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[FlexBuffers][Java] Cache size of Sized objects in FlexBuffers (#5551)

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In my benchmarks it shows deserialization performance improvements of
around 7%
This commit is contained in:
Paulo Pinheiro
2019-10-04 00:56:29 +02:00
committed by Wouter van Oortmerssen
parent d4cae0a623
commit 842f672baf
1 changed files with 5 additions and 1 deletions
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6
java/com/google/flatbuffers/FlexBuffers.java
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@@ -635,12 +635,16 @@ public class FlexBuffers {
// Stores size in `byte_width_` bytes before end position. // Stores size in `byte_width_` bytes before end position.
private static abstract class Sized extends Object { private static abstract class Sized extends Object {
private final int size;
Sized(ByteBuffer buff, int end, int byteWidth) { Sized(ByteBuffer buff, int end, int byteWidth) {
super(buff, end, byteWidth); super(buff, end, byteWidth);
size = readInt(bb, end - byteWidth, byteWidth);
} }
public int size() { public int size() {
return readInt(bb, end - byteWidth, byteWidth); return size;
} }
} }