net.sf.jsqlparser.expression.Function类的使用及代码示例

x33g5p2x  于2022-01-19 转载在 其他  
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本文整理了Java中net.sf.jsqlparser.expression.Function类的一些代码示例，展示了Function类的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Function类的具体详情如下：
包路径：net.sf.jsqlparser.expression.Function
类名称：Function

Function介绍

[英]A function as MAX,COUNT...
[中]一个函数作为MAX，COUNT。。。

代码示例

代码示例来源：origin: geotools/geotools

public void visit(Function function) {
  Function qfunction = new Function();
  qfunction.setAllColumns(function.isAllColumns());
  qfunction.setEscaped(function.isEscaped());
  qfunction.setName(function.getName());
  ExpressionList parameters = function.getParameters();
  ExpressionList qualifiedParams;
  qualifiedParams =
      (ExpressionList) ItemsListQualifier.qualify(session, tableAliases, parameters);
  qfunction.setParameters(qualifiedParams);
  this._qualifiedExpression = qfunction;
}

代码示例来源：origin: JSQLParser/JSqlParser

@Override
public void visit(Function function) {
  if (function.getParameters() != null) {
    function.getParameters().accept(this);
  }
  if (function.getKeep() != null) {
    function.getKeep().accept(this);
  }
}

代码示例来源：origin: alibaba/mdrill

public void visit(Function function) {
  if (function.isEscaped()) {
    buffer.append("{fn ");
  }
  buffer.append(function.getName());
  if (function.isAllColumns()) {
    buffer.append("(*)");
  } else if (function.getParameters() == null) {
    buffer.append("()");
  } else {
    boolean oldUseBracketsInExprList = useBracketsInExprList;
    if (function.isDistinct()) {
      useBracketsInExprList = false;
      buffer.append("(DISTINCT ");
    }
    visit(function.getParameters());
    useBracketsInExprList = oldUseBracketsInExprList;
    if (function.isDistinct()) {
      buffer.append(")");
    }
  }
  if (function.isEscaped()) {
    buffer.append("}");
  }
}

代码示例来源：origin: JSQLParser/JSqlParser

@Override
public void visit(Function function) {
  if (function.isEscaped()) {
    buffer.append("{fn ");
  buffer.append(function.getName());
  if (function.isAllColumns() && function.getParameters() == null) {
    buffer.append("(*)");
  } else if (function.getParameters() == null && function.getNamedParameters() == null) {
    buffer.append("()");
  } else {
    boolean oldUseBracketsInExprList = useBracketsInExprList;
    if (function.isDistinct()) {
      useBracketsInExprList = false;
      buffer.append("(DISTINCT ");
    } else if (function.isAllColumns()) {
      useBracketsInExprList = false;
      buffer.append("(ALL ");
    if(function.getNamedParameters() != null){
      visit(function.getNamedParameters());
    if(function.getParameters() != null){
      visit(function.getParameters());
    if (function.isDistinct() || function.isAllColumns()) {
      buffer.append(")");
  if (function.getAttribute() != null) {
    buffer.append(".").append(function.getAttribute());

代码示例来源：origin: it.unibz.inf.ontop/ontop-obdalib-core

@Override
public void visit(Function function) {
  // ROMAN (22 Sep 2015): longer list of supported functions?
  if (function.getName().toLowerCase().equals("regexp_like")) {
    for (Expression ex :function.getParameters().getExpressions()) 
      ex.accept(this);
  }
  else
    unsupported(function);
}

代码示例来源：origin: org.opencadc/cadc-adql

@Override
public void visit(Function function)
{
  log.debug("visit(function)" + function);
  String functionName = function.getName();
  String newName = map.get(functionName);
  if (newName != null)
    function.setName(newName);
  // DIST returns radians, we want degrees.
  if (function.getName().equals("DIST"))
  {
    Function dist = new Function();
    dist.setName("dist");
    dist.setParameters(function.getParameters());
    List<Expression> list = new ArrayList<Expression>();
    list.add(dist);
    ExpressionList parameters = new ExpressionList();
    parameters.setExpressions(list);
    function.setName("degrees");
    function.setParameters(parameters);
  }
}

代码示例来源：origin: baomidou/mybatis-plus

/**
   * 获取jsqlparser中count的SelectItem
   */
  private static List<SelectItem> countSelectItem() {
    Function function = new Function();
    function.setName("COUNT");
    List<Expression> expressions = new ArrayList<>();
    LongValue longValue = new LongValue(1);
    ExpressionList expressionList = new ExpressionList();
    expressions.add(longValue);
    expressionList.setExpressions(expressions);
    function.setParameters(expressionList);
    List<SelectItem> selectItems = new ArrayList<>();
    SelectExpressionItem selectExpressionItem = new SelectExpressionItem(function);
    selectItems.add(selectExpressionItem);
    return selectItems;
  }
}

代码示例来源：origin: JSQLParser/JSqlParser

boolean jjtc000 = true;
  jjtree.openNodeScope(jjtn000);
  jjtn000.jjtSetFirstToken(getToken(1));Function retval = new Function();
  String funcName = null;
  String tmp = null;
   case 236:{
    jj_consume_token(236);
retval.setEscaped(true);
    break;
     case K_DISTINCT:{
      jj_consume_token(K_DISTINCT);
retval.setDistinct(true);
      break;
retval.setAllColumns(true);
      break;
     case 201:{
      jj_consume_token(201);
retval.setAllColumns(true);
      break;
    jj_consume_token(202);
    tmp = RelObjectName();
retval.setAttribute(tmp);
    break;

代码示例来源：origin: alibaba/mdrill

final public Function Function() throws ParseException {
   Function retval = new Function();
   String funcName = null;
   String tmp = null;
 case 102:
  jj_consume_token(102);
        retval.setEscaped(true);
  break;
 default:
   case K_DISTINCT:
    jj_consume_token(K_DISTINCT);
            retval.setDistinct(true);
    break;
   case K_ALL:
    jj_consume_token(K_ALL);
                                retval.setAllColumns(true);
    break;
   default:
  case 82:
   jj_consume_token(82);
                                                                       retval.setAllColumns(true);
   break;
  default:
     retval.setParameters(expressionList);
     retval.setName(funcName);
   {if (true) return retval;}

代码示例来源：origin: com.eas.platypus/platypus-js-sql-parser

public void visit(Function function) {
  if (function.isEscaped()) {
    buffer.append(function.getCommentBeginEscaped() != null ? function.getCommentBeginEscaped() + " " + ExpressionDeParser.LINE_SEPARATOR : "").append("{fn ");
  }
  buffer.append(function.getCommentName() != null ? function.getCommentName() + " " + ExpressionDeParser.LINE_SEPARATOR : "").append(function.getName());
  if (function.isAllColumns()) {
    buffer.append(function.getCommentBeginEscaped() != null ? function.getCommentBeginBracket() + " " + ExpressionDeParser.LINE_SEPARATOR : "").append("(").append(function.getCommentBeginEscaped() != null ? function.getCommentAllColumns() + " " + ExpressionDeParser.LINE_SEPARATOR : "").append("*").append(function.getCommentBeginEscaped() != null ? function.getCommentEndBracket() + " " + ExpressionDeParser.LINE_SEPARATOR : "").append(")");
  } else if (function.getParameters() == null) {
    buffer.append(function.getCommentBeginEscaped() != null ? function.getCommentBeginBracket() + " " + ExpressionDeParser.LINE_SEPARATOR : "").append("(").append(function.getCommentEndEscaped() != null ? function.getCommentEndBracket() + " " + ExpressionDeParser.LINE_SEPARATOR : "").append(")");
  } else {
    boolean oldUseBracketsInExprList = useBracketsInExprList;
    if (function.isDistinct()) {
      useBracketsInExprList = false;
      buffer.append(function.getCommentBeginEscaped() != null ? function.getCommentBeginBracket() + " " + ExpressionDeParser.LINE_SEPARATOR : "").append("(").append(function.getCommentDistinct() != null ? function.getCommentDistinct() + " " + ExpressionDeParser.LINE_SEPARATOR : "").append("Distinct ");
    }
    visit(function.getParameters());
    useBracketsInExprList = oldUseBracketsInExprList;
    if (function.isDistinct()) {
      buffer.append(function.getCommentBeginEscaped() != null ? function.getCommentEndBracket() + " " + ExpressionDeParser.LINE_SEPARATOR : "").append(")");
    }
  }
  if (function.isEscaped()) {
    buffer.append(function.getCommentEndEscaped() != null ? function.getCommentEndEscaped() + " " + ExpressionDeParser.LINE_SEPARATOR : "").append("}");
  }
}

代码示例来源：origin: com.eas.platypus/platypus-js-sql-parser

final public Function Function() throws ParseException {Function retval = new Function();
    String funcName = null;
    String tmp = null;
  case ESCAPEDLITEARL:{
   tk = jj_consume_token(ESCAPEDLITEARL);
retval.setEscaped(true);
     if (tk.specialToken != null) {
   retval.setCommentBeginEscaped(tk.specialToken.image);
   funcName = RelObjectName();
if (token.specialToken != null) {
     retval.setCommentName(token.specialToken.image);
funcName = "REPLACE";
         if (tk.specialToken != null) {
     retval.setCommentName(tk.specialToken.image);
    retval.setCommentBeginBracket(tk.specialToken.image);
    case K_DISTINCT:{
     tk = jj_consume_token(K_DISTINCT);
retval.setDistinct(true);
        if (tk.specialToken != null) {
       retval.setCommentDistinct(tk.specialToken.image);
retval.setAllColumns(true);
      if (tk.specialToken != null) {
       retval.setCommentAll(tk.specialToken.image);

代码示例来源：origin: diennea/herddb

@Override
public void visit(Function function) {
  function.setName(function.getName().toLowerCase());
  if (function.getParameters() != null) {
    function.getParameters().accept(this);
  }
}

代码示例来源：origin: JSQLParser/JSqlParser

@Override
public void visit(Function function) {
  ExpressionList exprList = function.getParameters();
  if (exprList != null) {
    visit(exprList);
  }
}

代码示例来源：origin: pagehelper/Mybatis-PageHelper

Expression expression = ((SelectExpressionItem) item).getExpression();
if (expression instanceof Function) {
  String name = ((Function) expression).getName();
  if (name != null) {
    String NAME = name.toUpperCase();

代码示例来源：origin: io.github.itfinally/mybatis-paging

private List<SelectItem> createCountFunction() {
  SelectExpressionItem selectExpression = new SelectExpressionItem();
  Function counter = new Function();
  counter.setName( "count" );
  counter.setAllColumns( true );
  selectExpression.setExpression( counter );
  return Lists.<SelectItem>newArrayList( selectExpression );
}

代码示例来源：origin: org.opencadc/cadc-adql

ExpressionList exprList = f.getParameters();
ExpressionList implExprList = convertToImplementation(exprList);
f.setParameters(implExprList);
implExpr = convertToImplementation(f);

代码示例来源：origin: JSQLParser/JSqlParser

if(parameters != null){
    params = parameters.toString();
    if (isDistinct()) {
      params = params.replaceFirst("\\(", "(DISTINCT ");
    } else if (isAllColumns()) {
      params = params.replaceFirst("\\(", "(ALL ");
    params = namedParameters.toString();
} else if (isAllColumns()) {
  params = "(*)";
} else {

代码示例来源：origin: diennea/herddb

public static Column toAggregatedOutputColumn(String fieldName, Function f) {
  if (f.getName().equalsIgnoreCase(BuiltinFunctions.COUNT)) {
    return Column.column(fieldName, ColumnTypes.LONG);
  }
  if (f.getName().equalsIgnoreCase(BuiltinFunctions.SUM) && f.getParameters() != null && f.getParameters().getExpressions() != null && f.getParameters().getExpressions().size() == 1) {
    return Column.column(fieldName, ColumnTypes.LONG);
  }
  if (f.getName().equalsIgnoreCase(BuiltinFunctions.MIN) && f.getParameters() != null && f.getParameters().getExpressions() != null && f.getParameters().getExpressions().size() == 1) {
    return Column.column(fieldName, ColumnTypes.LONG);
  }
  if (f.getName().equalsIgnoreCase(BuiltinFunctions.MAX) && f.getParameters() != null && f.getParameters().getExpressions() != null && f.getParameters().getExpressions().size() == 1) {
    return Column.column(fieldName, ColumnTypes.LONG);
  }
  return null;
}

代码示例来源：origin: org.opencadc/cadc-adql

public Lat(Function adqlFunction)
{
  super();
  Function latFunction = new Function();
  latFunction.setName("lat");
  latFunction.setParameters(adqlFunction.getParameters());
  List<Expression> expressions = new ArrayList<Expression>();
  expressions.add(latFunction);
  ExpressionList expressionList = new ExpressionList();
  expressionList.setExpressions(expressions);
  setName("degrees");
  setParameters(expressionList);
}

代码示例来源：origin: com.baomidou/mybatis-plus-extension

/**
   * <p>
   * 获取jsqlparser中count的SelectItem
   * </p>
   */
  private static List<SelectItem> countSelectItem() {
    Function function = new Function();
    function.setName("COUNT");
    List<Expression> expressions = new ArrayList<>();
    LongValue longValue = new LongValue(1);
    ExpressionList expressionList = new ExpressionList();
    expressions.add(longValue);
    expressionList.setExpressions(expressions);
    function.setParameters(expressionList);
    List<SelectItem> selectItems = new ArrayList<>();
    SelectExpressionItem selectExpressionItem = new SelectExpressionItem(function);
    selectItems.add(selectExpressionItem);
    return selectItems;
  }
}

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