com.mysema.query.types.Operation.getOperator()方法的使用及代码示例

x33g5p2x  于2022-01-26 转载在 其他  
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本文整理了Java中com.mysema.query.types.Operation.getOperator()方法的一些代码示例，展示了Operation.getOperator()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。Operation.getOperator()方法的具体详情如下：
包路径：com.mysema.query.types.Operation
类名称：Operation
方法名：getOperator

Operation.getOperator介绍

[英]Get the operator symbol for this operation
[中]获取此操作的运算符符号

代码示例

代码示例来源：origin: com.mysema.querydsl/querydsl-lucene

  1. private Path<?> getPath(Expression<?> leftHandSide) {
  2.   if (leftHandSide instanceof Path<?>) {
  3.     return (Path<?>)leftHandSide;
  4.   } else if (leftHandSide instanceof Operation<?>) {
  5.     Operation<?> operation = (Operation<?>) leftHandSide;
  6.     if (operation.getOperator() == Ops.LOWER || operation.getOperator() == Ops.UPPER) {
  7.       return (Path<?>)operation.getArg(0);
  8.     }
  9.   }
  10.   throw new IllegalArgumentException("Unable to transform " + leftHandSide + " to path");
  11. }

代码示例来源：origin: com.mysema.querydsl/querydsl-core

  1. @Override
  2. public Integer visit(Operation<?> expr, Void context) {
  3.   int result = expr.getOperator().hashCode();
  4.   return 31 * result + expr.getArgs().hashCode();
  5. }

代码示例来源：origin: com.mysema.querydsl/querydsl-core

  1. private static ImmutableMap<Expression<?>, Integer> createBindings(List<Expression<?>> exprs) {
  2.   Map<Expression<?>, Integer> map = Maps.newHashMap();
  3.   for (int i = 0; i < exprs.size(); i++) {
  4.     Expression<?> e = exprs.get(i);
  5.     if (e instanceof Operation && ((Operation<?>)e).getOperator() == Ops.ALIAS) {
  6.       map.put(((Operation<?>)e).getArg(1), i);
  7.     }
  8.     map.put(e, i);
  9.   }
  10.   return ImmutableMap.copyOf(map);
  11. }

代码示例来源：origin: com.mysema.rdf/rdfbean-core

  1. private List<Expression<?>> transformList(Expression<?> expr, List<Expression<?>> elements) {
  2.   if (expr instanceof Operation<?> && ((Operation<?>) expr).getOperator() == Ops.LIST) {
  3.     Operation<?> list = (Operation<?>) expr;
  4.     transformList(list.getArg(0), elements);
  5.     elements.add(list.getArg(1));
  6.   } else {
  7.     elements.add(expr);
  8.   }
  9.   return elements;
  10. }

代码示例来源：origin: com.mysema.querydsl/querydsl-core

  1. @Override
  2. public final boolean equals(Object o) {
  3.   if (o == this) {
  4.     return true;
  5.   } else if (o instanceof Operation<?>) {
  6.     Operation<?> op = (Operation<?>)o;
  7.     return op.getOperator() == operator
  8.       && op.getArgs().equals(args)
  9.       && op.getType().equals(getType());
  10.   } else {
  11.     return false;
  12.   }
  13. }

代码示例来源：origin: com.mysema.querydsl/querydsl-core

  1. public GroupImpl(List<GroupExpression<?, ?>> columnDefinitions,  List<QPair<?, ?>> maps) {
  2.   this.groupExpressions = columnDefinitions;
  3.   this.maps = maps;
  4.   for (int i=0; i < columnDefinitions.size(); i++) {
  5.     GroupExpression<?, ?> coldef = columnDefinitions.get(i);
  6.     GroupCollector<?,?> collector = groupCollectorMap.get(coldef.getExpression());
  7.     if (collector == null) {
  8.       collector = coldef.createGroupCollector();
  9.       Expression<?> coldefExpr = coldef.getExpression();
  10.       groupCollectorMap.put(coldefExpr, collector);
  11.       if (coldefExpr instanceof Operation && ((Operation)coldefExpr).getOperator() == Ops.ALIAS) {
  12.         groupCollectorMap.put(((Operation)coldefExpr).getArg(1), collector);
  13.       }
  14.     }
  15.     groupCollectors.add(collector);
  16.   }
  17. }

代码示例来源：origin: com.mysema.querydsl/querydsl-collections

  1. private List<?> project(QueryMetadata metadata, List<Expression<?>> sources, List<?> list) {
  2.   Expression<?> projection = metadata.getProjection().get(0);
  3.   Operator<?> aggregator = null;
  4.   if (projection instanceof Operation && Ops.aggOps.contains(((Operation)projection).getOperator())) {
  5.     Operation<?> aggregation = (Operation<?>)projection;
  6.     aggregator = aggregation.getOperator();
  7.     projection = aggregation.getArg(0);
  8.   }
  9.   Evaluator projectionEvaluator = evaluatorFactory.create(metadata, sources, projection);
  10.   EvaluatorFunction transformer = new EvaluatorFunction(projectionEvaluator);
  11.   List target = new ArrayList();
  12.   Iterators.addAll(target, Iterators.transform(list.iterator(), transformer));
  13.   if (aggregator != null) {
  14.     return ImmutableList.of(CollQueryFunctions.aggregate(target, projection, aggregator));
  15.   } else {
  16.     return target;
  17.   }
  18. }

代码示例来源：origin: com.mysema.querydsl/querydsl-core

  1. AbstractGroupByTransformer(Expression<K> key, Expression<?>... expressions) {
  2.   List<Expression<?>> projection = new ArrayList<Expression<?>>(expressions.length);
  3.   groupExpressions.add(new GOne<K>(key));
  4.   projection.add(key);
  5.   for (Expression<?> expr : expressions) {
  6.     if (expr instanceof GroupExpression<?,?>) {
  7.       GroupExpression<?,?> groupExpr = (GroupExpression<?,?>)expr;
  8.       groupExpressions.add(groupExpr);
  9.       Expression<?> colExpression = groupExpr.getExpression();
  10.       if (colExpression instanceof Operation && ((Operation)colExpression).getOperator() == Ops.ALIAS) {
  11.         projection.add(((Operation)colExpression).getArg(0));
  12.       } else {
  13.         projection.add(colExpression);
  14.       }
  15.       if (groupExpr instanceof GMap) {
  16.         maps.add((QPair<?, ?>) colExpression);
  17.       }
  18.     } else {
  19.       groupExpressions.add(new GOne(expr));
  20.       projection.add(expr);
  21.     }
  22.   }
  23.   this.expressions = projection.toArray(new Expression[projection.size()]);
  24. }

代码示例来源：origin: com.mysema.querydsl/querydsl-core

  1. @Override
  2. public Expression<?> visit(Operation<?> expr, @Nullable Void context) {
  3.   ImmutableList<Expression<?>> args = visit(expr.getArgs());
  4.   if (args.equals(expr.getArgs())) {
  5.     return expr;
  6.   } else if (expr instanceof Predicate) {
  7.     return new PredicateOperation((Operator)expr.getOperator(), args);
  8.   } else {
  9.     return new OperationImpl(expr.getType(), expr.getOperator(), args);
  10.   }
  11. }

代码示例来源：origin: com.mysema.querydsl/querydsl-core

  1. @Override
  2. public Void visit(Operation<?> expr, Void context) {
  3.   visitOperation(expr.getType(), expr.getOperator(), expr.getArgs());
  4.   return null;
  5. }

代码示例来源：origin: com.mysema.querydsl/querydsl-hql

  1. @SuppressWarnings("unchecked")
  2. private <T> Expr<?> regexToLike(Operation<T> operation) {
  3.   List<Expr<?>> args = new ArrayList<Expr<?>>();
  4.   for (Expr<?> arg : operation.getArgs()){
  5.     if (!arg.getType().equals(String.class)){
  6.       args.add(arg);
  7.     }else if (arg instanceof Constant){
  8.       args.add(regexToLike(arg.toString()));
  9.     }else if (arg instanceof Operation){
  10.       args.add(regexToLike((Operation)arg));
  11.     }else{
  12.       args.add(arg);
  13.     }
  14.   }
  15.   return OSimple.create(
  16.       operation.getType(),
  17.       operation.getOperator(),
  18.       args.<Expr<?>>toArray(new Expr[args.size()]));
  19. }

代码示例来源：origin: com.mysema.querydsl/querydsl-lucene

  1. /**
  2.  * template method
  3.  *
  4.  * @param leftHandSide
  5.  * @param rightHandSide
  6.  * @return
  7.  */
  8. protected String[] convert(Path<?> leftHandSide, Expression<?> rightHandSide, QueryMetadata metadata) {
  9.   if (rightHandSide instanceof Operation) {
  10.     Operation<?> operation = (Operation<?>)rightHandSide;
  11.     if (operation.getOperator() == LuceneExpressions.PHRASE) {
  12.       return Iterables.toArray(WS_SPLITTER.split(operation.getArg(0).toString()), String.class);
  13.     } else if (operation.getOperator() == LuceneExpressions.TERM) {
  14.       return new String[] { operation.getArg(0).toString() };
  15.     } else {
  16.       throw new IllegalArgumentException(rightHandSide.toString());
  17.     }
  18.   } else if (rightHandSide instanceof ParamExpression<?>) {
  19.     Object value = metadata.getParams().get(rightHandSide);
  20.     if (value == null) {
  21.       throw new ParamNotSetException((ParamExpression<?>) rightHandSide);
  22.     }
  23.     return convert(leftHandSide, value);
  24.   } else if (rightHandSide instanceof Constant<?>) {
  25.     return convert(leftHandSide, ((Constant<?>)rightHandSide).getConstant());
  26.   } else {
  27.     throw new IllegalArgumentException(rightHandSide.toString());
  28.   }
  29. }

代码示例来源：origin: com.mysema.querydsl/querydsl-core

  1. @Override
  2. public String visit(Operation<?> o, Templates templates) {
  3.   final Template template = templates.getTemplate(o.getOperator());
  4.   if (template != null) {
  5.     final int precedence = templates.getPrecedence(o.getOperator());
  6.     final StringBuilder builder = new StringBuilder();
  7.     for (Template.Element element : template.getElements()) {
  8.       final Object rv = element.convert(o.getArgs());
  9.       if (rv instanceof Expression) {
  10.         if (precedence > -1 && rv instanceof Operation) {
  11.           if (precedence < templates.getPrecedence(((Operation<?>)rv).getOperator())) {
  12.             builder.append("(");
  13.             builder.append(((Expression)rv).accept(this, templates));
  14.             builder.append(")");
  15.             continue;
  16.           }
  17.         }
  18.         builder.append(((Expression)rv).accept(this, templates));
  19.       } else {
  20.         builder.append(rv.toString());
  21.       }
  22.     }
  23.     return builder.toString();
  24.   } else {
  25.     return "unknown operation with operator " + o.getOperator().getId() + " and args " + o.getArgs();
  26.   }
  27. }

代码示例来源：origin: com.mysema.querydsl/querydsl-core

  1. @SuppressWarnings("unchecked")
  2. @Override
  3. public Expression<?> visit(Operation<?> expr, Context context) {
  4.   final Expression<?>[] args = new Expression<?>[expr.getArgs().size()];        
  5.   for (int i = 0; i < args.length; i++) {
  6.     Context c = new Context();
  7.     args[i] = expr.getArg(i).accept(this, c);
  8.     context.add(c);
  9.   }
  10.   if (context.replace) {            
  11.     if (expr.getType().equals(Boolean.class)) {
  12.       Predicate predicate = new PredicateOperation((Operator)expr.getOperator(), ImmutableList.copyOf(args));
  13.       return !context.paths.isEmpty() ? exists(context, predicate) : predicate;           
  14.     } else {
  15.       return new OperationImpl(expr.getType(), expr.getOperator(), ImmutableList.copyOf(args));    
  16.     }    
  17.   } else {
  18.     return expr;
  19.   }        
  20. }

代码示例来源：origin: com.mysema.querydsl/querydsl-core

  1. @SuppressWarnings("rawtypes")
  2. @Override
  3. public Expression<?> visit(Operation<?> expr, Context context) {
  4.   Expression<?>[] args = new Expression<?>[expr.getArgs().size()];
  5.   for (int i = 0; i < args.length; i++) {
  6.     Context c = new Context();
  7.     args[i] = expr.getArg(i).accept(this, c);
  8.     context.add(c);
  9.   }
  10.   if (context.replace) {
  11.     if (expr.getType().equals(Boolean.class)) {
  12.       Predicate predicate = new PredicateOperation((Operator<Boolean>)expr.getOperator(), ImmutableList.copyOf(args));
  13.       return !context.paths.isEmpty() ? exists(context, predicate) : predicate;
  14.     } else {
  15.       return new OperationImpl(expr.getType(), expr.getOperator(), ImmutableList.copyOf(args));
  16.     }
  17.   } else {
  18.     return expr;
  19.   }
  20. }

代码示例来源：origin: com.mysema.querydsl/querydsl-core

  1. @Override
  2. public BooleanExpression exists() {
  3.   if (queryMixin.getMetadata().getJoins().isEmpty()) {
  4.     throw new IllegalArgumentException("No sources given");
  5.   }
  6.   Expression<?> expr = queryMixin.getMetadata().getJoins().get(0).getTarget();
  7.   if (expr instanceof Operation && ((Operation)expr).getOperator() == Ops.ALIAS) {
  8.     expr = ((Operation)expr).getArg(1);
  9.   }
  10.   return unique(expr).exists();
  11. }

代码示例来源：origin: com.mysema.querydsl/querydsl-core

  1. @Override
  2. public Set<Expression<?>> visit(Operation<?> expr, Set<Expression<?>> known) {
  3.   if (expr.getOperator() == Ops.ALIAS) {
  4.     known = add(known, expr.getArg(1));
  5.   }
  6.   for (Expression<?> arg : expr.getArgs()) {
  7.     known = arg.accept(this, known);
  8.   }
  9.   return known;
  10. }

代码示例来源：origin: com.mysema.querydsl/querydsl-jdo

  1. @SuppressWarnings("unchecked")
  2. @Override
  3. public NumberSubQuery<Long> count() {
  4.   Expression<?> target = queryMixin.getMetadata().getJoins().get(0).getTarget();
  5.   if (target instanceof Operation && ((Operation)target).getOperator() == Ops.ALIAS) {
  6.     target = ((Operation)target).getArg(1);
  7.   }
  8.   return unique(NumberOperation.create(Long.class, Ops.AggOps.COUNT_AGG, target));  
  9. }

代码示例来源：origin: com.mysema.querydsl/querydsl-core

  1. private static ImmutableMap<String,Expression<?>> createBindings(Expression<?>... args) {
  2.   ImmutableMap.Builder<String, Expression<?>> rv = ImmutableMap.builder();
  3.   for (Expression<?> expr : args) {
  4.     if (expr instanceof Path<?>) {
  5.       Path<?> path = (Path<?>)expr;
  6.       rv.put(path.getMetadata().getName(), expr);
  7.     } else if (expr instanceof Operation<?>) {
  8.       Operation<?> operation = (Operation<?>)expr;
  9.       if (operation.getOperator() == Ops.ALIAS && operation.getArg(1) instanceof Path<?>) {
  10.         Path<?> path = (Path<?>)operation.getArg(1);
  11.         if (isCompoundExpression(operation.getArg(0))) {
  12.           rv.put(path.getMetadata().getName(), operation.getArg(0));
  13.         } else {
  14.           rv.put(path.getMetadata().getName(), operation);
  15.         }
  16.       } else {
  17.         throw new IllegalArgumentException("Unsupported expression " + expr);
  18.       }
  19.     } else {
  20.       throw new IllegalArgumentException("Unsupported expression " + expr);
  21.     }
  22.   }
  23.   return rv.build();
  24. }

代码示例来源：origin: com.mysema.rdf/rdfbean-core

  1. @SuppressWarnings("unchecked")
  2. private Operation<?> transformPathEqNeConstant(Operation<?> operation) {
  3.   Path<?> path = (Path<?>) operation.getArg(0);
  4.   Constant<?> constant = (Constant<?>) operation.getArg(1);
  5.   MappedPath mappedPath = getMappedPath(path);
  6.   // id property
  7.   if (path.getMetadata().getPathType() == PathType.PROPERTY
  8.       && constant.getType().equals(String.class)
  9.       && mappedPath.getPredicatePath().isEmpty()) {
  10.     operation = PredicateOperation.create((Operator) operation.getOperator(),
  11.         path,
  12.         new ConstantImpl<ID>(session.getId(new LID(constant.toString()))));
  13.     // localized property
  14.   } else if (mappedPath.getMappedProperty().isLocalized()) {
  15.     Locale locale;
  16.     if (path.getMetadata().getPathType() == PathType.PROPERTY) {
  17.       locale = session.getCurrentLocale();
  18.     } else {
  19.       locale = (Locale) path.getMetadata().getElement();
  20.     }
  21.     operation = PredicateOperation.create((Operator) operation.getOperator(),
  22.         path,
  23.         new ConstantImpl<LIT>(new LIT(constant.toString(), locale)));
  24.   }
  25.   return operation;
  26. }

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