UpdateModifiers (GigaSpaces 16.4.0 API)

java.lang.Object
- com.j_spaces.core.client.UpdateModifiers

```
public class UpdateModifiers
extends Object
```
The Modifier class provides static methods and constants to decode update types modifiers. The sets of modifiers are represented as integers with distinct bit positions representing different modifiers.

Version:

4.0

Author:

Yechiel Fefer, Igor Goldenberg

Field Summary

Fields
Modifier and Type	Field and Description
`static int`	`MEMORY_ONLY_SEARCH` Look only in memory for existence of entry with the same ID -do not use the underlying EDS.
`static int`	`NO_RETURN_VALUE` If set, the write or update operations will return `null` instead of the lease object (write) or previous value (update).
`static int`	`PARTIAL_UPDATE` The `int` value representing the `PARTIAL_UPDATE` modifier.
`static int`	`RETURN_PREV_ON_UPDATE` Determines if an update operation should return the previous entry in the lease.
`static int`	`UPDATE_ONLY` The `int` value representing the `UPDATE_OR_ONLY` modifier.
`static int`	`UPDATE_OR_WRITE` The `int` value representing the `UPDATE_OR_WRITE` modifier.
`static int`	`WRITE_ONLY` The `int` value representing the `WRITE_ONLY` modifier.

Constructor Summary

Constructors
Constructor and Description

UpdateModifiers()

Constructors
Constructor and Description
`UpdateModifiers()`

Method Summary

All Methods Static Methods Concrete Methods
Modifier and Type	Method and Description
`static boolean`	`isMemoryOnlySearch(int mod)` Return `true` if the integer argument includes the `MEMORY_ONLY_SEARCH` modifier, `false` otherwise.
`static boolean`	`isNoReturnValue(int mod)` Return `true` if the integer argument includes the `NO_RETURN_VALUE` modifier, `false` otherwise.
`static boolean`	`isPartialUpdate(int mod)` Return `true` if the integer argument includes the `PARTIAL_UPDATE` modifier, `false` otherwise.
`static boolean`	`isPotentialUpdate(int mod)`
`static boolean`	`isReturnPrevOnUpdate(int mod)` Return `true` if the integer argument includes the `RETURN_PREV_ON_UPDATE` modifier, `false` otherwise.
`static boolean`	`isUpdate(int mod)` Return `true` if the integer argument includes the `UPDATE_ONLY` modifier or `PARTIAL_UPDATE` modifier or `UPDATE_OR_WRITE` modifier, `false` otherwise.
`static boolean`	`isUpdateOnly(int mod)` Return `true` if the integer argument includes the `UPDATE_ONLY` modifier, `false` otherwise.
`static boolean`	`isUpdateOrWrite(int mod)` Return `true` if the integer argument includes the `UPDATE_OR_WRITE` modifier, `false` otherwise.
`static boolean`	`isWriteOnly(int mod)` Return `true` if the integer argument includes the `WRITE_ONLY` modifier, `false` otherwise.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - WRITE_ONLY
```
public static final int WRITE_ONLY
```
    The int value representing the WRITE_ONLY modifier. When set: the entry to be written must not reside in the space, no new entry will be written otherwise and an EntryAlreadyInSpaceException will be thrown. Notice: can't be used in together with UPDATE_OR_WRITE or UPDATE_ONLY.
    
    See Also:
    
    Constant Field Values
  - UPDATE_ONLY
```
public static final int UPDATE_ONLY
```
    The int value representing the UPDATE_OR_ONLY modifier. When set alone: the entry to be updated must be reside in the space, no new entry will be written otherwise and an EntryNotInSpaceException will be thrown.
    
    See Also:
    
    Constant Field Values
  - UPDATE_OR_WRITE
```
public static final int UPDATE_OR_WRITE
```
    The int value representing the UPDATE_OR_WRITE modifier. When set: if the entry to be updated does not reside in the space, a new entry is written
    Notice: can't be used in together with PARTIAL_UPDATE
    
    See Also:
    
    Constant Field Values
  - PARTIAL_UPDATE
```
public static final int PARTIAL_UPDATE
```
    The int value representing the PARTIAL_UPDATE modifier. If set, null values in the updated entry are treated as "leave as it is"
    Notice: can't be used in together with UPDATE_OR_WRITE or WRITE_ONLY.
    
    See Also:
    
    Constant Field Values
  - NO_RETURN_VALUE
```
public static final int NO_RETURN_VALUE
```
    If set, the write or update operations will return null instead of the lease object (write) or previous value (update). Using this option will improve application write operation performance - null return value yields less network traffic and less memory consumption. Note: This modifier does not replace ONE_WAY modifier
    
    See Also:
    
    Constant Field Values
  - RETURN_PREV_ON_UPDATE
```
public static final int RETURN_PREV_ON_UPDATE
```
    Determines if an update operation should return the previous entry in the lease.
    
    Since:
    
    9.0.1
    
    See Also:
    
    Constant Field Values
  - MEMORY_ONLY_SEARCH
```
public static final int MEMORY_ONLY_SEARCH
```
    Look only in memory for existence of entry with the same ID -do not use the underlying EDS. We assume that if an entry with the same ID does not reside in cache- it does exist in the underlying EDS either. It is the responsibility of the caller using this modifier to make sure the entry does not reside in the EDS - failing to do so may cause inconsistent behaviour of the system
    
    Since:
    
    9.1.1
    
    See Also:
    
    Constant Field Values
- Constructor Detail
  - UpdateModifiers
```
public UpdateModifiers()
```
- Method Detail
  - isUpdateOrWrite
```
public static boolean isUpdateOrWrite(int mod)
```
    Return true if the integer argument includes the UPDATE_OR_WRITE modifier, false otherwise.
    
    Parameters:
    
    mod - a set of modifiers
    
    Returns:
    
    true if mod includes the public modifier; false otherwise.
  - isPartialUpdate
```
public static boolean isPartialUpdate(int mod)
```
    Return true if the integer argument includes the PARTIAL_UPDATE modifier, false otherwise.
    
    Parameters:
    
    mod - a set of modifiers
    
    Returns:
    
    true if mod includes the PARTIAL_UPDATE modifier; false otherwise.
  - isUpdateOnly
```
public static boolean isUpdateOnly(int mod)
```
    Return true if the integer argument includes the UPDATE_ONLY modifier, false otherwise.
    
    Parameters:
    
    mod - a set of modifiers
    
    Returns:
    
    true if mod includes the UPDATE_ONLY modifier; false otherwise.
  - isUpdate
```
public static boolean isUpdate(int mod)
```
    Return true if the integer argument includes the UPDATE_ONLY modifier or PARTIAL_UPDATE modifier or UPDATE_OR_WRITE modifier, false otherwise.
    
    Parameters:
    
    mod - a set of modifiers
    
    Returns:
    
    true if mod includes the UPDATE_ONLY modifier or PARTIAL_UPDATE modifier or UPDATE_OR_WRITE modifier; false otherwise.
  - isWriteOnly
```
public static boolean isWriteOnly(int mod)
```
    Return true if the integer argument includes the WRITE_ONLY modifier, false otherwise.
    
    Parameters:
    
    mod - a set of modifiers
    
    Returns:
    
    true if mod includes the WRITE_ONLY modifier; false otherwise.
  - isNoReturnValue
```
public static boolean isNoReturnValue(int mod)
```
    Return true if the integer argument includes the NO_RETURN_VALUE modifier, false otherwise.
    
    Parameters:
    
    mod - a set of modifiers
    
    Returns:
    
    true if mod includes the NO_RETURN_VALUE modifier; false otherwise.
  - isReturnPrevOnUpdate
```
public static boolean isReturnPrevOnUpdate(int mod)
```
    Return true if the integer argument includes the RETURN_PREV_ON_UPDATE modifier, false otherwise.
    
    Parameters:
    
    mod - a set of modifiers
    
    Returns:
    
    true if mod includes the RETURN_PREV_ON_UPDATE modifier; false otherwise.
  - isMemoryOnlySearch
```
public static boolean isMemoryOnlySearch(int mod)
```
    Return true if the integer argument includes the MEMORY_ONLY_SEARCH modifier, false otherwise.
    
    Parameters:
    
    mod - a set of modifiers
    
    Returns:
    
    true if mod includes the MEMORY_ONLY_SEARCH modifier; false otherwise.
  - isPotentialUpdate
```
public static boolean isPotentialUpdate(int mod)
```

Class UpdateModifiers

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Field Detail

WRITE_ONLY

UPDATE_ONLY

UPDATE_OR_WRITE

PARTIAL_UPDATE

NO_RETURN_VALUE

RETURN_PREV_ON_UPDATE

MEMORY_ONLY_SEARCH

Constructor Detail

UpdateModifiers

Method Detail

isUpdateOrWrite

isPartialUpdate

isUpdateOnly

isUpdate

isWriteOnly

isNoReturnValue

isReturnPrevOnUpdate

isMemoryOnlySearch

isPotentialUpdate