feat: Add support for the VectorValue type (#6154)

Author: MarkDuckworth

firebase-firestore/CHANGELOG.md

@@ -1,5 +1,5 @@
 # Unreleased
-
+* [feature] Add support for the VectorValue type. [#6154](//github.com/firebase/firebase-android-sdk/pull/6154)
 
 # 25.0.0
 * [feature] Enable queries with range & inequality filters on multiple fields. [#5729](//github.com/firebase/firebase-android-sdk/pull/5729)

firebase-firestore/README.md

@@ -113,7 +113,7 @@ it on behalf.
 
 Run below to format Java code:
 ```bash
-./gradlew :firebase-firestore:googleJavaFormat
+./gradlew :firebase-firestore:spotlessApply
 ```
 
 See [here](../README.md#code-formatting) if you want to be able to format code

firebase-firestore/api.txt

@@ -123,6 +123,7 @@ package com.google.firebase.firestore {
     method @Nullable public String getString(@NonNull String);
     method @Nullable public com.google.firebase.Timestamp getTimestamp(@NonNull String);
     method @Nullable public com.google.firebase.Timestamp getTimestamp(@NonNull String, @NonNull com.google.firebase.firestore.DocumentSnapshot.ServerTimestampBehavior);
+    method @Nullable public com.google.firebase.firestore.VectorValue getVectorValue(@NonNull String);
     method @Nullable public <T> T toObject(@NonNull Class<T>);
     method @Nullable public <T> T toObject(@NonNull Class<T>, @NonNull com.google.firebase.firestore.DocumentSnapshot.ServerTimestampBehavior);
   }
@@ -152,6 +153,7 @@ package com.google.firebase.firestore {
     method @NonNull public static com.google.firebase.firestore.FieldValue increment(long);
     method @NonNull public static com.google.firebase.firestore.FieldValue increment(double);
     method @NonNull public static com.google.firebase.firestore.FieldValue serverTimestamp();
+    method @NonNull public static com.google.firebase.firestore.VectorValue vector(@NonNull double[]);
   }
 
   public class Filter {
@@ -554,6 +556,10 @@ package com.google.firebase.firestore {
     method @NonNull public com.google.firebase.firestore.TransactionOptions.Builder setMaxAttempts(int);
   }
 
+  public class VectorValue {
+    method @NonNull public double[] toArray();
+  }
+
   public class WriteBatch {
     method @NonNull public com.google.android.gms.tasks.Task<java.lang.Void> commit();
     method @NonNull public com.google.firebase.firestore.WriteBatch delete(@NonNull com.google.firebase.firestore.DocumentReference);

firebase-firestore/src/androidTest/java/com/google/firebase/firestore/NumericTransformsTest.java

@@ -34,7 +34,7 @@
 
 @RunWith(AndroidJUnit4.class)
 public class NumericTransformsTest {
-  private static final double DOUBLE_EPSILON = 0.000001;
+  public static final double DOUBLE_EPSILON = 0.000001;
 
   // A document reference to read and write to.
   private DocumentReference docRef;