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## org.modeshape.graph.request
Class UpdateValuesRequest

    java.lang.Object
      org.modeshape.graph.request.Request
          org.modeshape.graph.request.ChangeRequest
              org.modeshape.graph.request.UpdateValuesRequest

All Implemented Interfaces:
  Serializable, Cloneable, PropertyChangeRequest

    public class UpdateValuesRequest

extends ChangeRequest
implements PropertyChangeRequest

Instruction to update the values for a certain property on the node at the specified location.

This request is capable of specifying specific values for the property that will be added or removed. Other values for the property not be affected by this request. The request contains a workspace name and a location that uniquely identify a node in the workspace as well as the name of property (that may or may not previously exist) on the node. The request also contains zero or more values to add and zero or more values to remove from the property. All values will be appended to the list of values. Removals are processed before additions.

Even if the property has no values after this call, the property itself will not be removed by this request.

Note that the number of values in a property (e.g., `Property.size()`, `Property.isEmpty()`, `Property.isSingle()`, and `Property.isMultiple()`) has no influence on whether the property should be removed. It is possible for a property to have no values.

See Also:
  Serialized Form

Constructor Summary
`UpdateValuesRequest(String workspaceName, Location on, Name propertyName, List<Object> addedValues, List<Object> removedValues)`

Method Summary
`List<Object>` | `addedValues()` Get the list of values to be added.
`Location` | `changedLocation()` Get the location of the top-most node that is to be changed by this request.
`String` | `changedWorkspace()` Get the name of the workspace that was changed by this request.
`boolean` | `changes(String workspace, Path path)` Determine if this request changes the branch at the given path.
`UpdateValuesRequest` | `clone()` This method does not clone the results.
`List<Object>` | `getActualAddedValues()` Get the actual added values.
`Location` | `getActualLocationOfNode()` Get the actual location of the node that was updated.
`Property` | `getActualProperty()` Get the actual node property that was created or updated.
`List<Object>` | `getActualRemovedValues()` Get the actual removed values.
`RequestType` | `getType()` Returns the type of the request
`String` | `inWorkspace()` Get the name of the workspace in which the node exists.
`boolean` | `isNewProperty()` Get whether the `property` was created.
`boolean` | `isReadOnly()` Return whether this request only reads information.
`Location` | `on()` Get the location defining the node that is to be updated.
`Name` | `property()` Get the name of the property that is to be updated.
`List<Object>` | `removedValues()` Get the list of values to be removed.
`void` | `setActualLocation(Location actual, List<Object> actualAddedValues, List<Object> actualRemovedValues)`
`void` | `setActualProperty(Property property, boolean created)` Record that the property did not exist prior to the processing of this request and was actually created by this request.
`String` | `toString()`

Methods inherited from class org.modeshape.graph.request.Request
`cancel, checkNotFrozen, freeze, getError, hasError, isCancelled, isFrozen, printable, printable, setError, setLatchForFreezing`

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

Constructor Detail

### UpdateValuesRequest

    public UpdateValuesRequest(String workspaceName,
                               Location on,
                               Name propertyName,
                               List<Object> addedValues,
                               List<Object> removedValues)

Method Detail

### on

    public Location on()

  Get the location defining the node that is to be updated.

  Returns:
    the location of the node; never null

### property

    public Name property()

  Get the name of the property that is to be updated.

  Returns:
    the name of the property; never null

### inWorkspace

    public String inWorkspace()

  Get the name of the workspace in which the node exists.

  Returns:
    the name of the workspace; never null

### addedValues

    public List<Object> addedValues()

  Get the list of values to be added.

  Returns:
    the values (if any) to be added; never null

### removedValues

    public List<Object> removedValues()

  Get the list of values to be removed.

  Returns:
    the values (if any) to be removed; never null

### changedLocation

    public Location changedLocation()

  Description copied from class: `ChangeRequest`
  Get the location of the top-most node that is to be changed by this request. If this request has been completed, this location will always have a `path`.

  Specified by:
    `changedLocation` in class `ChangeRequest`
  Returns:
    the location changed by this request

### changedWorkspace

    public String changedWorkspace()

  Description copied from class: `ChangeRequest`
  Get the name of the workspace that was changed by this request.

  Specified by:
    `changedWorkspace` in class `ChangeRequest`
  Returns:
    the name of the workspace changed by this request

### changes

    public boolean changes(String workspace,
                           Path path)

  Description copied from class: `ChangeRequest`
  Determine if this request changes the branch at the given path.

  Specified by:
    `changes` in class `ChangeRequest`
  Parameters:
    `workspace` - the name of the workspace; may not be null
    `path` - the path; may not be null
  Returns:
    true if this request changes a node under the given path

### isReadOnly

    public boolean isReadOnly()

  Description copied from class: `Request`
  Return whether this request only reads information.

  Specified by:
    `isReadOnly` in class `Request`
  Returns:
    true if this request reads information, or false if it requests that the repository content be changed in some way

### setActualLocation

    public void setActualLocation(Location actual,
                                  List<Object> actualAddedValues,
                                  List<Object> actualRemovedValues)

### setActualProperty

    public void setActualProperty(Property property,
                                  boolean created)

  Record that the property did not exist prior to the processing of this request and was actually created by this request. This method must be called when processing the request, and the actual location must have a `path` .

  Parameters:
    `property` - the property being created or updated (may not be `null`)
    `created` - true if the property was created by this request, or false if this request updated an existing property
  Throws:
    `IllegalStateException` - if the request is frozen
    `IllegalArgumentException` - if the property is `null`

### getActualProperty

    public Property getActualProperty()

  Get the actual node property that was created or updated.

  Returns:
    the actual property or `null` if the actual property was not set

### getActualLocationOfNode

    public Location getActualLocationOfNode()

  Get the actual location of the node that was updated.

  Returns:
    the actual location, or null if the actual location was not set

### getActualAddedValues

    public List<Object> getActualAddedValues()

  Get the actual added values. This should always be identical to the list of values that were requested to be added.

  Returns:
    the values that were added to the node when this request was processed; never null

### getActualRemovedValues

    public List<Object> getActualRemovedValues()

  Get the actual removed values. This will differ from the values that were requested to be removed if some of the values that were requested to be removed were not already values for the property.

  Returns:
    the values that were removed from the node when this request was processed; never null

### isNewProperty

    public boolean isNewProperty()

  Get whether the `property` was created.

  Returns:
    true if this request created the property, or false if this request changed an existing property

### clone

    public UpdateValuesRequest clone()

  This method does not clone the results.

  This method does not clone the results.

  Specified by:
    `clone` in class `ChangeRequest`
  See Also:
    `ChangeRequest.clone()`

### toString

    public String toString()

  Overrides:
    `toString` in class `Object`
  See Also:
    `Object.toString()`

### getType

    public RequestType getType()

  Description copied from class: `Request`
  Returns the type of the request

  Specified by:
    `getType` in class `Request`
  Returns:
    the type of the request

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