org.smartfrog.sfcore.languages.sf.functions
Class BaseBinaryOperator

java.lang.Object
  org.smartfrog.sfcore.languages.sf.functions.BaseFunction
      org.smartfrog.sfcore.languages.sf.functions.BaseBinaryOperator

All Implemented Interfaces:

MessageKeys, Function

Direct Known Subclasses:

Divide, EQ, GE, GT, LE, LT, Minus, NE

public abstract class BaseBinaryOperator
extends BaseFunction
implements MessageKeys

Defines the baseoperator for the binary operator functions.

Field Summary

Fields inherited from class org.smartfrog.sfcore.languages.sf.functions.BaseFunction

context, name

Fields inherited from interface org.smartfrog.sfcore.common.MessageKeys

CANNOT_LINK_TO_PREDICATE, COMPONENT_TERMINATED, COPY_FAILED, COPY_SERIALIZE_FAILED, ERROR_NO_SECURITY_BUT_REQUIRED, ILLEGAL_BOOLEAN_PARAMETER, ILLEGAL_NUMERIC_PARAMETER, ILLEGAL_STRING_PARAMETER, ILLEGAL_VECTOR_PARAMETER, LIVENESS_SEND_FAILURE, LIVENESS_SEND_FAILURE_IN, MISSING_PARAMETER, MSG_CLASS_NOT_FOUND, MSG_CONNECT_ERR, MSG_CONT_OTHER_DEPLOY, MSG_DEPLOY_COMP_TERMINATED, MSG_DEPLOY_SUCCESS, MSG_DEPLOYWITH_PHASE_FAILED, MSG_DETACH_SUCCESS, MSG_DETACH_TERMINATE_SUCCESS, MSG_ERR_DEPLOY_FROM_URL, MSG_ERR_PARSE, MSG_ERR_RESOLVE_PHASE, MSG_ERR_SF_RUNNING, MSG_ERR_TERM, MSG_FAILED_INET_ADDRESS_LOOKUP, MSG_FAILED_TO_CONTACT_PARENT, MSG_FILE_NOT_FOUND, MSG_HOOK_ACTION_FAILED, MSG_ILLEGAL_ACCESS, MSG_ILLEGAL_CLASS_TYPE, MSG_ILLEGAL_CLASS_TYPE_EXPECTING_GOT, MSG_ILLEGAL_REFERENCE, MSG_INPUTSTREAM_NULL, MSG_INSTANTIATION_ERROR, MSG_INVALID_OBJECT_TYPE, MSG_INVOCATION_TARGET, MSG_LANG_NOT_FOUND, MSG_LIVENESS_START_FAILED, MSG_LOADING_URL, MSG_METHOD_NOT_FOUND, MSG_NON_REP_ATTRIB, MSG_NOT_COMPONENT_REFERENCE, MSG_NOT_FOUND_ATTRIBUTE, MSG_NOT_FOUND_REFERENCE, MSG_NOT_VALUE_REFERENCE, MSG_NULL_DEF_METHOD, MSG_NULL_URL, MSG_OBJECT_REGISTRATION_FAILED, MSG_PARENT_LOCATION_FAILED, MSG_PING_SUCCESS, MSG_RANDM_ERR, MSG_REMOTE_CONNECT_ERR, MSG_REPEATED_ATTRIBUTE, MSG_SF_DEAD, MSG_SF_READY, MSG_SF_TERMINATED, MSG_STACKTRACE_FOLLOWS, MSG_START_COMP_TERMINATED, MSG_TERMINATE_SUCCESS, MSG_UNHANDLED_EXCEPTION, MSG_UNKNOWN_HOST, MSG_UNRESOLVED_REFERENCE, MSG_UNRESOLVED_REFERENCE_IN, MSG_UPDATE_SUCCESS, MSG_URL_NOT_FOUND, MSG_URL_TO_PARSE_NOT_FOUND, MSG_WARNING_LIVENESS_ENABLED, MSG_WARNING_STACKTRACE_DISABLED, MSG_WARNING_STACKTRACE_ENABLED, ROOT_MUST_BE_COMPONENT, WARN_NO_SECURITY

Constructor Summary

BaseBinaryOperator()

Method Summary

protected java.lang.Object	doFunction() Implements the functionality of base operator.
protected abstract java.lang.Object	doOperator(java.lang.Object a, java.lang.Object b) The method to implement the functionality of any operator.

Methods inherited from class org.smartfrog.sfcore.languages.sf.functions.BaseFunction

doit

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BaseBinaryOperator

public BaseBinaryOperator()

Method Detail

doOperator

protected abstract java.lang.Object doOperator(java.lang.Object a,
                                               java.lang.Object b)
                                        throws SmartFrogCompileResolutionException

The method to implement the functionality of any operator.

Parameters:

a - Object 1 for operator

b - Object 2 for operator

Returns:

an Object

Throws:

SmartFrogCompileResolutionException

doFunction

protected java.lang.Object doFunction()
                               throws SmartFrogCompileResolutionException

Implements the functionality of base operator. it expects to find two attributes: left and right if these are not present it will throw an exception

Specified by:

doFunction in class BaseFunction

Returns:

the result of the operation

Throws:

SmartFrogCompileResolutionException - if either of the required attributes are not present or the operation throws an exception