# Class BaseEntity<K> (3.1.0)

3.1.0 (latest) 2.40.0 2.37.0 2.36.0 2.34.0 2.33.3 2.32.3 2.31.4 2.30.0 2.29.1 2.28.2 2.27.1 2.26.4 2.25.2 2.24.3 2.23.0 2.22.0 2.21.3 2.20.2 2.19.2 2.18.5 2.17.6

    public abstract class BaseEntity<K> implements Serializable

A base class for entities (key and properties). An entity is a Google Cloud Datastore persistent
data object. An entity holds one or more properties, represented by a name (as [String](https://docs.oracle.com/javase/8/docs/api/java/lang/String.html))
and a value (as [com.google.cloud.datastore.Value](https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.cloud.datastore.Value)), and may be associated with a key. For
a list of possible values see [ValueType](https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.cloud.datastore.ValueType).
See Also: [Google Cloud Datastore Entities, Properties, and Keys](https://cloud.google.com/datastore/docs/concepts/entities)

## Inheritance

[Object](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html) \> BaseEntity\<K\>

## Implements

[Serializable](https://docs.oracle.com/javase/8/docs/api/java/io/Serializable.html)

## Inherited Members

[Object.clone()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#clone--) [Object.equals(Object)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#equals-java.lang.Object-) [Object.finalize()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#finalize--) [Object.getClass()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#getClass--) [Object.hashCode()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#hashCode--) [Object.notify()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notify--) [Object.notifyAll()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#notifyAll--) [Object.toString()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#toString--) [Object.wait()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait--) [Object.wait(long)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-) [Object.wait(long,int)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#wait-long-int-)

| ## Type Parameter ||
|---|---|
| **Name** | **Description** |
| `K` |   |

## Methods

### \<K\>getEntity(String name)

    public FullEntity<K> <K>getEntity(String name)

Returns the property value as an entity.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `name` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.cloud.datastore.FullEntity<K>` |   |

### \<T\>getList(String name)

    public List<T> <T>getList(String name)

Returns the property value as a list of values.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `name` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/util/List.html<T>` |   |

### \<V\>getValue(String name)

    public V <V>getValue(String name)

Returns the [Value](https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.cloud.datastore.Value) for the given property `name`.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `name` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `V` |   |

### contains(String name)

    public boolean contains(String name)

Returns `true` if the entity contains a property with the given `name`.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `name` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

### equals(Object obj)

    public boolean equals(Object obj)

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `obj` | `https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

**Overrides** [Object.equals(Object)](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#equals-java.lang.Object-)

### getBlob(String name)

    public Blob getBlob(String name)

Returns the property value as a blob.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `name` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.cloud.datastore.Blob` |   |

### getBoolean(String name)

    public boolean getBoolean(String name)

Returns the property value as a boolean.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `name` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

### getDouble(String name)

    public double getDouble(String name)

Returns the property value as a double.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `name` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

### getKey()

    public K getKey()

Returns the associated key or null if it does not have one.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `K` |   |

### getKey(String name)

    public Key getKey(String name)

Returns the property value as a Key.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `name` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.cloud.datastore.Key` |   |

### getLatLng(String name)

    public LatLng getLatLng(String name)

Returns the property value as a LatLng.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `name` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.cloud.datastore.LatLng` |   |

### getLong(String name)

    public long getLong(String name)

Returns the property value as long.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `name` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

### getNames()

    public Set<String> getNames()

Returns the properties name.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/util/Set.html<https://docs.oracle.com/javase/8/docs/api/java/lang/String.html>` |   |

### getProperties()

    public Map<String,Value<?>> getProperties()

Returns the properties.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/util/Map.html<https://docs.oracle.com/javase/8/docs/api/java/lang/String.html,https://docs.cloud.google.com/java/docs/reference/google-cloud-datastore/latest/com.google.cloud.datastore.Value<?>>` |   |

### getString(String name)

    public String getString(String name)

Returns the property value as a string.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `name` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |   |

### getTimestamp(String name)

    public Timestamp getTimestamp(String name)

Returns the property value as a Timestamp.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `name` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `com.google.cloud.Timestamp` |   |

### hasKey()

    public boolean hasKey()

Returns true if entity has a non-null key.

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

### hashCode()

    public int hashCode()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

**Overrides** [Object.hashCode()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#hashCode--)

### isNull(String name)

    public boolean isNull(String name)

Returns true if property is an instance of NullValue.

| **Parameter** ||
|---|---|
| **Name** | **Description** |
| `name` | `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/tutorial/java/nutsandbolts/datatypes.html` |   |

### toString()

    public String toString()

| **Returns** ||
|---|---|
| **Type** | **Description** |
| `https://docs.oracle.com/javase/8/docs/api/java/lang/String.html` |   |

**Overrides** [Object.toString()](https://docs.oracle.com/javase/8/docs/api/java/lang/Object.html#toString--)