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Java: Added ByteBufferFactory interface and sizedInputStream method. (#4379)

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The ByteBufferFactory interface gives the user an option to specify
the method in which the internal ByteBuffer is allocated. This provides
flexibility in the type of ByteBuffer that can be used.
The sizedInputStream method is an alternative to sizedByteArray that
does not make a copy of the data in memory.
This commit is contained in:
Alex Wasserman
2017-07-13 10:33:32 -05:00
committed by Wouter van Oortmerssen
parent f20204180d
commit 625c989875
7 changed files with 308 additions and 173 deletions
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12
java/com/google/flatbuffers/Table.java
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@@ -68,7 +68,7 @@ public class Table {
}
protected static int __offset(int vtable_offset, int offset, ByteBuffer bb) {
int vtable = bb.array().length - offset;
int vtable = bb.capacity() - offset;
return bb.getShort(vtable + vtable_offset - bb.getInt(vtable)) + vtable;
}
@@ -245,10 +245,9 @@ public class Table {
int startPos_1 = offset_1 + SIZEOF_INT;
int startPos_2 = offset_2 + SIZEOF_INT;
int len = Math.min(len_1, len_2);
byte[] bbArray = bb.array();
for(int i = 0; i < len; i++) {
if (bbArray[i + startPos_1] != bbArray[i + startPos_2])
return bbArray[i + startPos_1] - bbArray[i + startPos_2];
if (bb.get(i + startPos_1) != bb.get(i + startPos_2))
return bb.get(i + startPos_1) - bb.get(i + startPos_2);
}
return len_1 - len_2;
}
@@ -266,10 +265,9 @@ public class Table {
int len_2 = key.length;
int startPos_1 = offset_1 + Constants.SIZEOF_INT;
int len = Math.min(len_1, len_2);
byte[] bbArray = bb.array();
for (int i = 0; i < len; i++) {
if (bbArray[i + startPos_1] != key[i])
return bbArray[i + startPos_1] - key[i];
if (bb.get(i + startPos_1) != key[i])
return bb.get(i + startPos_1) - key[i];
}
return len_1 - len_2;
}