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## org.drools.command
Class CommandFactory

    java.lang.Object
      org.drools.command.CommandFactory

    public class CommandFactory

extends Object

The CommandFactory returns Commands that can be used by classes that implement CommandExecutor. Typically more than one Command will want to be executed, where is where the BatchExecution comes in, which takes a List of commands, think of it as CompositeCommand.

Out of the box marshalling to XML is support for the Commands, specifically the BatchExecution command and ExecutionResults, using the Drools Pipeline. If the drools-pipeline module is added then the PipelineFactory can be used in conjunction with the BatchExecutionHelper to marshall to and from XML. BatchExecutionHelper also provides additional documentation on the supported XML format.

`

This api is experimental and thus the classes and the interfaces returned are subject to change.

Constructor Summary
`CommandFactory()`

Method Summary
`static Command<FactHandle>` | `fromExternalFactHandleCommand(String factHandleExternalForm)`
`static Command<FactHandle>` | `fromExternalFactHandleCommand(String factHandleExternalForm, boolean disconnected)`
`static Command` | `newAbortWorkItem(long workItemId)`
`static BatchExecutionCommand` | `newBatchExecution(List<? extends Command> commands)` This is a special composite command and will execute all the supplied commands in turn.
`static BatchExecutionCommand` | `newBatchExecution(List<? extends Command> commands, String lookup)`
`static Command` | `newCompleteWorkItem(long workItemId, Map<String,Object> results)`
`static Command` | `newFireAllRules()`
`static Command` | `newFireAllRules(int max)`
`static Command` | `newFireAllRules(String outidentifier)`
`static Command` | `newGetGlobal(String identifier)` Gets the global and adds it to the ExecutionResults
`static Command` | `newGetGlobal(String identifier, String outIdentifier)` Gets the global and adds it ot the BatchExecutionresults using the alternative outIdentifier.
`static Command` | `newGetObject(FactHandle factHandle)`
`static Command` | `newGetObject(FactHandle factHandle, String outIdentifier)`
`static Command` | `newGetObjects()`
`static Command` | `newGetObjects(ObjectFilter filter)`
`static Command` | `newGetObjects(ObjectFilter filter, String outIdentifier)`
`static Command` | `newGetObjects(String outIdentifier)`
`static Command` | `newInsert(Object object)` Inserts a new instance
`static Command` | `newInsert(Object object, String outIdentifier)` Inserts a new instance but references via the outIdentifier, which is returned as part of the ExecutionResults
`static Command` | `newInsert(Object object, String outIdentifier, boolean returnObject, String entryPoint)` Inserts a new instance but references via the outIdentifier, which is returned as part of the ExecutionResults The outIdentifier can be null.
`static Command` | `newInsertElements(Collection objects)` Iterate and insert each of the elements of the Collection.
`static Command` | `newInsertElements(Collection objects, String outIdentifier, boolean returnObject, String entryPoint)` Iterate and insert each of the elements of the Collection.
`static Command` | `newKBuilderSetPropertyCommand(String id, String name, String value)`
`static Command` | `newModify(FactHandle factHandle, List<Setter> setters)`
`static Command` | `newNewKnowledgeBuilderConfigurationCommand(String localId)`
`static Command` | `newQuery(String identifier, String name)` Executes a query.
`static Command` | `newQuery(String identifier, String name, Object[] arguments)` Executes a query using the given parameters.
`static Command` | `newRetract(FactHandle factHandle)`
`static Command` | `newSetGlobal(String identifier, Object object)` Sets the global.
`static Command` | `newSetGlobal(String identifier, Object object, boolean out)` Sets the global but also when the out parameter is true specifies that the global is added to the ExecutionResults.
`static Command` | `newSetGlobal(String identifier, Object object, String outIdentifier)` Sets the global but also specifies that the global is added to the ExecutionResults.
`static Setter` | `newSetter(String accessor, String value)`
`static Command` | `newSignalEvent(long processInstanceId, String type, Object event)`
`static Command` | `newSignalEvent(String type, Object event)`
`static Command` | `newStartProcess(String processId)` Start a process
`static Command` | `newStartProcess(String processId, Map<String,Object> parameters)` Start a process using the given parameters.

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

Constructor Detail

### CommandFactory

    public CommandFactory()

Method Detail

### newInsert

    public static Command newInsert(Object object)

  Inserts a new instance

  Parameters:
    `object` -
  Returns:

### newInsert

    public static Command newInsert(Object object,
                                    String outIdentifier)

  Inserts a new instance but references via the outIdentifier, which is returned as part of the ExecutionResults

  Parameters:
    `object` -
    `outIdentifier` -
  Returns:

### newInsert

    public static Command newInsert(Object object,
                                    String outIdentifier,
                                    boolean returnObject,
                                    String entryPoint)

  Inserts a new instance but references via the outIdentifier, which is returned as part of the ExecutionResults The outIdentifier can be null. The entryPoint, which can also be null, specifies the entrypoint the object is inserted into.

  Parameters:
    `object` -
    `outIdentifier` -
    `entryPoint` -
  Returns:

### newInsertElements

    public static Command newInsertElements(Collection objects)

  Iterate and insert each of the elements of the Collection.

  Parameters:
    `objects` - The objects to insert
  Returns:

### newInsertElements

    public static Command newInsertElements(Collection objects,
                                            String outIdentifier,
                                            boolean returnObject,
                                            String entryPoint)

  Iterate and insert each of the elements of the Collection.

  Parameters:
    `objects` - The objects to insert
    `outIdentifier` - Identifier to lookup the returned objects
    `returnObject` - boolean to specify whether the inserted Collection is part of the ExecutionResults
    `entryPoint` - Optional EntryPoint for the insertions
  Returns:

### newRetract

    public static Command newRetract(FactHandle factHandle)

### newSetter

    public static Setter newSetter(String accessor,
                                   String value)

### newModify

    public static Command newModify(FactHandle factHandle,
                                    List<Setter> setters)

### newGetObject

    public static Command newGetObject(FactHandle factHandle)

### newGetObject

    public static Command newGetObject(FactHandle factHandle,
                                       String outIdentifier)

### newGetObjects

    public static Command newGetObjects()

### newGetObjects

    public static Command newGetObjects(String outIdentifier)

### newGetObjects

    public static Command newGetObjects(ObjectFilter filter)

### newGetObjects

    public static Command newGetObjects(ObjectFilter filter,
                                        String outIdentifier)

### newSetGlobal

    public static Command newSetGlobal(String identifier,
                                       Object object)

  Sets the global. Does not add the global to the ExecutionResults.

  Parameters:
    `identifier` - The identifier of the global
    `object` - The instance to be set as the global.
  Returns:

### newSetGlobal

    public static Command newSetGlobal(String identifier,
                                       Object object,
                                       boolean out)

  Sets the global but also when the out parameter is true specifies that the global is added to the ExecutionResults.

  Parameters:
    `identifier` - The identifier of the global
    `object` - The instance to be set as the global.
    `out` - When true the global will be added to the ExecutionResults using the global's identifier.
  Returns:

### newSetGlobal

    public static Command newSetGlobal(String identifier,
                                       Object object,
                                       String outIdentifier)

  Sets the global but also specifies that the global is added to the ExecutionResults. Instead of using the global's identifier it uses the outIdentifier when being added to the ExecutionResults.

  Parameters:
    `identifier` - The identifier of the global
    `object` - The instance to be set as the global.
    `outIdentifier` - The identifier used to store the global in the ExecutionResults
  Returns:

### newGetGlobal

    public static Command newGetGlobal(String identifier)

  Gets the global and adds it to the ExecutionResults

  Parameters:
    `identifier` -
  Returns:

### newGetGlobal

    public static Command newGetGlobal(String identifier,
                                       String outIdentifier)

  Gets the global and adds it ot the BatchExecutionresults using the alternative outIdentifier.

  Parameters:
    `identifier` - The identifier of the global
    `outIdentifier` - The identifier used in the ExecutionResults to store the global.
  Returns:

### newFireAllRules

    public static Command newFireAllRules()

### newFireAllRules

    public static Command newFireAllRules(int max)

### newFireAllRules

    public static Command newFireAllRules(String outidentifier)

### newStartProcess

    public static Command newStartProcess(String processId)

  Start a process

  Parameters:
    `processId` -
  Returns:

### newStartProcess

    public static Command newStartProcess(String processId,
                                          Map<String,Object> parameters)

  Start a process using the given parameters.

  Parameters:
    `processId` -
    `parameters` -
  Returns:

### newSignalEvent

    public static Command newSignalEvent(String type,
                                         Object event)

### newSignalEvent

    public static Command newSignalEvent(long processInstanceId,
                                         String type,
                                         Object event)

### newCompleteWorkItem

    public static Command newCompleteWorkItem(long workItemId,
                                              Map<String,Object> results)

### newAbortWorkItem

    public static Command newAbortWorkItem(long workItemId)

### newQuery

    public static Command newQuery(String identifier,
                                   String name)

  Executes a query. The query results will be added to the ExecutionResults using the given identifier.

  Parameters:
    `identifier` - The identifier to be used for the results when added to the ExecutionResults
    `name` - The name of the query to execute
  Returns:

### newQuery

    public static Command newQuery(String identifier,
                                   String name,
                                   Object[] arguments)

  Executes a query using the given parameters. The query results will be added to the ExecutionResults using the given identifier.

  Parameters:
    `identifier` - The identifier to be used for the results when added to the ExecutionResults
    `name` - The name of the query to execute
    `arguments` - The arguments to be used for the query parameters
  Returns:

### newBatchExecution

    public static BatchExecutionCommand newBatchExecution(List<? extends Command> commands)

  This is a special composite command and will execute all the supplied commands in turn.

  Parameters:
    `commands` -
  Returns:

### newBatchExecution

    public static BatchExecutionCommand newBatchExecution(List<? extends Command> commands,
                                                          String lookup)

  Returns:

### newKBuilderSetPropertyCommand

    public static Command newKBuilderSetPropertyCommand(String id,
                                                        String name,
                                                        String value)

### newNewKnowledgeBuilderConfigurationCommand

    public static Command newNewKnowledgeBuilderConfigurationCommand(String localId)

### fromExternalFactHandleCommand

    public static Command<FactHandle> fromExternalFactHandleCommand(String factHandleExternalForm)

### fromExternalFactHandleCommand

    public static Command<FactHandle> fromExternalFactHandleCommand(String factHandleExternalForm,
                                                                    boolean disconnected)

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