Module litebridge.db.spi

Package org.litebridgedb.db.spi.expression

Record Class SqlFunctionRegistry.Scalar

java.lang.Object

java.lang.Record

org.litebridgedb.db.spi.expression.SqlFunctionRegistry.Scalar

Record Components:

upper - UPPER(): Convert a string to uppercase.

lower - LOWER(): Convert a string to lowercase.

substring - SUBSTRING(): Extract a substring from a string.

abs - ABS(): Absolute value of a number.

Enclosing class:

SqlFunctionRegistry

public static record SqlFunctionRegistry.Scalar(DelegateExpressionFactory upper, DelegateExpressionFactory lower, DelegateExpressionFactory substring, DelegateExpressionFactory abs)
extends Record

Scalar functions perform calculations on one or more input values and return a single value.

Constructor Summary

Constructors

Constructor	Description
Scalar(DelegateExpressionFactory upper, DelegateExpressionFactory lower, DelegateExpressionFactory substring, DelegateExpressionFactory abs)	Creates an instance of a Scalar record class.

Method Summary

Modifier and Type	Method	Description
DelegateExpressionFactory	abs()	Returns the value of the abs 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	lower()	Returns the value of the lower record component.
DelegateExpressionFactory	substring()	Returns the value of the substring record component.
final String	toString()	Returns a string representation of this record class.
DelegateExpressionFactory	upper()	Returns the value of the upper record component.

Methods inherited from class java.lang.Object

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

Constructor Details

Scalar

public Scalar(DelegateExpressionFactory upper,
 DelegateExpressionFactory lower,
 DelegateExpressionFactory substring,
 DelegateExpressionFactory abs)

Creates an instance of a Scalar record class.

Parameters:

upper - the value for the upper record component

lower - the value for the lower record component

substring - the value for the substring record component

abs - the value for the abs 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.

upper

public DelegateExpressionFactory upper()

Returns the value of the upper record component.

Returns:

the value of the upper record component

lower

public DelegateExpressionFactory lower()

Returns the value of the lower record component.

Returns:

the value of the lower record component

substring

public DelegateExpressionFactory substring()

Returns the value of the substring record component.

Returns:

the value of the substring record component

abs

public DelegateExpressionFactory abs()

Returns the value of the abs record component.

Returns:

the value of the abs record component