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Simplify map expressions

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This commit is contained in:
Timo Westkämper 2014-12-07 23:01:58 +02:00
parent fb2cea9c17
commit eb60a83372
1 changed files with 3 additions and 6 deletions
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9
querydsl-jpa/src/main/java/com/mysema/query/jpa/JPAMapAccessVisitor.java
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@ -28,17 +28,14 @@ class JPAMapAccessVisitor extends ReplaceVisitor {
Path<?> replacement = replacements.get(expr);
if (replacement == null) {
// join parent as path123 on key(path123) = ...
// expr -> value(path123)
Path parent = pathMetadata.getParent();
ParametrizedExpression parExpr = (ParametrizedExpression) parent;
Path joinPath = new PathImpl(parExpr.getParameter(1),
replacement = new PathImpl(parExpr.getParameter(1),
ExpressionUtils.createRootVariable(parent));
metadata.addJoin(JoinType.JOIN, ExpressionUtils.as(parent, joinPath));
metadata.addJoin(JoinType.JOIN, ExpressionUtils.as(parent, replacement));
metadata.addJoinCondition(ExpressionUtils.eq(
Expressions.operation(parExpr.getParameter(0), JPQLOps.KEY, joinPath),
Expressions.operation(parExpr.getParameter(0), JPQLOps.KEY, replacement),
ExpressionUtils.toExpression(pathMetadata.getElement())));
Expression<?> value = Expressions.operation(expr.getType(), JPQLOps.VALUE, joinPath);
replacement = new PathImpl(expr.getType(), PathMetadataFactory.forDelegate(value));
replacements.put(expr, replacement);
}
return replacement;