org.apache.solr.client.solrj.io.ops

类 GroupOperation

java.lang.Object

org.apache.solr.client.solrj.io.ops.GroupOperation

所有已实现的接口:

Serializable, ReduceOperation, StreamOperation, Expressible

public class GroupOperation
extends Object
implements ReduceOperation

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
GroupOperation(StreamComparator streamComparator, int size)
GroupOperation(StreamExpression expression, StreamFactory factory)

方法概要

限定符和类型	方法和说明
void	operate(Tuple tuple)
Tuple	reduce()
Explanation	toExplanation(StreamFactory factory) Returns an explanation about the stream object
StreamExpressionParameter	toExpression(StreamFactory factory)

从类继承的方法 java.lang.Object

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

构造器详细资料

GroupOperation

public GroupOperation(StreamExpression expression,
                      StreamFactory factory)
               throws IOException

抛出:

IOException

GroupOperation

public GroupOperation(StreamComparator streamComparator,
                      int size)

方法详细资料

toExpression

public StreamExpressionParameter toExpression(StreamFactory factory)
                                       throws IOException

指定者:

toExpression 在接口中 Expressible

抛出:

IOException

toExplanation

public Explanation toExplanation(StreamFactory factory)
                          throws IOException

从接口复制的说明: Expressible

Returns an explanation about the stream object

指定者:

toExplanation 在接口中 Expressible

参数:

factory - Stream factory for this, contains information about the function name

返回:

Explanation about this stream object containing explanations of any child stream objects

抛出:

IOException - throw on any error

reduce

public Tuple reduce()

指定者:

reduce 在接口中 ReduceOperation

operate

public void operate(Tuple tuple)

指定者:

operate 在接口中 StreamOperation