org.springframework.data.relational.core.sql

Class AnalyticFunction

java.lang.Object

org.springframework.data.relational.core.sql.AnalyticFunction

All Implemented Interfaces:

Expression, Segment, Visitable

public class AnalyticFunction
extends Object
implements Expression

Represents an analytic function, also known as windowing function

Since:

2.7

Author:

Jens Schauder

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	AnalyticFunction.Partition

Method Summary

Modifier and Type	Method and Description
org.springframework.data.relational.core.sql.AnalyticFunction.AliasedAnalyticFunction	as(SqlIdentifier alias)
org.springframework.data.relational.core.sql.AnalyticFunction.AliasedAnalyticFunction	as(String alias)
static AnalyticFunction	create(String function, Expression... arguments)
boolean	equals(Object obj) Check whether this Segment is equal to another Segment.
int	hashCode() Generate a hash code from thisSegment.
AnalyticFunction	orderBy(Expression... orderByExpression)
AnalyticFunction	orderBy(OrderByField... orderBy)
AnalyticFunction	partitionBy(Expression... partitionBy)
String	toString() Return a SQL string representation of this Segment.
void	visit(Visitor visitor) Accept a Visitor visiting this Visitable and its nested Visitables if applicable.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.springframework.data.relational.core.sql.Segment

equals, hashCode, toString

Methods inherited from interface org.springframework.data.relational.core.sql.Visitable

visit

Method Detail

create

public static AnalyticFunction create(String function,
                                      Expression... arguments)

partitionBy

public AnalyticFunction partitionBy(Expression... partitionBy)

orderBy

public AnalyticFunction orderBy(OrderByField... orderBy)

orderBy

public AnalyticFunction orderBy(Expression... orderByExpression)

as

public org.springframework.data.relational.core.sql.AnalyticFunction.AliasedAnalyticFunction as(String alias)

as

public org.springframework.data.relational.core.sql.AnalyticFunction.AliasedAnalyticFunction as(SqlIdentifier alias)

visit

public void visit(Visitor visitor)

Description copied from interface: Visitable

Accept a Visitor visiting this Visitable and its nested Visitables if applicable.

Specified by:

visit in interface Visitable

Parameters:

visitor - the visitor to notify, must not be null.

hashCode

public int hashCode()

Description copied from interface: Segment

Generate a hash code from thisSegment.

Hashcode typically derives from the Segment.toString() representation so two Segments yield the same Segment.hashCode() if their Segment.toString() representation matches.

Specified by:

hashCode in interface Segment

Overrides:

hashCode in class Object

Returns:

a hash code value for this object.

equals

public boolean equals(Object obj)

Description copied from interface: Segment

Check whether this Segment is equal to another Segment.

Equality is typically given if the Segment.toString() representation matches.

Specified by:

equals in interface Segment

Overrides:

equals in class Object

Parameters:

obj - the reference object with which to compare.

Returns:

true if this object is the same as the other argument; false otherwise.

toString

public String toString()

Description copied from interface: Segment

Return a SQL string representation of this Segment.

The representation is intended for debugging purposes and an approximation to the generated SQL. While it might work in the context of a specific dialect, you should not assume that the Segment.toString() representation works across multiple databases.

Specified by:

toString in interface Segment

Overrides:

toString in class Object

Returns:

a SQL string representation of this Segment.