org.teiid.language.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org.teiid.language.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：org.teiid.language.Function
类名称：Function
方法名：getName

Function.getName介绍

[英]Get name of the function
[中]获取函数的名称

代码示例

代码示例来源：origin: org.teiid.connectors/translator-jdbc

@Override
protected boolean isNonAsciiFunction(Function f) {
  return f.getName().equalsIgnoreCase(TO_NCHAR)
         || (f.getType() == TypeFacility.RUNTIME_TYPES.CHAR && f.getName().equalsIgnoreCase(SourceSystemFunctions.CONVERT));
}

代码示例来源：origin: org.teiid.connectors/translator-jdbc

@Override
  public List<?> translate(Function function) {
    if (this.name != null) {
      function.setName(this.name);
    }
    return Arrays.asList(function.getName());
  }
}

代码示例来源：origin: org.teiid.connectors/translator-jdbc

private boolean isConvertFunctionWithSimpleExpression(Expression expr) {
  if (expr instanceof Function && ((Function) expr).getName().equals("convert")) {
    Function f = (Function) expr;
    Expression param = f.getParameters().get(0);
    if (param instanceof ColumnReference) {
      return true;
    } else if (param instanceof Literal) {
      return true;
    }
  }
  return false;
}

代码示例来源：origin: org.teiid.connectors/translator-google

@Override
public void visit(Function function) {
  if (function.getName().equalsIgnoreCase(SourceSystemFunctions.DAYOFMONTH)) {
    function.setName("day"); //$NON-NLS-1$
  } else if (function.getName().equalsIgnoreCase(SourceSystemFunctions.UCASE)) {
    function.setName("upper"); //$NON-NLS-1$
  } else if (function.getName().equalsIgnoreCase(SourceSystemFunctions.LCASE)) {
    function.setName("lower"); //$NON-NLS-1$
  } else if (function.getName().equalsIgnoreCase(SourceSystemFunctions.DAYOFWEEK)) {
    function.setName("weekday"); //$NON-NLS-1$
  }
  super.visit(function);
}

代码示例来源：origin: org.teiid.connectors/translator-jdbc

public static boolean isNotNull(Expression expr) {
  if (expr instanceof Literal) {
    Literal literal = (Literal)expr;
    return literal.getValue() != null;
  }
  if (expr instanceof Function) {
    Function function = (Function)expr;
    if (function.getName().equalsIgnoreCase("NVL") || function.getName().equalsIgnoreCase(SourceSystemFunctions.IFNULL)) { //$NON-NLS-1$
      return isNotNull(function.getParameters().get(1));
    }
  }
  return false;
}

代码示例来源：origin: org.teiid.connectors/translator-salesforce

public void parseFunction( Function func ) {
  String functionName = func.getName();
  try {
    if (functionName.equalsIgnoreCase("includes")) { //$NON-NLS-1$
      generateMultiSelect(func, INCLUDES);
    } else if (functionName.equalsIgnoreCase("excludes")) { //$NON-NLS-1$
      generateMultiSelect(func, EXCLUDES);
    }
  } catch (TranslatorException e) {
    exceptions.add(e);
  }
}

代码示例来源：origin: org.teiid.connectors/translator-jdbc

/**
 * Most geospatial functions in HANA are called from the geometry object or an equivalent expression.
 * For example, <geometry-expression>.ST_SRID() or <geometry-expression>.ST_Relate(<geo2>). This method
 * will take the argument(s) to the Teiid spatial function and move the first argument to precede
 * the function name.
 */
public List<?> translate(Function function) {
  List<Expression> params = function.getParameters();
  List<Object> objs = new ArrayList<Object>();
  
  Expression exp1 = params.get(0);
  
  objs.add(exp1+"."+function.getName());
  objs.add("("); //$NON-NLS-1$
  if (params.size()>1){
    objs.add(params.get(1));
  }
  objs.add(")"); //$NON-NLS-1$
  return objs;
}

代码示例来源：origin: org.teiid.connectors/translator-jdbc

public List<?> translate(Function function) {
    List<Expression> args = function.getParameters();
    List<Object> objs = new ArrayList<Object>();
    objs.add("EXTRACT("); //$NON-NLS-1$
    objs.add(FUNCTION_PART_MAP.get(function.getName().toLowerCase()));
    objs.add(Tokens.SPACE);
    objs.add(Reserved.FROM); 
    objs.add(Tokens.SPACE);               
    objs.add(args.get(0));
    objs.add(Tokens.RPAREN);
    //for pg - may not be needed for other dbs
    if (function.getName().toLowerCase().equals(SourceSystemFunctions.DAYOFWEEK)) {
      objs.add(0, Tokens.LPAREN);
      objs.add(" + 1)"); //$NON-NLS-1$
    }
    if (castTarget != null) {
      if (castTarget != null) {
        objs.add(0, "CAST("); //$NON-NLS-1$
      }
      objs.add(" AS "); //$NON-NLS-1$
      objs.add(castTarget);
      objs.add(")"); //$NON-NLS-1$
    }
    return objs;
  }    
}

代码示例来源：origin: org.teiid.connectors/translator-jdbc

@Override
public List<?> translate(Function function) {
  Expression booleanValue = function.getParameters().get(0);
  if (booleanValue instanceof Function) {
    Function nested = (Function)booleanValue;
    if (nested.getName().equalsIgnoreCase("convert") && Number.class.isAssignableFrom(nested.getParameters().get(0).getType())) {  //$NON-NLS-1$
      booleanValue = nested.getParameters().get(0);
    }
  }
  return Arrays.asList("CASE WHEN ", booleanValue, " = '0' THEN 'false' WHEN ", booleanValue, " IS NOT NULL THEN 'true' END");  //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}

代码示例来源：origin: org.teiid.connectors/translator-jpa

@Override
public void visit(Function func) {
  if (visitor.executionFactory.getFunctionModifiers().containsKey(func.getName())) {
    visitor.executionFactory.getFunctionModifiers().get(func.getName()).translate(func);
  }
  super.visit(func);
}

代码示例来源：origin: org.teiid.connectors/translator-jdbc

@Override
  public List<?> translate(Function function) {
    List<Expression> args = function.getParameters();
    ArrayList<Object> target = new ArrayList<Object>();
    if (function.getName().equalsIgnoreCase("left")) { //$NON-NLS-1$
      //substr(string, 1, length)
      target.add("substr("); //$NON-NLS-1$
      target.add(args.get(0));
      target.add(","); //$NON-NLS-1$
      target.add(langFactory.createLiteral(Integer.valueOf(1), TypeFacility.RUNTIME_TYPES.INTEGER));
      target.add(","); //$NON-NLS-1$
      target.add(args.get(1));
      target.add(")"); //$NON-NLS-1$
    } else if (function.getName().equalsIgnoreCase("right")) { //$NON-NLS-1$
      //substr(case_size, character_length(case_size) -4) 
      target.add("substr("); //$NON-NLS-1$
      target.add(args.get(0));
      
      target.add(",(character_length("); //$NON-NLS-1$
      target.add(args.get(0));
      target.add(")-"); //$NON-NLS-1$
      target.add(args.get(1));
      target.add("+1))"); //$NON-NLS-1$ // offset for 1 based index
    }
    return target;
  }
}

代码示例来源：origin: org.teiid.connectors/translator-jdbc

/**
 * If either of the first two parameters are a Literal String, then we need to put the literal itself in the SQL
 * to be passed to Oracle, without the tick marks
 */
public List<?> translate(Function function) {
  List<Expression> params = function.getParameters();
  List<Object> objs = new ArrayList<Object>();
  objs.add(function.getName());
  objs.add("("); //$NON-NLS-1$
  addParamWithConversion(objs, params.get(0));
  objs.add(", "); //$NON-NLS-1$
  addParamWithConversion(objs, params.get(1));
  for (int i = 2; i < params.size(); i++) {
    objs.add(", "); //$NON-NLS-1$
    objs.add(params.get(i));
  }
  objs.add(")"); //$NON-NLS-1$
  return objs;
}

代码示例来源：origin: org.teiid.connectors/translator-jdbc

@Override
public List<?> translate(Function function) {
  Expression booleanValue = function.getParameters().get(0);
  if (booleanValue instanceof Function) {
    Function nested = (Function)booleanValue;
    if (nested.getName().equalsIgnoreCase("convert") && Number.class.isAssignableFrom(nested.getParameters().get(0).getType())) {  //$NON-NLS-1$
      booleanValue = nested.getParameters().get(0);
    }
  }
  return Arrays.asList("(CASE WHEN ", booleanValue, " IN ( '0', 'FALSE') THEN 0 WHEN ", booleanValue, " IS NOT NULL THEN 1 END)"); //$NON-NLS-1$ //$NON-NLS-2$ //$NON-NLS-3$
}

代码示例来源：origin: org.teiid.connectors/translator-simpledb

@Override
public void visit(Function obj) {
  String name = obj.getName();
  List<Expression> args = obj.getParameters();
  if(name.equalsIgnoreCase(SimpleDBExecutionFactory.INTERSECTION) || name.equalsIgnoreCase(SimpleDBExecutionFactory.SIMPLEDB+"."+SimpleDBExecutionFactory.INTERSECTION)) { //$NON-NLS-1$
    append(args.get(0));
    buffer.append(Tokens.SPACE).append(Tokens.EQ).append(Tokens.SPACE);
    for (int i = 1; i < args.size(); i++) {
      append(args.get(i));
      if (i < args.size()-1) {
        buffer.append(Tokens.SPACE).append(SimpleDBExecutionFactory.INTERSECTION).append(Tokens.SPACE);
        buffer.append(SimpleDBMetadataProcessor.getQuotedName(this.previousColumn));
        buffer.append(Tokens.SPACE).append(Tokens.EQ).append(Tokens.SPACE);
      }
    }
    this.skipCompare = true;
  }
  else {
    super.visit(obj);
  }
}

代码示例来源：origin: org.teiid.connectors/translator-jdbc

@Override
  public List<?> translate(Function function) {
    List<Expression> args = function.getParameters();
    Function func = null;
    
    if (function.getName().equalsIgnoreCase("left")) { //$NON-NLS-1$
      func = langFactory.createFunction(SourceSystemFunctions.SUBSTRING,  
        Arrays.asList(
          args.get(0), 
          langFactory.createLiteral(Integer.valueOf(1), TypeFacility.RUNTIME_TYPES.INTEGER),
          args.get(1)),
          String.class);   
    } else if (function.getName().equalsIgnoreCase("right")) { //$NON-NLS-1$
      Function negIndex = langFactory.createFunction("*",  //$NON-NLS-1$
        Arrays.asList(langFactory.createLiteral(Integer.valueOf(-1), TypeFacility.RUNTIME_TYPES.INTEGER), args.get(1)),
        Integer.class);
              
      func = langFactory.createFunction(SourceSystemFunctions.SUBSTRING,  
        Arrays.asList(
          args.get(0), 
          negIndex),
          String.class);      
    }

    return Arrays.asList(func);    
  }
}

代码示例来源：origin: org.teiid.connectors/translator-mongodb

private BasicDBObject handleStringFunction(String functionName, Function function) {
  List<Expression> args = function.getParameters();
  BasicDBObject func = null;
  append(args.get(0));
  Object column = this.onGoingExpression.pop();
  if (args.size() == 1) {
    func = new BasicDBObject(function.getName(), column);
  } 
  else {
    BasicDBList params = new BasicDBList();
    params.add(column);
    for (int i = 1; i < args.size(); i++) {
      append(args.get(i));
      Object param = this.onGoingExpression.pop();
      params.add(param);
    }
    func = new BasicDBObject(function.getName(), params); 
  }
  BasicDBObject ne = buildNE(column.toString(), null);
  return buildCondition(ne, func, null);
}

代码示例来源：origin: org.teiid.connectors/translator-odata

public void visitComparisonWithBooleanFunction(Comparison obj) {
  boolean truthiness = SQLConstants.Reserved.TRUE.equals(obj.getRightExpression().toString());
  boolean isNot = !truthiness;
  switch(obj.getOperator()) {
  case EQ:
    break;
  case NE:
    isNot = !isNot;
    break;
  default:
    this.exceptions.add(new TranslatorException(
        ODataPlugin.Util.gs(ODataPlugin.Event.TEIID17018, ((Function)obj.getLeftExpression()).getName())));
  }
  if(isNot) {
    // can't use a Not object, because it requires a Condition inside,
    // and we don't have support for generic unary conditions
    this.filter.append(NOT)
      .append(Tokens.SPACE)
      .append(Tokens.LPAREN);
    append(obj.getLeftExpression());
    this.filter.append(Tokens.RPAREN);
  } else {
    append(obj.getLeftExpression());
  }
}

代码示例来源：origin: teiid/teiid

@Test public void testGetName() throws Exception {
  assertEquals("testName", example("testName").getName()); //$NON-NLS-1$ //$NON-NLS-2$
}

代码示例来源：origin: org.teiid.connectors/translator-mongodb

private DBObject buildGeoFunction(Function function) throws TranslatorException{
  List<Expression> args = function.getParameters();
  // Column Name
  int paramIndex = 0;
  ColumnDetail column = getExpressionAlias(args.get(paramIndex++));
  BasicDBObjectBuilder builder = BasicDBObjectBuilder.start();
  builder.push(column.documentFieldName);
  builder.push(function.getName());
  append(args.get(paramIndex++));
  Object object = this.onGoingExpression.pop();
  if (object instanceof GeometryType) {
    convertGeometryToJson(builder, (GeometryType)object);
  } else {
    // Type: Point, LineString, Polygon..
    SpatialType type = SpatialType.valueOf((String)object);
    
    append(args.get(paramIndex++));
    builder.push("$geometry");//$NON-NLS-1$
    builder.add("type", type.name());//$NON-NLS-1$
    // walk the co-ordinates
    BasicDBList coordinates = new BasicDBList();
    coordinates.add(this.onGoingExpression.pop());
    builder.add("coordinates", coordinates); //$NON-NLS-1$
  }
  return builder.get();
}

代码示例来源：origin: org.teiid.connectors/translator-jdbc

@Override
public void visit(Comparison obj) {
  if (isFixedChar(obj.getLeftExpression())) {
    if (obj.getRightExpression() instanceof Literal) {
      Literal l = (Literal)obj.getRightExpression();
      l.setType(FixedCharType.class);
    } else if (obj.getRightExpression() instanceof Parameter) {
      Parameter p = (Parameter)obj.getRightExpression();
      p.setType(FixedCharType.class);
    }
  }
  if (obj.getLeftExpression().getType() == TypeFacility.RUNTIME_TYPES.BOOLEAN 
      && (obj.getLeftExpression() instanceof Function)
      && obj.getRightExpression() instanceof Literal) {
    Function f = (Function)obj.getLeftExpression();
    if (STRING_BOOLEAN_FUNCTIONS.contains(f.getName())) {
      Boolean b = (Boolean)((Literal)obj.getRightExpression()).getValue();
      obj.setRightExpression(new Literal(b!=null?(b?"TRUE":"FALSE"):null, TypeFacility.RUNTIME_TYPES.STRING)); //$NON-NLS-1$ //$NON-NLS-2$
    }
  }
  super.visit(obj);
}

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