| Key: |
COR-15
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| Type: |
Improvement
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| Status: |
Open
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| Priority: |
Major
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| Assignee: |
Unassigned
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| Reporter: |
Travis Reeder
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| Votes: |
2
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| Watchers: |
2
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db4o Core
Created: 25/Jul/06 05:50 PM
Updated: 04/Feb/09 04:50 PM
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| Component/s: |
None
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| Affects Version/s: |
None
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| Fix Version/s: |
None
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public class ClassA{
public StructA s;
public int valueB
}
public struct StructA{
int valueA; //indexed
}
Optimize the above case for:
q.descend("valueB").constrain(14).and(
q.descend("s").descend("valueA").constrain(22));
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Description
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public class ClassA{
public StructA s;
public int valueB
}
public struct StructA{
int valueA; //indexed
}
Optimize the above case for:
q.descend("valueB").constrain(14).and(
q.descend("s").descend("valueA").constrain(22)); |
Show » |
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Query Optimization for descend into struct w/indexed field
That could be done because struct always reserving memory. Also structure couldn't be inherited. So you can always treat structure fields as a fields of object holding structure. So that you can query in the style
q.descend("s.valueA").constrain(22);
just place struct fields inside object.