net.sf.jsqlparser.expression.Function.getName()方法的使用及代码示例

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.getName()方法的一些代码示例，展示了Function.getName()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.getName()方法的具体详情如下：
包路径：net.sf.jsqlparser.expression.Function
类名称：Function
方法名：getName

Function.getName介绍

[英]The name of he function, i.e. "MAX"
[中]函数的名称，即“MAX”

代码示例

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: JSQLParser/JSqlParser

buffer.append(function.getName());
if (function.isAllColumns() && function.getParameters() == null) {
  buffer.append("(*)");

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: 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: vincentrussell/sql-to-mongo-db-query-converter

public static boolean isSpecialtyFunction(Expression incomingExpression) {
  if (incomingExpression == null) {
    return false;
  }
  if (Function.class.isInstance(incomingExpression) && containsIgnoreCase(SPECIALTY_FUNCTIONS, ((Function)incomingExpression).getName())) {
    return true;
  }
  return false;
}

代码示例来源：origin: diennea/herddb

private boolean isAggregateFunction(Expression expression) throws StatementExecutionException {
  if (!(expression instanceof Function)) {
    return false;
  }
  Function function = (Function) expression;
  String name = function.getName().toLowerCase();
  if (BuiltinFunctions.isAggregateFunction(function.getName())) {
    return true;
  }
  if (BuiltinFunctions.isScalarFunction(function.getName())) {
    return false;
  }
  throw new StatementExecutionException("unsupported function " + name);
}

代码示例来源：origin: org.opencadc/cadc-adql

/**
 * Find the FunctionDesc for a given Function.
 *
 * @param tapSchema
 * @param function
 * @return FunctionDesc
 */
public static FunctionDesc findFunctionDesc(TapSchema tapSchema, Function function)
{
  if (function == null || function.getName() == null)
    return null;
  for (FunctionDesc functionDesc : tapSchema.getFunctionDescs())
  {
    log.debug("check: " + function.getName() + " vs " + functionDesc.getName());
    if (function.getName().equalsIgnoreCase(functionDesc.getName()))
      return functionDesc;
  }
  return null;
}

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

@Override
public void visit(net.sf.jsqlparser.expression.Function expression) {
  // do not use ImmutableCollectors.toList because this cannot be done concurrently
  ImmutableList<Term> terms = (expression.getParameters() != null)
      ? ImmutableList.<Term>builder()
      .addAll(expression.getParameters().getExpressions().stream()
          .map(t -> termVisitor.getTerm(t)).iterator())
      .build()
      : ImmutableList.of();
  BiFunction<ImmutableList<Term>, net.sf.jsqlparser.expression.Function, Function> function
      = BOOLEAN_FUNCTIONS.get(expression.getName().toUpperCase());
  if (function == null)
    throw new UnsupportedSelectQueryRuntimeException("Unsupported SQL function", expression);
  result = ImmutableList.of(function.apply(terms, expression));
}

代码示例来源：origin: ontop/ontop

@Override
public void visit(net.sf.jsqlparser.expression.Function expression) {
  // do not use ImmutableCollectors.toList because this cannot be done concurrently
  ImmutableList<Term> terms = (expression.getParameters() != null)
      ? ImmutableList.<Term>builder()
      .addAll(expression.getParameters().getExpressions().stream()
          .map(t -> termVisitor.getTerm(t)).iterator())
      .build()
      : ImmutableList.of();
  BiFunction<ImmutableList<Term>, net.sf.jsqlparser.expression.Function, Function> function
      = BOOLEAN_FUNCTIONS.get(expression.getName().toUpperCase());
  if (function == null)
    throw new UnsupportedSelectQueryRuntimeException("Unsupported SQL function", expression);
  result = ImmutableList.of(function.apply(terms, expression));
}

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

@Override
public void visit(net.sf.jsqlparser.expression.Function expression) {
  // do not use ImmutableCollectors.toList because this cannot be done concurrently
  ImmutableList<Term> terms = (expression.getParameters() != null)
      ? ImmutableList.<Term>builder()
      .addAll(expression.getParameters().getExpressions().stream()
          .map(t -> getTerm(t)).iterator())
      .build()
      : ImmutableList.of();
  BiFunction<ImmutableList<Term>, net.sf.jsqlparser.expression.Function, Function> function
      = FUNCTIONS.get(expression.getName().toUpperCase());
  if (function == null)
    throw new UnsupportedSelectQueryRuntimeException("Unsupported SQL function", expression);
  result = function.apply(terms, expression);
}

代码示例来源：origin: ontop/ontop

@Override
public void visit(net.sf.jsqlparser.expression.Function expression) {
  // do not use ImmutableCollectors.toList because this cannot be done concurrently
  ImmutableList<Term> terms = (expression.getParameters() != null)
      ? ImmutableList.<Term>builder()
      .addAll(expression.getParameters().getExpressions().stream()
          .map(t -> getTerm(t)).iterator())
      .build()
      : ImmutableList.of();
  BiFunction<ImmutableList<Term>, net.sf.jsqlparser.expression.Function, Function> function
      = FUNCTIONS.get(expression.getName().toUpperCase());
  if (function == null)
    throw new UnsupportedSelectQueryRuntimeException("Unsupported SQL function", expression);
  result = function.apply(terms, expression);
}

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 Expression convertToImplementation(Function func)
{
  Expression implExpr = super.convertToImplementation(func);
  if (implExpr == func) // not handled
  {
    if (RANGE_S2D.equalsIgnoreCase(func.getName()))
    {
      ExpressionList exprList = func.getParameters();
      if (exprList == null)
        throw new IllegalArgumentException("RANGE_S2D requires long1, long2, lat1, lat2");
      List<Expression> expressions = exprList.getExpressions();
      if (expressions.size() != 4)
        throw new IllegalArgumentException("RANGE_S2D requires long1, long2, lat1, lat2");
      implExpr = handleRangeS2D(expressions.get(0), expressions.get(1), expressions.get(2), expressions.get(3));
    }
  }
  return implExpr;
}

代码示例来源：origin: org.opencadc/cadc-adql

@Override
protected Expression convertToImplementation(Function func)
{
  if (!func.getName().equalsIgnoreCase("match"))
    return func;
  
  List<Expression> exprs = func.getParameters().getExpressions();
  if (exprs.size() == 2)
  {
    Expression e1 = exprs.get(0);
    Expression e2 = exprs.get(1);
    if (e1 instanceof Column && e2 instanceof StringValue)
    {
      Column col = (Column) e1;
      String query = ((StringValue) e2).getValue();
      return new TextSearchMatch(col, query);
    }
  }
  throw new IllegalArgumentException("invalid args to match: expected match(<column>,<string>)");
}

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

@Override
public void visit(Function function) {
  switch (function.getName().toLowerCase()) {
    case "regexp_like" :
    case "regexp_replace" :
    case "replace" :
    case "concat" :
    case "substr" : 
      for (Expression ex :function.getParameters().getExpressions()) 
        ex.accept(this);
      break;
    default:
      unsupported(function);
      break;
  }
}

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: 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: it.unibz.inf.ontop/ontop-obdalib-core

@Override
public void visit(Function function) {
  switch (function.getName().toLowerCase()) {
    case "regexp_like" :
    case "regexp_replace" :
    case "replace" :
    case "concat" :
    //case "substr" : 
      for (Expression ex :function.getParameters().getExpressions()) 
        ex.accept(this);
      break;
    default:
      unsupported(function);
  }
  
}

代码示例来源：origin: diennea/herddb

public static AggregatedColumnCalculator getColumnCalculator(Function f, String fieldName,
  StatementEvaluationContext context) throws StatementExecutionException {
  String functionName = f.getName();
  CompiledSQLExpression firstParam = f.getParameters() == null || f.getParameters().getExpressions() == null || f.getParameters().getExpressions().isEmpty() ? null
    : SQLExpressionCompiler.compileExpression(null, f.getParameters().getExpressions().get(0));
  return getColumnCalculator(functionName, fieldName, firstParam, context);
}

代码示例来源：origin: org.geotools/gt-arcsde

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;
}

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