InstanceCreator

InstanceCreator#

package: org.yuanrong.call.

public class InstanceCreator extends Handler#

Creates an operation class for creating a Java stateful function instance.

Note

The instanceCreator is the creator of Java class instances; it is the return type of the interface YR.instance(YRFuncR<A> func).

Users can use the invoke method of instanceCreator to create Java class instances and return the InstanceHandler class handle.

Interface description#

public InstanceCreator(YRFuncR<A> func)#

The constructor of InstanceCreator.

  • Parameters:

    • func - YRFuncR class instance, Java function name.

public InstanceCreator(YRFuncR<A> func, ApiType apiType)#

The constructor of InstanceCreator.

  • Parameters:

    • func - YRFuncR class instance, Java function name.

    • apiType - The enumeration class has two values: Function and Posix. It is used internally by openYuanrong to distinguish function types. The default is Function.

public InstanceCreator(YRFuncR<A> func, String name, String nameSpace)#

The constructor of InstanceCreator.

  • Parameters:

    • func - YRFuncR class instance, Java function name.

    • name - The instance name of a named instance. When only name exists, the instance name will be set to name.

    • nameSpace - Namespace of the named instance. When both name and nameSpace exist, the instance name will be concatenated into nameSpace-name. This field is currently only used for concatenation, and namespace isolation and other related functions will be completed later.

public InstanceCreator(YRFuncR<A> func, String name, String nameSpace, ApiType apiType)#

The constructor of InstanceCreator.

  • Parameters:

    • func - YRFuncR class instance, Java function name.

    • name - The instance name of a named instance. When only name exists, the instance name will be set to name.

    • nameSpace - Namespace of the named instance. When both name and nameSpace exist, the instance name will be concatenated into nameSpace-name. This field is currently only used for concatenation, and namespace isolation and other related functions will be completed later.

    • apiType - The enumeration class has two values: Function and Posix. It is used internally by openYuanrong to distinguish function types. The default is Function.

public InstanceHandler invoke(Object… args) throws YRException#

The member method of the InstanceCreator class is used to create a Java class instance.

  • Parameters:

    • args - The input parameters required to create a class instance.

  • Returns:

    InstanceHandler Class handle.

  • Throws：

    • YRException - Unified exception types thrown.

public InstanceCreator<A> options(InvokeOptions opt)#

The member method of the InstanceCreator class is used to dynamically modify the parameters for creating a Java function instance.

InvokeOptions invokeOptions = new InvokeOptions();
invokeOptions.setCpu(1500);
invokeOptions.setMemory(1500);
InstanceCreator instanceCreator = YR.instance(Counter::new).options(invokeOptions);
InstanceHandler instanceHandler = instanceCreator.invoke(1);

  • Parameters:

    • opt - Function call options, used to specify functions such as calling resources.

  • Returns:

    InstanceCreator Class handle.