Module litebridge.db.spi

Package org.litebridgedb.db.spi.expression

Record Class SqlFunctionRegistry.Aggregate

java.lang.Object

java.lang.Record

org.litebridgedb.db.spi.expression.SqlFunctionRegistry.Aggregate

Record Components:

avg - AVG(): Average value of the specified column.

min - MIN(): Minimum value of the specified column.

max - MAX(): Maximum value of the specified column.

count - COUNT(): Total number of rows in the query result.

Enclosing class:

SqlFunctionRegistry

public static record SqlFunctionRegistry.Aggregate(DelegateExpressionFactory avg, DelegateExpressionFactory min, DelegateExpressionFactory max, SelectExpression count)
extends Record

Aggregate functions perform calculations on a set of values and return a single value.

Constructor Summary

Constructors

Constructor	Description
Aggregate(DelegateExpressionFactory avg, DelegateExpressionFactory min, DelegateExpressionFactory max, SelectExpression count)	Creates an instance of a Aggregate record class.

Method Summary

Modifier and Type	Method	Description
DelegateExpressionFactory	avg()	Returns the value of the avg record component.
SelectExpression	count()	Returns the value of the count record component.
final boolean	equals(Object o)	Indicates whether some other object is "equal to" this one.
final int	hashCode()	Returns a hash code value for this object.
DelegateExpressionFactory	max()	Returns the value of the max record component.
DelegateExpressionFactory	min()	Returns the value of the min record component.
final String	toString()	Returns a string representation of this record class.

Methods inherited from class java.lang.Object

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

Constructor Details

Aggregate

public Aggregate(DelegateExpressionFactory avg,
 DelegateExpressionFactory min,
 DelegateExpressionFactory max,
 SelectExpression count)

Creates an instance of a Aggregate record class.

Parameters:

avg - the value for the avg record component

min - the value for the min record component

max - the value for the max record component

count - the value for the count record component

Method Details

toString

public final String toString()

Returns a string representation of this record class. The representation contains the name of the class, followed by the name and value of each of the record components.

Specified by:

toString in class Record

Returns:

a string representation of this object

hashCode

public final int hashCode()

Returns a hash code value for this object. The value is derived from the hash code of each of the record components.

Specified by:

hashCode in class Record

Returns:

a hash code value for this object

equals

public final boolean equals(Object o)

Indicates whether some other object is "equal to" this one. The objects are equal if the other object is of the same class and if all the record components are equal. All components in this record class are compared with Objects::equals(Object,Object).

Specified by:

equals in class Record

Parameters:

o - the object with which to compare

Returns:

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

avg

public DelegateExpressionFactory avg()

Returns the value of the avg record component.

Returns:

the value of the avg record component

min

public DelegateExpressionFactory min()

Returns the value of the min record component.

Returns:

the value of the min record component

max

public DelegateExpressionFactory max()

Returns the value of the max record component.

Returns:

the value of the max record component

count

public SelectExpression count()

Returns the value of the count record component.

Returns:

the value of the count record component