com.mysema.query.types.Operation类的使用及代码示例

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类的一些代码示例，展示了Operation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。Operation类的具体详情如下：
包路径：com.mysema.query.types.Operation
类名称：Operation

Operation介绍

[英]Operation represents an operation with operator and arguments
[中]操作表示带有运算符和参数的操作

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 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-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. @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-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.rdf/rdfbean-core

  1. @Override
  2.   public boolean apply(Bindings bindings) {
  3.     return Objects.equal(
  4.         expr.getArg(0).accept(QueryRDFVisitor.this, bindings),
  5.         expr.getArg(1).accept(QueryRDFVisitor.this, bindings));
  6.   }
  7. };

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

  1. private void verifyArguments(Operation<?> operation) {
  2.   List<Expression<?>> arguments = operation.getArgs();
  3.   for (int i = 1; i < arguments.size(); ++i) {
  4.     if (!(arguments.get(i) instanceof Constant<?>)
  5.         && !(arguments.get(i) instanceof ParamExpression<?>)
  6.         && !(arguments.get(i) instanceof PhraseElement)
  7.         && !(arguments.get(i) instanceof TermElement)) {
  8.       throw new IllegalArgumentException("operand was of unsupported type "
  9.           + arguments.get(i).getClass().getName());
  10.     }
  11.   }
  12. }

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

  1. final Expression<?> expr = (Expression<?>) rv;
  2. if (precedence > -1 && expr instanceof Operation) {
  3.   Operator op = ((Operation<?>) expr).getOperator();
  4.   int opPrecedence = templates.getPrecedence(op);
  5.   if (precedence < opPrecedence) {

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

  1. private Predicate<Bindings> createBoundPredicate(final Operation<?> expr, final Operator<?> op) {
  2.   final String key = getKey(expr.getArg(0));
  3.   return new Predicate<Bindings>() {
  4.     @Override
  5.     public boolean apply(Bindings bindings) {
  6.       boolean rv = bindings.get(key) != null;
  7.       return op == Ops.IS_NOT_NULL ? rv : !rv;
  8.     }
  9.   };
  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. @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. @Override
  2. public Void visit(Operation<?> expr, List<Path<?>> paths) {
  3.   visit(expr.getArgs(), paths);
  4.   return null;
  5. }

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.rdf/rdfbean-sesame

  1. @SuppressWarnings("unchecked")
  2. @Override
  3. public ValueExpr visit(Operation<?> expr, QueryMetadata md) {
  4.   Operator<?> op = expr.getOperator();
  5.   if (op == Ops.AND){
  6.     return new And(toValue(expr.getArg(0), md), toValue(expr.getArg(1), md));
  7.   }else if (op == Ops.OR){
  8.     return new Or(toValue(expr.getArg(0), md), toValue(expr.getArg(1), md));
  9.   }else if (op == Ops.IN){
  10.     for (Object o : ((Constant<Collection>)expr.getArg(1)).getConstant()) {
  11.       builder.or(ExpressionUtils.eqConst((Expression)expr.getArg(0), o));
  12.     return new Not(toValue(expr.getArg(0), md));
  13.   }else if (COMPARE_OPS.containsKey(op)){
  14.     if (expr.getArg(1) instanceof SubQueryExpression<?>){
  15.       return new CompareAll(toValue(expr.getArg(0), md), toTuple(expr.getArg(1), md), COMPARE_OPS.get(op));
  16.     }else{
  17.       return new Compare(toValue(expr.getArg(0), md), toValue(expr.getArg(1), md), COMPARE_OPS.get(op));
  18.     return new MathExpr(toValue(expr.getArg(0), md), toValue(expr.getArg(1), md), MATH_OPS.get(op));
  19.   }else if (op == Ops.NEGATE){
  20.     return new MathExpr(toValue(expr.getArg(0), md), toValue(new ConstantImpl<LIT>(new LIT("-1", XSD.intType)), md), MathOp.MULTIPLY);
  21.   }else if (op == Ops.MATCHES){
  22.     return new Regex(new Str(toValue(expr.getArg(0), md)), new Str(toValue(expr.getArg(1), md)), null);
  23.   }else if (op == Ops.MATCHES_IC){
  24.     return new Regex(new Str(toValue(expr.getArg(0), md)), new Str(toValue(expr.getArg(1), md)), CASE_INSENSITIVE);
  25.   }else if (op == Ops.STRING_IS_EMPTY){
  26.     return new Regex(new Str(toValue(expr.getArg(0), md)), "", false);
  27.   }else if (op == Ops.IS_NULL){

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-mongodb

  1. protected boolean isReference(Operation<?> expr, int exprIndex) {
  2.   Expression<?> arg = expr.getArg(exprIndex);
  3.   if (arg instanceof Path) {
  4.     return isReference((Path<?>) arg);
  5.   } else {
  6.     return false;
  7.   }
  8. }

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.rdf/rdfbean-core

  1. @Override
  2. public Void visit(Operation<?> expr, Void context) {
  3.   handle(expr.getArgs());
  4.   return null;
  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-sesame3

  1. @SuppressWarnings("unchecked")
  2. @Override
  3. public ValueExpr visit(Operation<?> expr, QueryMetadata md) {
  4.   Operator<?> op = expr.getOperator();
  5.   if (op == Ops.AND) {
  6.     return new And(toValue(expr.getArg(0), md), toValue(expr.getArg(1), md));
  7.   } else if (op == Ops.OR) {
  8.     return new Or(toValue(expr.getArg(0), md), toValue(expr.getArg(1), md));
  9.   } else if (op == Ops.IN) {
  10.     for (Object o : ((Constant<Collection>) expr.getArg(1)).getConstant()) {
  11.       builder.or(ExpressionUtils.eqConst((Expression) expr.getArg(0), o));
  12.     return new Not(toValue(expr.getArg(0), md));
  13.   } else if (COMPARE_OPS.containsKey(op)) {
  14.     if (expr.getArg(1) instanceof SubQueryExpression<?>) {
  15.       return new CompareAll(toValue(expr.getArg(0), md), toTuple(expr.getArg(1), md), COMPARE_OPS.get(op));
  16.     } else {
  17.       return new Compare(toValue(expr.getArg(0), md), toValue(expr.getArg(1), md), COMPARE_OPS.get(op));
  18.     return new MathExpr(toValue(expr.getArg(0), md), toValue(expr.getArg(1), md), MATH_OPS.get(op));
  19.   } else if (op == Ops.NEGATE) {
  20.     return new MathExpr(toValue(expr.getArg(0), md), toValue(new ConstantImpl<LIT>(new LIT("-1", XSD.intType)), md), MathOp.MULTIPLY);
  21.   } else if (op == Ops.MATCHES) {
  22.     return new Regex(new Str(toValue(expr.getArg(0), md)), new Str(toValue(expr.getArg(1), md)), null);
  23.   } else if (op == Ops.MATCHES_IC) {
  24.     return new Regex(new Str(toValue(expr.getArg(0), md)), new Str(toValue(expr.getArg(1), md)), CASE_INSENSITIVE);
  25.   } else if (op == Ops.STRING_IS_EMPTY) {
  26.     return new Regex(new Str(toValue(expr.getArg(0), md)), "", false);
  27.   } else if (op == Ops.IS_NULL) {

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