Examples with WindowDef com.sap.hadoop.windowing.query2.definition.WindowDef used on opensource projects

Example 6 with WindowDef

use of com.sap.hadoop.windowing.query2.definition.WindowDef in project SQLWindowing by hbutani.

the class WindowFunctionTranslation method translate.

public static WindowFunctionDef translate(QueryDef qDef, TableFuncDef windowTableFnDef, WindowFunctionSpec wFnSpec) throws WindowingException {
    QueryTranslationInfo tInfo = qDef.getTranslationInfo();
    InputInfo iInfo = tInfo.getInputInfo(windowTableFnDef.getInput());
    WindowFunctionDef wFnDef = new WindowFunctionDef();
    wFnDef.setSpec(wFnSpec);
    /*
		 * translate args
		 */
    ArrayList<ASTNode> args = wFnSpec.getArgs();
    if (args != null) {
        for (ASTNode expr : args) {
            ArgDef argDef = translateWindowFunctionArg(qDef, windowTableFnDef, iInfo, expr);
            wFnDef.addArg(argDef);
        }
    }
    if (RANKING_FUNCS.contains(wFnSpec.getName())) {
        setupRankingArgs(qDef, windowTableFnDef, wFnDef, wFnSpec);
    }
    WindowDef wDef = translateWindowSpec(qDef, iInfo, wFnSpec);
    wFnDef.setWindow(wDef);
    validateWindowDefForWFn(windowTableFnDef, wFnDef);
    setupEvaluator(wFnDef);
    return wFnDef;
}