:

close 在接口中 AutoCloseable

advanceNext

public boolean advanceNext()

从接口复制的说明: RowIterator

Advance this iterator by a single row. Returns `false` if this iterator has no more rows and `true` otherwise. If this returns `true`, then the new row can be retrieved by calling RowIterator.getRow().

指定者:

advanceNext 在接口中 RowIterator<org.apache.flink.table.data.binary.BinaryRowData>

getRow

public org.apache.flink.table.data.binary.BinaryRowData getRow()

从接口复制的说明: RowIterator

Retrieve the row from this iterator. This method is idempotent. It is illegal to call this method after [[advanceNext()]] has returned `false`.

指定者:

getRow 在接口中 RowIterator<org.apache.flink.table.data.binary.BinaryRowData>