Record Class HierarchicalDataPoint

java.lang.Object

java.lang.Record

com.arbergashi.charts.model.HierarchicalDataPoint

Record Components:

name - The name of the data point (e.g., "Users", "System").

value - The quantitative value of this node. For parent nodes, this is often the sum of its children.

children - A list of child nodes.

public record HierarchicalDataPoint(String name, double value, List<HierarchicalDataPoint> children)
extends Record

Represents a node in a hierarchical data structure, used for charts like Sunburst or Treemaps.

Since:

2025-06-01

Version:

1.0.0

Author:

Arber Gashi

Constructor Summary

Constructors

Constructor	Description
HierarchicalDataPoint(String name, double value)	Convenience constructor for a leaf node (a node with no children).
HierarchicalDataPoint(String name, double value, List<HierarchicalDataPoint> children)	Creates a hierarchical data point, ensuring the children list is never null.

Method Summary

Modifier and Type	Method	Description
List<HierarchicalDataPoint>	children()	Returns the value of the children 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.
boolean	isLeaf()	Checks if this node is a leaf (has no children).
String	name()	Returns the value of the name record component.
final String	toString()	Returns a string representation of this record class.
double	value()	Returns the value of the value record component.

Methods inherited from class Object

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

Constructor Details

HierarchicalDataPoint

public HierarchicalDataPoint(String name,
 double value,
 List<HierarchicalDataPoint> children)

Creates a hierarchical data point, ensuring the children list is never null.

HierarchicalDataPoint

public HierarchicalDataPoint(String name,
 double value)

Convenience constructor for a leaf node (a node with no children).

Parameters:

name - The name of the leaf node.

value - The value of the leaf node.

Method Details

isLeaf

public boolean isLeaf()

Checks if this node is a leaf (has no children).

Returns:

true if this node has no children, false otherwise.

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. Reference components are compared with Objects::equals(Object,Object); primitive components are compared with the compare method from their corresponding wrapper classes.

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.

name

public String name()

Returns the value of the name record component.

Returns:

the value of the name record component

value

public double value()

Returns the value of the value record component.

Returns:

the value of the value record component

children

public List<HierarchicalDataPoint> children()

Returns the value of the children record component.

Returns:

the value of the children record component