Record Class Selector.Slice

java.lang.Object

java.lang.Record

ca.marcusdunn.jsonlens.path.core.query.Selector.Slice

Record Components:

start - the start, if the query gives it

end - the end, if the query gives it

step - the step, if the query gives it

All Implemented Interfaces:

Selector

Enclosing interface:

Selector

public static record Selector.Slice(Maybe<Long> start, Maybe<Long> end, Maybe<Long> step)
extends Record
implements Selector

An array slice selector: start:end:step (Section 2.3.4). It selects the elements from start up to, but not including, end, in increments of step.

Slice	Elements of ["a", "b", "c", "d", "e"]
1:3	"b", "c"
:2	"a", "b"
-2:	"d", "e"
::2	"a", "c", "e"
::-1	"e", "d", "c", "b", "a"
::0	nothing

The default step is 1. The default start and end depend on the sign of the step.

Nested Class Summary

Nested classes/interfaces inherited from interface Selector

Selector.Filter, Selector.Index, Selector.Name, Selector.Slice, Selector.Wildcard

Constructor Summary

Constructors

Constructor	Description
Slice(Maybe<Long> start, Maybe<Long> end, Maybe<Long> step)	Creates an instance of a Slice record class.

Method Summary

Modifier and Type	Method	Description
Maybe<Long>	end()	Returns the value of the end 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.
Maybe<Long>	start()	Returns the value of the start record component.
Maybe<Long>	step()	Returns the value of the step record component.
final String	toString()	Returns a string representation of this record class.

Methods inherited from class Object

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

Constructor Details

Slice

public Slice(Maybe<Long> start,
 Maybe<Long> end,
 Maybe<Long> step)

Creates an instance of a Slice record class.

Parameters:

start - the value for the start record component

end - the value for the end record component

step - the value for the step 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.

start

public Maybe<Long> start()

Returns the value of the start record component.

Returns:

the value of the start record component

end

public Maybe<Long> end()

Returns the value of the end record component.

Returns:

the value of the end record component

step

public Maybe<Long> step()

Returns the value of the step record component.

Returns:

the value of the step record component