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GH-525 cache constants and GH-526 query optimizer #527

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merged 4 commits into from
Nov 28, 2024
Merged

GH-525 cache constants and GH-526 query optimizer #527

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013f7eb
GH-526 add test
hmottestad Nov 28, 2024
afb3353
improve how query explanation is transmitted and displayed to the use…
hmottestad Nov 19, 2024
3621402
GH-525 cache getNobjects and capacity
hmottestad Nov 19, 2024
7792de4
GH-526 update VariableToIdSubstitution to optimize at the StatementPa…
hmottestad Nov 19, 2024
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10 changes: 9 additions & 1 deletion ...in/java/com/the_qa_company/qendpoint/core/dictionary/impl/MultipleLangBaseDictionary.java
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Original file line number Diff line number Diff line change
Expand Up @@ -119,11 +119,19 @@ public long getNpredicates() {
return predicates.getNumberOfElements();
}

long cachedNobjects = -1;

@Override
public long getNobjects() {
return getNshared() + nonTyped.getNumberOfElements()
if (cachedNobjects != -1) {
return cachedNobjects;
}

long l = getNshared() + nonTyped.getNumberOfElements()
+ languages.values().stream().mapToLong(DictionarySection::getNumberOfElements).sum()
+ typed.values().stream().mapToLong(DictionarySection::getNumberOfElements).sum();
cachedNobjects = l;
return l;
}

@Override
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11 changes: 10 additions & 1 deletion ...int-core/src/main/java/com/the_qa_company/qendpoint/core/util/io/BigMappedByteBuffer.java
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Original file line number Diff line number Diff line change
Expand Up @@ -76,8 +76,17 @@ public void order(ByteOrder order) {
/**
* @return the capacity of the big buffer
*/

long capacity = -1;

public long capacity() {
return buffers.stream().mapToLong(CloseMappedByteBuffer::capacity).sum();
if (capacity != -1) {
return capacity;
}

long sum = buffers.stream().mapToLong(CloseMappedByteBuffer::capacity).sum();
capacity = sum;
return sum;
}

private int getBufferOffset(long index) {
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