AppSearchSchema.PropertyConfig


public static abstract class AppSearchSchema.PropertyConfig
extends Object

java.lang.Object
   ↳ android.app.appsearch.AppSearchSchema.PropertyConfig


Common configuration for a single property (field) in a Document.

For example, an EmailMessage would be a type and the subject would be a property.

Summary

Constants

int CARDINALITY_OPTIONAL

Zero or one value [0,1].

int CARDINALITY_REPEATED

Any number of items (including zero) [0...*].

int CARDINALITY_REQUIRED

Exactly one value [1].

Public methods

boolean equals(Object other)

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

int getCardinality()

Returns the cardinality of the property (whether it is optional, required or repeated).

String getName()

Returns the name of this property.

int hashCode()

Returns a hash code value for the object.

String toString()

Returns a string representation of the object.

Inherited methods

Constants

CARDINALITY_OPTIONAL

Added in API level 31
public static final int CARDINALITY_OPTIONAL

Zero or one value [0,1].

Constant Value: 2 (0x00000002)

CARDINALITY_REPEATED

Added in API level 31
public static final int CARDINALITY_REPEATED

Any number of items (including zero) [0...*].

Constant Value: 1 (0x00000001)

CARDINALITY_REQUIRED

Added in API level 31
public static final int CARDINALITY_REQUIRED

Exactly one value [1].

Constant Value: 3 (0x00000003)

Public methods

equals

Added in API level 31
public boolean equals (Object other)

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

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
other Object: This value may be null.

Returns
boolean true if this object is the same as the obj argument; false otherwise.

getCardinality

Added in API level 31
public int getCardinality ()

Returns the cardinality of the property (whether it is optional, required or repeated).

Returns
int Value is CARDINALITY_REPEATED, CARDINALITY_OPTIONAL, or CARDINALITY_REQUIRED

getName

Added in API level 31
public String getName ()

Returns the name of this property.

Returns
String This value cannot be null.

hashCode

Added in API level 31
public int hashCode ()

Returns a hash code value for the object. This method is supported for the benefit of hash tables such as those provided by HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.

Returns
int a hash code value for this object.

toString

Added in API level 31
public String toString ()

Returns a string representation of the object.

Returns
String This value cannot be null.