Class SimpleFunction
java.lang.Object
org.springframework.data.relational.core.sql.SimpleFunction
- All Implemented Interfaces:
Expression
,Segment
,Visitable
Simple function accepting one or more
Expression
s.- Since:
- 1.1
- Author:
- Mark Paluch
-
Method Summary
Modifier and TypeMethodDescriptionExpose this function result under a columnalias
.as
(SqlIdentifier alias) Expose this function result under a columnalias
.static SimpleFunction
create
(String functionName, List<Expression> expressions) boolean
int
hashCode()
Generate a hash code from thisSegment
.toString()
Return a SQL string representation of thisSegment
.void
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait
-
Method Details
-
create
- Parameters:
functionName
- must not be null.expressions
- zero or manyExpression
s, must not be null.- Returns:
-
as
Expose this function result under a columnalias
.- Parameters:
alias
- column alias name, must not null or empty.- Returns:
- the aliased
SimpleFunction
.
-
as
Expose this function result under a columnalias
.- Parameters:
alias
- column alias name, must not null.- Returns:
- the aliased
SimpleFunction
. - Since:
- 2.0
-
getFunctionName
- Returns:
- the function name.
-
getExpressions
- Returns:
- the function arguments.
- Since:
- 2.0
-
toString
Description copied from interface:Segment
Return a SQL string representation of thisSegment
.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. -
visit
Description copied from interface:Visitable
-
hashCode
public int hashCode()Description copied from interface:Segment
Generate a hash code from thisSegment
.Hashcode typically derives from the
Segment.toString()
representation so twoSegment
s yield the sameSegment.hashCode()
if theirSegment.toString()
representation matches. -
equals
Description copied from interface:Segment
Check whether thisSegment
is equal to anotherSegment
.Equality is typically given if the
Segment.toString()
representation matches.
-