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Remove redundant clone method #21255

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merged 3 commits into from
Mar 26, 2024
Merged

Remove redundant clone method #21255

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7725c92
Mark the immutable class final
findepi Mar 26, 2024
36839b8
Remove redundant clone method
findepi Mar 26, 2024
69219ff
empty: roll the dice 🎲
findepi Mar 26, 2024
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2 changes: 1 addition & 1 deletion core/trino-main/src/main/java/io/trino/execution/resourcegroups/InternalResourceGroup.java
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Original file line number Diff line number Diff line change
Expand Up @@ -954,7 +954,7 @@ public Collection<InternalResourceGroup> subGroups()
ResourceUsage getResourceUsageSnapshot()
{
synchronized (root) {
return cachedResourceUsage.clone();
return cachedResourceUsage;
}
}

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8 changes: 1 addition & 7 deletions core/trino-main/src/main/java/io/trino/execution/resourcegroups/ResourceUsage.java
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@
import static com.google.common.math.LongMath.saturatedSubtract;

@Immutable
class ResourceUsage
final class ResourceUsage
{
private final long cpuUsageMillis;
private final long memoryUsageBytes;
Expand All @@ -32,12 +32,6 @@ public ResourceUsage(long cpuUsageMillis, long memoryUsageBytes)
this.memoryUsageBytes = memoryUsageBytes;
}

@Override
public ResourceUsage clone()
{
return new ResourceUsage(cpuUsageMillis, memoryUsageBytes);
}

public ResourceUsage add(ResourceUsage other)
{
long newCpuUsageMillis = saturatedAdd(this.cpuUsageMillis, other.cpuUsageMillis);
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