org.tentackle.persist.wurblet.DbIsReferencing Maven / Gradle / Ivy

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// wurblet generated by Wurbelizer 21.6.0.0, see https://wurbelizer.org

package org.tentackle.persist.wurblet;

import org.tentackle.wurblet.*;
import org.tentackle.buildsupport.*;
import java.util.*;
import java.io.*;
import org.tentackle.common.*;
import org.wurbelizer.wurbel.*;
import org.tentackle.sql.*;
import org.tentackle.model.*;
import org.wurbelizer.wurblet.*;

/**
 * ({@code @wurblet}) Generate code to check whether a low-level persistent object is referenced.
 * 
 * usage:

 * @wurblet <tag> DbIsReferencing [--private] [--append=<sqltext>] [--classvar=<classvariables>] <expression>
 * 

 * arguments:
 * 

 * --private: makes the method private (default is public).
 * --append=<sqltext>: appends an sql-string.
 * --classvar=<classvariables>: reference to classvariables, if pick the statement-IDs from there.
 * <expression>: see {@link WurbletArgumentParser}.
 * 
 * For more options, see {@link DbModelWurblet}.
 */
public class DbIsReferencing extends DbModelWurblet {

  @Override
  public void run() throws WurbelException {
    super.run();
    try {
      wurbel();
    }
    catch (Throwable t) {
      if (t instanceof WurbelException) {
        throw (WurbelException) t;
      }
      throw new WurbelException("wurblet " + this + " failed", t);
    }
  }

  // ----------------- begin wurblet code -----------------

  private void wurbel() throws WurbelException, ModelException {

    String className = getClassName();
    String methodName = getMethodName();

    String  classVar    = null;
    String  scope       = "public";
    String  append      = null;

    for (String arg: getOptionArgs())  {
      if (arg.equals("private")) {
        scope = "private";
        setRemote(false);
      }
      else if (arg.startsWith("append=")) {
        append = arg.substring(7);
      }
      else if (arg.startsWith("classvar="))  {
        classVar = arg.substring(9);
      }
    }

    if (classVar == null) {
      classVar = "";
    }
    else  {
      classVar += ".";    // add dot to access class var
    }

    if (getExpressionArguments().isEmpty())  {
      throw new WurbelException("no select keys given");
    }

    String params = buildMethodParameters();
    String iparms = buildInvocationParameters();
    String statementId = createStatementId();

    out.print(source[0]); // 55:2 = "  "
    out.print(scope);
    out.print(source[1]); // 56:11 = " boolean "
    out.print(methodName);
    out.print(source[2]); // 56:34 = "("
    out.print(params);
    out.print(source[3]); // 56:45 = ") {"

    if (isRemote()) {
      // create includes
      RemoteIncludes genInc = new RemoteIncludes(this);
      PrintStream implOut      = genInc.getImplStream();
      PrintStream remoteOut    = genInc.getRemoteStream();
      out.print(source[4]); // 64:2 = "    if (getSession().isRemote())  {    ..."
      remoteOut.print(source[5]); // 67:16 = "  boolean "
      remoteOut.print(methodName);
      remoteOut.print(source[6]); // 68:24 = "("
      remoteOut.print(params);
      remoteOut.print(source[7]); // 68:35 = ") throws RemoteException;"
      implOut.print(source[8]); // 69:14 = "  @Override  public boolean "
      implOut.print(methodName);
      implOut.print(source[9]); // 72:31 = "("
      implOut.print(params);
      implOut.print(source[10]); // 72:42 = ") throws RemoteException {    try {   ..."
      implOut.print(methodName);
      implOut.print(source[11]); // 74:36 = "("
      implOut.print(iparms);
      implOut.print(source[12]); // 74:47 = ");    }    catch (RuntimeException e) ..."
      out.print(source[13]); // 80:6 = "        return getRemoteDelegate()."
      out.print(methodName);
      out.print(source[14]); // 81:49 = "("
      out.print(iparms);
      out.print(source[15]); // 81:60 = ");      }      catch (RemoteException ..."
    } // end if remote

     out.print(source[16]); // 90:2 = "    PreparedStatementWrapper st = getPre..."
     out.print(classVar);
     out.print(statementId);
     out.print(source[17]); // 91:82 = ",      b -> {        StringBuilder sql..."
    if (getEntity().getSuperEntity() != null && getEntity().getHierarchyInheritanceType() == InheritanceType.SINGLE) {
      out.print(source[18]); // genwhere.incl:3:2 = "        sql.append(getSqlClassIdConditio..."
    }
    boolean andPrepended = false;
    if (getContextAttribute() != null) {
        andPrepended = true;
        out.print(source[19]); // genwhere.incl:10:2 = "        sql.append(Backend.SQL_AND)    ..."
        out.print(getColumnNameConstant(getContextAttribute(), 0));
        out.print(source[20]); // genwhere.incl:12:70 = ")           .append(Backend.SQL_EQUAL_P..."
    }

    boolean needParentheses = false;

    if (!getExpressionArguments().isEmpty()) {
      needParentheses = getExpression().needParenthesesAfterAndOperator();
      if (andPrepended || needParentheses) {
        out.print(source[21]); // genwhere.incl:22:2 = "        sql.append(Backend.SQL_AND).appe..."
      }
      else {
        out.print(source[22]); // genwhere.incl:27:2 = "        sql.append(Backend.SQL_AND);"
        if (needParentheses && getEntity().getHierarchyInheritanceType() == InheritanceType.SINGLE) {
          out.print(source[23]); // genwhere.incl:31:2 = "        if (classIdRequired) {         ..."
        }
      }

      // not a lambda because reference to instance of codeWriter within itself
      final CodeGenerator