How to use

registerMacro

method

in

org.apache.hadoop.hive.ql.exec.Registry

public FunctionInfo registerMacro(String macroName, ExprNodeDesc body,
  List<String> colNames, List<TypeInfo> colTypes) {
 return registerMacro(macroName, body, colNames, colTypes, null);
}

public FunctionInfo registerMacro(String macroName, ExprNodeDesc body,
  List<String> colNames, List<TypeInfo> colTypes) {
 return registerMacro(macroName, body, colNames, colTypes, null);
}

/**
 * Registers the appropriate kind of temporary function based on a class's
 * type.
 *
 * @param macroName name under which to register the macro
 *
 * @param body the expression which the macro evaluates to
 *@param colNames the names of the arguments to the macro
 *@param colTypes the types of the arguments to the macro
 */
public static void registerTemporaryMacro(
  String macroName, ExprNodeDesc body, List<String> colNames, List<TypeInfo> colTypes) {
 SessionState.getRegistryForWrite().registerMacro(macroName, body, colNames, colTypes);
}

/**
 * Registers the appropriate kind of temporary function based on a class's
 * type.
 *
 * @param macroName name under which to register the macro
 *
 * @param body the expression which the macro evaluates to
 *@param colNames the names of the arguments to the macro
 *@param colTypes the types of the arguments to the macro
 */
public static void registerTemporaryMacro(
  String macroName, ExprNodeDesc body, List<String> colNames, List<TypeInfo> colTypes) {
 SessionState.getRegistryForWrite().registerMacro(macroName, body, colNames, colTypes);
}

public FunctionInfo registerMacro(String macroName, ExprNodeDesc body,
  List<String> colNames, List<TypeInfo> colTypes) {
 return registerMacro(macroName, body, colNames, colTypes, null);
}

/**
 * Registers the appropriate kind of temporary function based on a class's
 * type.
 *
 * @param macroName name under which to register the macro
 *
 * @param body the expression which the macro evaluates to
 *@param colNames the names of the arguments to the macro
 *@param colTypes the types of the arguments to the macro
 */
public static void registerTemporaryMacro(
 String macroName, ExprNodeDesc body, List<String> colNames, List<TypeInfo> colTypes) {
 SessionState.getRegistryForWrite().registerMacro(macroName, body, colNames, colTypes);
}