Top Description Fields Constructors Methods
com.sun.javafx.application.preferences

public final Record ChangedValue

extends Record
Class Inheritance
Record Components
oldValue:Object
the old mappings
newValue:Object
the new mappings
Imports
java.util.Arrays, .HashMap, .Map, .Objects

Contains information about a changed value.

Field Summary

Modifier and TypeField and Description
private final Object
newValue

Record Component accessed by newValue().

the new mappings
private final Object
oldValue

Record Component accessed by oldValue().

the old mappings

Constructor Summary

AccessConstructor and Description
public
ChangedValue(Object oldValue, Object newValue)

Method Summary

Modifier and TypeMethod and Description
public final boolean
equals(Object
the reference object with which to compare.
o
)

Implements abstract java.lang.Record.equals.

Indicates whether some other object is "equal to" this one.

public static Map<String, ChangedValue>

Returns:

a mapping of keys to changed values
getEffectiveChanges
(Map<String, Object>
the old mappings
old
,
Map<String, Object>
the current mappings
current
)

Returns a map that contains the new or changed mappings of current compared to old.

public final int
hashCode()

Implements abstract java.lang.Record.hashCode.

Returns a hash code value for the record.

public Object
newValue()

Record Component getter of newValue.

Record Component the new mappings

public Object
oldValue()

Record Component getter of oldValue.

Record Component the old mappings

public final String
toString()

Implements abstract java.lang.Record.toString.

Returns a string representation of the record.

Field Detail

newValueback to summary
private final Object newValue

Record Component accessed by newValue().

the new mappings

oldValueback to summary
private final Object oldValue

Record Component accessed by oldValue().

the old mappings

Constructor Detail

ChangedValueback to summary
public ChangedValue(Object oldValue, Object newValue)

Method Detail

equalsback to summary
public final boolean equals(Object o)

Implements abstract java.lang.Record.equals.

Doc from java.lang.Record.equals.

Indicates whether some other object is "equal to" this one. In addition to the general contract of Object.equals, record classes must further obey the invariant that when a record instance is "copied" by passing the result of the record component accessor methods to the canonical constructor, as follows:

    R copy = new R(r.c1(), r.c2(), ..., r.cn());
then it must be the case that r.equals(copy).
Parameters
o:Object

the reference object with which to compare.

Returns:boolean

true if this record is equal to the argument; false otherwise.

getEffectiveChangesback to summary
public static Map<String, ChangedValue> getEffectiveChanges(Map<String, Object> old, Map<String, Object> current)

Returns a map that contains the new or changed mappings of current compared to old. A value has changed if Objects#equals(Object, Object) or Arrays#equals(Object[], Object[]) returns false when invoked with the old and new value.

Parameters
old:Map<String, Object>

the old mappings

current:Map<String, Object>

the current mappings

Returns:Map<String, ChangedValue>

a mapping of keys to changed values

hashCodeback to summary
public final int hashCode()

Implements abstract java.lang.Record.hashCode.

Doc from java.lang.Record.hashCode.

Returns a hash code value for the record. Obeys the general contract of Object.hashCode. For records, hashing behavior is constrained by the refined contract of Record.equals, so that any two records created from the same components must have the same hash code.

Returns:int

a hash code value for this record.

newValueback to summary
public Object newValue()

Record Component getter of newValue.

Record Component
the new mappings
oldValueback to summary
public Object oldValue()

Record Component getter of oldValue.

Record Component
the old mappings
toStringback to summary
public final String toString()

Implements abstract java.lang.Record.toString.

Doc from java.lang.Record.toString.

Returns a string representation of the record. In accordance with the general contract of Object#toString(), the toString method returns a string that "textually represents" this record. The result should be a concise but informative representation that is easy for a person to read.

In addition to this general contract, record classes must further participate in the invariant that any two records which are equal must produce equal strings. This invariant is necessarily relaxed in the rare case where corresponding equal component values might fail to produce equal strings for themselves.

Returns:String

a string representation of the object.