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LUCENE-2438: Fix encoding in NumericUtils to also set offset to 0 (and javadocs) 

git-svn-id: https://svn.apache.org/repos/asf/lucene/dev/trunk@940545 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Uwe Schindler 2010-05-03 18:06:49 +00:00
parent 4258ebca68
commit d5c0eacc75
1 changed files with 4 additions and 0 deletions
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4
lucene/src/java/org/apache/lucene/util/NumericUtils.java
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@ -99,6 +99,7 @@ public final class NumericUtils {
/**
* Returns prefix coded bits after reducing the precision by <code>shift</code> bits.
* This is method is used by {@link NumericTokenStream}.
* After encoding, {@code bytes.offset} will always be 0.
* @param val the numeric value
* @param shift how many bits to strip from the right
* @param bytes will contain the encoded value
@ -108,6 +109,7 @@ public final class NumericUtils {
if (shift>63 || shift<0)
throw new IllegalArgumentException("Illegal shift value, must be 0..63");
int hash, nChars = (63-shift)/7 + 1;
bytes.offset = 0;
bytes.length = nChars+1;
if (bytes.bytes.length < bytes.length) {
bytes.grow(NumericUtils.BUF_SIZE_LONG);
@ -157,6 +159,7 @@ public final class NumericUtils {
/**
* Returns prefix coded bits after reducing the precision by <code>shift</code> bits.
* This is method is used by {@link NumericTokenStream}.
* After encoding, {@code bytes.offset} will always be 0.
* @param val the numeric value
* @param shift how many bits to strip from the right
* @param bytes will contain the encoded value
@ -166,6 +169,7 @@ public final class NumericUtils {
if (shift>31 || shift<0)
throw new IllegalArgumentException("Illegal shift value, must be 0..31");
int hash, nChars = (31-shift)/7 + 1;
bytes.offset = 0;
bytes.length = nChars+1;
if (bytes.bytes.length < bytes.length) {
bytes.grow(NumericUtils.BUF_SIZE_INT);