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

类 ConcatOperation

java.lang.Object

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

所有已实现的接口:

Serializable, StreamOperation, Expressible

public class ConcatOperation
extends Object
implements StreamOperation

Concatenates fields and adds them to the tuple. Example concat(fields="month,day,year", delim="-", as="id")

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
ConcatOperation(StreamExpression expression, StreamFactory factory)
ConcatOperation(String[] fields, String as, String delim)

方法概要

限定符和类型	方法和说明
void	operate(Tuple tuple)
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

ConcatOperation

public ConcatOperation(String[] fields,
                       String as,
                       String delim)

ConcatOperation

public ConcatOperation(StreamExpression expression,
                       StreamFactory factory)
                throws IOException

抛出:

IOException

方法详细资料

operate

public void operate(Tuple tuple)

指定者:

operate 在接口中 StreamOperation

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