feat(vector): add Value#asVector() (#1701)

Author: injectives

driver/clirr-ignored-differences.xml

@@ -947,4 +947,10 @@
         <method>org.neo4j.driver.types.UnsupportedType asUnsupportedType()</method>
     </difference>
 
+    <difference>
+        <className>org/neo4j/driver/Value</className>
+        <differenceType>7012</differenceType>
+        <method>org.neo4j.driver.types.Vector asVector()</method>
+    </difference>
+
 </differences>

driver/src/main/java/org/neo4j/driver/Value.java

@@ -496,6 +496,16 @@ public interface Value extends MapAccessor, MapAccessorWithDefaultValue {
      */
     Point asPoint();
 
+    /**
+     * Returns the value as an {@link Vector}, if possible.
+     *
+     * @return the value as a {@link Vector}, if possible
+     * @throws Uncoercible if value types are incompatible
+     * @since 6.0.0
+     */
+    @Preview(name = "Neo4j Vector")
+    Vector asVector();
+
     /**
      * Returns the value as an {@link UnsupportedType}, if possible.
      *

driver/src/main/java/org/neo4j/driver/internal/value/ValueAdapter.java

@@ -306,6 +306,11 @@ public Point asPoint() {
         throw new Uncoercible(type().name(), "Point");
     }
 
+    @Override
+    public org.neo4j.driver.types.Vector asVector() {
+        throw new Uncoercible(type().name(), "Vector");
+    }
+
     @Override
     public UnsupportedType asUnsupportedType() {
         throw new Uncoercible(type().name(), "UnsupportedType");

driver/src/main/java/org/neo4j/driver/internal/value/VectorValue.java

@@ -42,6 +42,11 @@ public org.neo4j.bolt.connection.values.Type boltValueType() {
         return org.neo4j.bolt.connection.values.Type.VECTOR;
     }
 
+    @Override
+    public Vector asVector() {
+        return asObject();
+    }
+
     @Override
     public <T> T as(Class<T> targetClass) {
         if (targetClass.isAssignableFrom(Int8Vector.class)