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| author | James Ahlborn <jtahlborn@yahoo.com> | 2012-11-08 04:25:21 +0000 |
|---|---|---|
| committer | James Ahlborn <jtahlborn@yahoo.com> | 2012-11-08 04:25:21 +0000 |
| commit | c0d41579f0184cfc049cb69f1e4f6f46c1fac58a (patch) | |
| tree | 90c84598415b0756d45a9d9a295ab93388d8f3b6 | |
| parent | ec386dda87d8c710a144108af074e90982cc2257 (diff) | |
| download | jackcess-c0d41579f0184cfc049cb69f1e4f6f46c1fac58a.tar.gz jackcess-c0d41579f0184cfc049cb69f1e4f6f46c1fac58a.zip | |
add support for hyperlink columns
git-svn-id: https://svn.code.sf.net/p/jackcess/code/jackcess/trunk@653 f203690c-595d-4dc9-a70b-905162fa7fd2
| -rw-r--r-- | src/changes/changes.xml | 5 | ||||
| -rw-r--r-- | src/java/com/healthmarketscience/jackcess/Column.java | 51 |
2 files changed, 52 insertions, 4 deletions
diff --git a/src/changes/changes.xml b/src/changes/changes.xml index 6573d46..6e241d2 100644 --- a/src/changes/changes.xml +++ b/src/changes/changes.xml @@ -4,6 +4,11 @@ <author email="javajedi@users.sf.net">Tim McCune</author> </properties> <body> + <release version="1.2.10" date="TBD"> + <action dev="jahlborn" type="update"> + Add info to the Column to support MEMO columns which are HYPERLINKS. + </action> + </release> <release version="1.2.9" date="2012-10-15"> <action dev="jahlborn" type="update"> Add some more functionality to Joiner to facilitate integrity diff --git a/src/java/com/healthmarketscience/jackcess/Column.java b/src/java/com/healthmarketscience/jackcess/Column.java index e5503bd..8e3033d 100644 --- a/src/java/com/healthmarketscience/jackcess/Column.java +++ b/src/java/com/healthmarketscience/jackcess/Column.java @@ -139,6 +139,12 @@ public class Column implements Comparable<Column> { public static final byte AUTO_NUMBER_GUID_FLAG_MASK = (byte)0x40; /** + * mask for the hyperlink bit (on memo types) + * @usage _advanced_field_ + */ + public static final byte HYPERLINK_FLAG_MASK = (byte)0x80; + + /** * mask for the unknown bit (possible "can be null"?) * @usage _advanced_field_ */ @@ -288,6 +294,11 @@ public class Column implements Comparable<Column> { _textInfo._compressedUnicode = ((buffer.get(offset + getFormat().OFFSET_COLUMN_COMPRESSED_UNICODE) & 1) == 1); + + if(_type == DataType.MEMO) { + // only memo fields can be hyperlinks + _textInfo._hyperlink = ((flags & HYPERLINK_FLAG_MASK) != 0); + } } setAutoNumberGenerator(); @@ -623,6 +634,23 @@ public class Column implements Comparable<Column> { modifyTextInfo(); _textInfo._versionHistoryCol = versionHistoryCol; } + + /** + * Returns whether or not this is a hyperlink column (only possible for + * columns of type MEMO). + * @usage _general_method_ + */ + public boolean isHyperlink() { + return _textInfo._hyperlink; + } + + /** + * @usage _general_method_ + */ + public void setHyperlink(boolean hyperlink) { + modifyTextInfo(); + _textInfo._hyperlink = hyperlink; + } /** * Returns extended functionality for "complex" columns. @@ -771,6 +799,13 @@ public class Column implements Comparable<Column> { "Only textual columns allow unicode compression (text/memo)"); } } + + if(isHyperlink()) { + if(getType() != DataType.MEMO) { + throw new IllegalArgumentException( + "Only memo columns can be hyperlinks"); + } + } } public Object setRowValue(Object[] rowArray, Object value) { @@ -1733,13 +1768,16 @@ public class Column implements Comparable<Column> { * Constructs a byte containing the flags for this column. */ private byte getColumnBitFlags() { - byte flags = Column.UNKNOWN_FLAG_MASK; + byte flags = UNKNOWN_FLAG_MASK; if(!isVariableLength()) { - flags |= Column.FIXED_LEN_FLAG_MASK; + flags |= FIXED_LEN_FLAG_MASK; } if(isAutoNumber()) { flags |= getAutoNumberGenerator().getColumnFlags(); } + if(isHyperlink()) { + flags |= HYPERLINK_FLAG_MASK; + } return flags; } @@ -1765,6 +1803,9 @@ public class Column implements Comparable<Column> { if(isAppendOnly()) { rtn.append("\n\tAppend only: " + isAppendOnly()); } + if(isHyperlink()) { + rtn.append("\n\tHyperlink: " + isHyperlink()); + } } if(_autoNumber) { rtn.append("\n\tLast AutoNumber: " + _autoNumberGenerator.getLast()); @@ -2018,8 +2059,7 @@ public class Column implements Comparable<Column> { // we specifically put the "long variable" values after the normal // variable length values so that we have a better chance of fitting it // all (because "long variable" values can go in separate pages) - short longVariableOffset = - Column.countNonLongVariableLength(columns); + short longVariableOffset = countNonLongVariableLength(columns); for (Column col : columns) { // record this for later use when writing indexes col.setColumnNumber(columnNumber); @@ -2398,5 +2438,8 @@ public class Column implements Comparable<Column> { /** complex column which tracks the version history for this "append only" column */ private Column _versionHistoryCol; + /** whether or not this is a hyperlink column (only possible for columns + of type MEMO) */ + private boolean _hyperlink; } } |