How to use

executeSingleResult

method

in

org.camunda.bpm.engine.impl.AbstractQuery

@SuppressWarnings("unchecked")
public U singleResult() {
 this.resultType = ResultType.SINGLE_RESULT;
 if (commandExecutor!=null) {
  return (U) commandExecutor.execute(this);
 }
 return executeSingleResult(Context.getCommandContext());
}

@SuppressWarnings("unchecked")
public U singleResult() {
 this.resultType = ResultType.SINGLE_RESULT;
 if (commandExecutor!=null) {
  return (U) commandExecutor.execute(this);
 }
 return executeSingleResult(Context.getCommandContext());
}

public Object execute(CommandContext commandContext) {
 if (resultType==ResultType.LIST) {
  return evaluateExpressionsAndExecuteList(commandContext, null);
 } else if (resultType==ResultType.SINGLE_RESULT) {
  return executeSingleResult(commandContext);
 } else if (resultType==ResultType.LIST_PAGE) {
  return evaluateExpressionsAndExecuteList(commandContext, null);
 } else if (resultType == ResultType.LIST_IDS) {
  return evaluateExpressionsAndExecuteIdsList(commandContext);
 } else {
  return evaluateExpressionsAndExecuteCount(commandContext);
 }
}

public Object execute(CommandContext commandContext) {
 if (resultType==ResultType.LIST) {
  return evaluateExpressionsAndExecuteList(commandContext, null);
 } else if (resultType==ResultType.SINGLE_RESULT) {
  return executeSingleResult(commandContext);
 } else if (resultType==ResultType.LIST_PAGE) {
  return evaluateExpressionsAndExecuteList(commandContext, null);
 } else if (resultType == ResultType.LIST_IDS) {
  return evaluateExpressionsAndExecuteIdsList(commandContext);
 } else {
  return evaluateExpressionsAndExecuteCount(commandContext);
 }
}

@SuppressWarnings("unchecked")
public U singleResult() {
 this.resultType = ResultType.SINGLE_RESULT;
 if (commandExecutor!=null) {
  return (U) commandExecutor.execute(this);
 }
 return executeSingleResult(Context.getCommandContext());
}

public Object execute(CommandContext commandContext) {
 if (resultType==ResultType.LIST) {
  return evaluateExpressionsAndExecuteList(commandContext, null);
 } else if (resultType==ResultType.SINGLE_RESULT) {
  return executeSingleResult(commandContext);
 } else if (resultType==ResultType.LIST_PAGE) {
  return evaluateExpressionsAndExecuteList(commandContext, null);
 } else if (resultType == ResultType.LIST_IDS) {
  return evaluateExpressionsAndExecuteIdsList(commandContext);
 } else {
  return evaluateExpressionsAndExecuteCount(commandContext);
 }
}