Package com.foundationdb.server.types

Examples of com.foundationdb.server.types.TCast

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            TClass source = entry.getKey();
            Map<TClass, TCast> castsByTarget = entry.getValue();
            for (TClass target : tClasses) {
                if (target == source || castsByTarget.containsKey(target))
                    continue;
                TCast sourceToVarchar = cast(source, COMMON);
                if (sourceToVarchar == null)
                    continue;
                TCast varcharToTarget = cast(COMMON, target);
                if (varcharToTarget == null)
                    continue;
                TCast derived = new ChainedCast(sourceToVarchar, varcharToTarget);
                castsByTarget.put(target, derived);
            }
        }
    }
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    private static TCast deriveCast(Map<TClass,Map<TClass,TCast>> castsBySource,
                                    List<? extends TClass> path, int targetIndex) {
        TClass source = path.get(0);
        TClass target = path.get(targetIndex);
        TCast alreadyThere = cast(castsBySource, source,  target);
        if (alreadyThere != null)
            return alreadyThere;
        int intermediateIndex = targetIndex - 1;
        TClass intermediateClass = path.get(intermediateIndex);
        TCast second = cast(castsBySource, intermediateClass, target);
        if (second == null)
            throw new AkibanInternalException("no explicit cast between " + intermediateClass + " and " + target
                    + " while creating cast path: " + path);
        TCast first = deriveCast(castsBySource, path, intermediateIndex);
        if (first == null)
            throw new AkibanInternalException("couldn't derive cast between " + source + " and " + intermediateClass
                    + " while creating cast path: " + path);
        TCast result = new ChainedCast(first, second);
        putCast(castsBySource, result, null);
        return result;
    }
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        if (cast == null)
            return;
        TClass source = cast.sourceClass();
        TClass target = cast.targetClass();
        Map<TClass,TCast> castsByTarget = toMap.get(source);
        TCast old = castsByTarget.put(target, cast);
        if (old != null) {
            logger.error("CAST({} AS {}): {} replaced by {} ", new Object[]{
                    source, target,  old.getClass(), cast.getClass()
            });
            if (duplicates == null)
                throw new AkibanInternalException("multiple casts defined from " + source + " to " + target);
            duplicates.add(new TCastIdentifier(source, target));
        }
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            } else {
                Column oldCol = origTable.getColumnsIncludingInternal().get(oldPosition);
                TInstance oldInst = oldCol.getType();
                TPreparedExpression pExp = new TPreparedField(oldInst, oldPosition);
                if(!oldInst.equalsExcludingNullable(newInst)) {
                    TCast cast = typesRegistry.getCastsResolver().cast(oldInst.typeClass(), newInst.typeClass());
                    pExp = new TCastExpression(pExp, cast, newInst);
                }
                projections.add(pExp);
            }
        }
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                    TClass inputTClass = inputInstance.typeClass();
                    if (inputTClass == targetTClass) {
                        resultInstance = inputInstance;
                    }
                    else {
                        TCast requiredCast = resolver.cast(inputTClass, targetTClass);
                        if (requiredCast == null)
                            throw new OverloadException("can't cast " + inputInstance + " to " + targetTClass);
                        inputInstance = requiredCast.preferredTarget(inputTpv);
                        resultInstance = inputInstance;
                    }
                }
                // no inputInstance = no type attributes
                else {
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Related Classes of com.foundationdb.server.types.TCast

  • com.foundationdb.server.service.externaldata.RowReader
  • com.foundationdb.server.service.restdml.InsertGenerator
  • com.foundationdb.server.service.restdml.UpdateGenerator
  • com.foundationdb.server.store.OnlineHelper
  • com.foundationdb.server.test.ExpressionGenerators
  • com.foundationdb.server.types.service.OverloadResolver$OverloadResult
  • com.foundationdb.server.types.service.TCastsRegistry
  • com.foundationdb.sql.optimizer.rule.ExpressionAssembler
  • com.foundationdb.sql.optimizer.rule.PlanGenerator
  • com.foundationdb.sql.optimizer.rule.TypeResolver$ResolvingVisitor
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