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Fix exists rendering

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This commit is contained in:
Timo Westkämper 2014-09-30 18:13:42 +03:00
parent c2d201fd9b
commit 42e0310416
1 changed files with 8 additions and 23 deletions
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31
querydsl-core/src/main/java/com/mysema/query/support/DetachableMixin.java
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@ -18,28 +18,9 @@ import javax.annotation.Nullable;
import com.mysema.query.Detachable;
import com.mysema.query.QueryMetadata;
import com.mysema.query.Tuple;
import com.mysema.query.types.ConstantImpl;
import com.mysema.query.types.Expression;
import com.mysema.query.types.NullExpression;
import com.mysema.query.types.Predicate;
import com.mysema.query.types.ProjectionRole;
import com.mysema.query.types.expr.BooleanExpression;
import com.mysema.query.types.expr.ComparableExpression;
import com.mysema.query.types.expr.DateExpression;
import com.mysema.query.types.expr.DateTimeExpression;
import com.mysema.query.types.expr.NumberExpression;
import com.mysema.query.types.expr.StringExpression;
import com.mysema.query.types.expr.TimeExpression;
import com.mysema.query.types.expr.Wildcard;
import com.mysema.query.types.query.BooleanSubQuery;
import com.mysema.query.types.query.ComparableSubQuery;
import com.mysema.query.types.query.DateSubQuery;
import com.mysema.query.types.query.DateTimeSubQuery;
import com.mysema.query.types.query.ListSubQuery;
import com.mysema.query.types.query.NumberSubQuery;
import com.mysema.query.types.query.SimpleSubQuery;
import com.mysema.query.types.query.StringSubQuery;
import com.mysema.query.types.query.TimeSubQuery;
import com.mysema.query.types.*;
import com.mysema.query.types.expr.*;
import com.mysema.query.types.query.*;
/**
* Mixin style implementation of the Detachable interface
@ -65,7 +46,11 @@ public class DetachableMixin implements Detachable {
if (queryMixin.getMetadata().getJoins().isEmpty()) {
throw new IllegalArgumentException("No sources given");
}
return unique(queryMixin.getMetadata().getJoins().get(0).getTarget()).exists();
Expression<?> expr = queryMixin.getMetadata().getJoins().get(0).getTarget();
if (expr instanceof Operation && ((Operation)expr).getOperator() == Ops.ALIAS) {
expr = ((Operation)expr).getArg(1);
}
return unique(expr).exists();
}
@Override