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do not unicode compress strings which are longer than 1024 chars
git-svn-id: https://svn.code.sf.net/p/jackcess/code/jackcess/trunk@709 f203690c-595d-4dc9-a70b-905162fa7fd2tags/jackcess-1.2.11
James Ahlborn
11 years ago
3 changed files with 14 additions and 1 deletions
+ 5
- 0
src/changes/changes.xml
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| <author email="javajedi@users.sf.net">Tim McCune</author> | <author email="javajedi@users.sf.net">Tim McCune</author> | ||||
| </properties> | </properties> | ||||
| <body> | <body> | ||||
| <release version="1.2.11" date="TBD"> | |||||
| <action dev="jahlborn" type="fix" system="SourceForge2" issue="94"> | |||||
| Do not unicode compress strings which are longer than 1024 chars. | |||||
| </action> | |||||
| </release> | |||||
| <release version="1.2.10" date="2013-02-18"> | <release version="1.2.10" date="2013-02-18"> | ||||
| <action dev="jahlborn" type="update"> | <action dev="jahlborn" type="update"> | ||||
| Add info to the Column to support MEMO columns which are HYPERLINKS. | Add info to the Column to support MEMO columns which are HYPERLINKS. |
+ 2
- 1
src/java/com/healthmarketscience/jackcess/Column.java
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| } | } | ||||
| // may only compress if column type allows it | // may only compress if column type allows it | ||||
| if(!forceUncompressed && isCompressedUnicode()) { | |||||
| if(!forceUncompressed && isCompressedUnicode() && | |||||
| (text.length() <= getFormat().MAX_COMPRESSED_UNICODE_SIZE)) { | |||||
| // for now, only do very simple compression (only compress text which is | // for now, only do very simple compression (only compress text which is | ||||
| // all ascii text) | // all ascii text) |
+ 7
- 0
src/java/com/healthmarketscience/jackcess/JetFormat.java
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| public final int SIZE_LONG_VALUE_DEF; | public final int SIZE_LONG_VALUE_DEF; | ||||
| public final int MAX_INLINE_LONG_VALUE_SIZE; | public final int MAX_INLINE_LONG_VALUE_SIZE; | ||||
| public final int MAX_LONG_VALUE_ROW_SIZE; | public final int MAX_LONG_VALUE_ROW_SIZE; | ||||
| public final int MAX_COMPRESSED_UNICODE_SIZE; | |||||
| public final int SIZE_TDEF_HEADER; | public final int SIZE_TDEF_HEADER; | ||||
| public final int SIZE_TDEF_TRAILER; | public final int SIZE_TDEF_TRAILER; | ||||
| public final int SIZE_COLUMN_DEF_BLOCK; | public final int SIZE_COLUMN_DEF_BLOCK; | ||||
| SIZE_LONG_VALUE_DEF = defineSizeLongValueDef(); | SIZE_LONG_VALUE_DEF = defineSizeLongValueDef(); | ||||
| MAX_INLINE_LONG_VALUE_SIZE = defineMaxInlineLongValueSize(); | MAX_INLINE_LONG_VALUE_SIZE = defineMaxInlineLongValueSize(); | ||||
| MAX_LONG_VALUE_ROW_SIZE = defineMaxLongValueRowSize(); | MAX_LONG_VALUE_ROW_SIZE = defineMaxLongValueRowSize(); | ||||
| MAX_COMPRESSED_UNICODE_SIZE = defineMaxCompressedUnicodeSize(); | |||||
| SIZE_TDEF_HEADER = defineSizeTdefHeader(); | SIZE_TDEF_HEADER = defineSizeTdefHeader(); | ||||
| SIZE_TDEF_TRAILER = defineSizeTdefTrailer(); | SIZE_TDEF_TRAILER = defineSizeTdefTrailer(); | ||||
| SIZE_COLUMN_DEF_BLOCK = defineSizeColumnDefBlock(); | SIZE_COLUMN_DEF_BLOCK = defineSizeColumnDefBlock(); | ||||
| protected abstract int defineSizeLongValueDef(); | protected abstract int defineSizeLongValueDef(); | ||||
| protected abstract int defineMaxInlineLongValueSize(); | protected abstract int defineMaxInlineLongValueSize(); | ||||
| protected abstract int defineMaxLongValueRowSize(); | protected abstract int defineMaxLongValueRowSize(); | ||||
| protected abstract int defineMaxCompressedUnicodeSize(); | |||||
| protected abstract int defineSizeTdefHeader(); | protected abstract int defineSizeTdefHeader(); | ||||
| protected abstract int defineSizeTdefTrailer(); | protected abstract int defineSizeTdefTrailer(); | ||||
| protected abstract int defineSizeColumnDefBlock(); | protected abstract int defineSizeColumnDefBlock(); | ||||
| @Override | @Override | ||||
| protected int defineMaxLongValueRowSize() { return 2032; } | protected int defineMaxLongValueRowSize() { return 2032; } | ||||
| @Override | @Override | ||||
| protected int defineMaxCompressedUnicodeSize() { return 1024; } | |||||
| @Override | |||||
| protected int defineSizeTdefHeader() { return 63; } | protected int defineSizeTdefHeader() { return 63; } | ||||
| @Override | @Override | ||||
| protected int defineSizeTdefTrailer() { return 2; } | protected int defineSizeTdefTrailer() { return 2; } | ||||
| @Override | @Override | ||||
| protected int defineMaxLongValueRowSize() { return 4076; } | protected int defineMaxLongValueRowSize() { return 4076; } | ||||
| @Override | @Override | ||||
| protected int defineMaxCompressedUnicodeSize() { return 1024; } | |||||
| @Override | |||||
| protected int defineSizeTdefHeader() { return 63; } | protected int defineSizeTdefHeader() { return 63; } | ||||
| @Override | @Override | ||||
| protected int defineSizeTdefTrailer() { return 2; } | protected int defineSizeTdefTrailer() { return 2; } |
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