org.apache.solr.client.solrj.io.comp

类 FieldComparator

java.lang.Object

org.apache.solr.client.solrj.io.comp.FieldComparator

所有已实现的接口:

Serializable, Comparator<Tuple>, StreamComparator, Expressible

public class FieldComparator
extends Object
implements StreamComparator

An equality field Comparator which compares a field of two Tuples and determines sort order.

另请参阅:

序列化表格

构造器概要

构造器

构造器和说明
FieldComparator(String fieldName, ComparatorOrder order)
FieldComparator(String leftFieldName, String rightFieldName, ComparatorOrder order)

方法概要

限定符和类型	方法和说明
StreamComparator	append(StreamComparator other)
int	compare(Tuple leftTuple, Tuple rightTuple)
FieldComparator	copyAliased(Map<String,String> aliases)
boolean	equals(Object o)
String	getLeftFieldName()
ComparatorOrder	getOrder()
String	getRightFieldName()
boolean	hasDifferentFieldNames()
int	hashCode()
boolean	isDerivedFrom(StreamComparator base)
void	setLeftFieldName(String leftFieldName)
void	setRightFieldName(String rightFieldName)
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, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

从接口继承的方法 java.util.Comparator

comparing, comparing, comparingDouble, comparingInt, comparingLong, naturalOrder, nullsFirst, nullsLast, reversed, reverseOrder, thenComparing, thenComparing, thenComparing, thenComparingDouble, thenComparingInt, thenComparingLong

构造器详细资料

FieldComparator

public FieldComparator(String fieldName,
                       ComparatorOrder order)

FieldComparator

public FieldComparator(String leftFieldName,
                       String rightFieldName,
                       ComparatorOrder order)

方法详细资料

setLeftFieldName

public void setLeftFieldName(String leftFieldName)

getLeftFieldName

public String getLeftFieldName()

setRightFieldName

public void setRightFieldName(String rightFieldName)

getRightFieldName

public String getRightFieldName()

getOrder

public ComparatorOrder getOrder()

hasDifferentFieldNames

public boolean hasDifferentFieldNames()

toExpression

public StreamExpressionParameter toExpression(StreamFactory factory)

指定者:

toExpression 在接口中 Expressible

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

compare

public int compare(Tuple leftTuple,
                   Tuple rightTuple)

指定者:

compare 在接口中 Comparator<Tuple>

isDerivedFrom

public boolean isDerivedFrom(StreamComparator base)

指定者:

isDerivedFrom 在接口中 StreamComparator

copyAliased

public FieldComparator copyAliased(Map<String,String> aliases)

指定者:

copyAliased 在接口中 StreamComparator

append

public StreamComparator append(StreamComparator other)

指定者:

append 在接口中 StreamComparator

equals

public boolean equals(Object o)

指定者:

equals 在接口中 Comparator<Tuple>

覆盖:

equals 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object