**Inheritance:**
java.lang.Object
```
public abstract class BaseDataObject
```

Base class for google data objects.
## Constructors

| Constructor | Description |
| --- | --- |
| [BaseDataObject(String kind)](#BaseDataObject-java.lang.String-) | Initializes a new instance of the class. |
| [BaseDataObject(String kind, String id)](#BaseDataObject-java.lang.String-java.lang.String-) | Initializes a new instance of the class. |
| [BaseDataObject(String kind, String id, String eTag)](#BaseDataObject-java.lang.String-java.lang.String-java.lang.String-) | Initializes a new instance of the class. |
## Methods

| Method | Description |
| --- | --- |
| [equals(Object arg0)](#equals-java.lang.Object-) |  |
| [getClass()](#getClass--) |  |
| [getETag()](#getETag--) | An ETag or entity tag is one of several mechanisms that HTTP provides for web cache validation, and which allows a client to make conditional requests. |
| [getId()](#getId--) | Identifier of the resource. |
| [getKind()](#getKind--) | Type of the resource |
| [hashCode()](#hashCode--) |  |
| [notify()](#notify--) |  |
| [notifyAll()](#notifyAll--) |  |
| [setETag(String value)](#setETag-java.lang.String-) | An ETag or entity tag is one of several mechanisms that HTTP provides for web cache validation, and which allows a client to make conditional requests. |
| [setId(String value)](#setId-java.lang.String-) | Identifier of the resource. |
| [toString()](#toString--) |  |
| [wait()](#wait--) |  |
| [wait(long arg0)](#wait-long-) |  |
| [wait(long arg0, int arg1)](#wait-long-int-) |  |
### BaseDataObject(String kind) {#BaseDataObject-java.lang.String-}
```
public BaseDataObject(String kind)
```


Initializes a new instance of the class.

**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| kind | java.lang.String | Type of the resource |

### BaseDataObject(String kind, String id) {#BaseDataObject-java.lang.String-java.lang.String-}
```
public BaseDataObject(String kind, String id)
```


Initializes a new instance of the class.

**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| kind | java.lang.String | Type of the resource |
| id | java.lang.String | Identifier of the resource. |

### BaseDataObject(String kind, String id, String eTag) {#BaseDataObject-java.lang.String-java.lang.String-java.lang.String-}
```
public BaseDataObject(String kind, String id, String eTag)
```


Initializes a new instance of the class.

**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| kind | java.lang.String | Type of the resource |
| id | java.lang.String | Identifier of the resource. |
| eTag | java.lang.String | An entity tag |

### equals(Object arg0) {#equals-java.lang.Object-}
```
public boolean equals(Object arg0)
```




**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| arg0 | java.lang.Object |  |

**Returns:**
boolean
### getClass() {#getClass--}
```
public final native Class<?> getClass()
```




**Returns:**
java.lang.Class<?>
### getETag() {#getETag--}
```
public String getETag()
```


An ETag or entity tag is one of several mechanisms that HTTP provides for web cache validation, and which allows a client to make conditional requests. This allows caches to be more efficient, and saves bandwidth, as a web server does not need to send a full response if the content has not changed. ETags can also be used for optimistic concurrency control, as a way to help prevent simultaneous updates of a resource from overwriting each other.

**Returns:**
java.lang.String
### getId() {#getId--}
```
public String getId()
```


Identifier of the resource.

**Returns:**
java.lang.String
### getKind() {#getKind--}
```
public String getKind()
```


Type of the resource

**Returns:**
java.lang.String
### hashCode() {#hashCode--}
```
public native int hashCode()
```




**Returns:**
int
### notify() {#notify--}
```
public final native void notify()
```




### notifyAll() {#notifyAll--}
```
public final native void notifyAll()
```




### setETag(String value) {#setETag-java.lang.String-}
```
public void setETag(String value)
```


An ETag or entity tag is one of several mechanisms that HTTP provides for web cache validation, and which allows a client to make conditional requests. This allows caches to be more efficient, and saves bandwidth, as a web server does not need to send a full response if the content has not changed. ETags can also be used for optimistic concurrency control, as a way to help prevent simultaneous updates of a resource from overwriting each other.

**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| value | java.lang.String |  |

### setId(String value) {#setId-java.lang.String-}
```
public void setId(String value)
```


Identifier of the resource.

**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| value | java.lang.String |  |

### toString() {#toString--}
```
public String toString()
```




**Returns:**
java.lang.String
### wait() {#wait--}
```
public final void wait()
```




### wait(long arg0) {#wait-long-}
```
public final native void wait(long arg0)
```




**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| arg0 | long |  |

### wait(long arg0, int arg1) {#wait-long-int-}
```
public final void wait(long arg0, int arg1)
```




**Parameters:**
| Parameter | Type | Description |
| --- | --- | --- |
| arg0 | long |  |
| arg1 | int |  |