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Add Table methods to access the creation and last modified dates 

git-svn-id: https://svn.code.sf.net/p/jackcess/code/jackcess/trunk@1375 f203690c-595d-4dc9-a70b-905162fa7fd2
tags/jackcess-4.0.2
James Ahlborn 2 years ago
parent
f8afc8dabc
commit
a61e2da7fe
6 changed files with 75 additions and 1 deletions
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  1. 5
    0
      src/changes/changes.xml
  2. 16
    0
      src/main/java/com/healthmarketscience/jackcess/Table.java
  3. 1
    1
      src/main/java/com/healthmarketscience/jackcess/impl/ColumnImpl.java
  4. 23
    0
      src/main/java/com/healthmarketscience/jackcess/impl/DatabaseImpl.java
  5. 11
    0
      src/main/java/com/healthmarketscience/jackcess/impl/TableImpl.java
  6. 19
    0
      src/test/java/com/healthmarketscience/jackcess/DatabaseTest.java

+ 5
- 0
src/changes/changes.xml View File

@@ -4,6 +4,11 @@
<author email="javajedi@users.sf.net">Tim McCune</author>
</properties>
<body>
<release version="4.0.2" date="TBD">
<action dev="jahlborn" type="update">
Add Table methods to access the creation and last modified dates.
</action>
</release>
<release version="4.0.1" date="2021-06-21">
<action dev="jahlborn" type="fix">
Ignore trailing spaces when creating text index entries.

+ 16
- 0
src/main/java/com/healthmarketscience/jackcess/Table.java View File

@@ -17,6 +17,7 @@ limitations under the License.
package com.healthmarketscience.jackcess;

import java.io.IOException;
import java.time.LocalDateTime;
import java.util.Iterator;
import java.util.List;
import java.util.Map;
@@ -133,6 +134,21 @@ public interface Table extends Iterable<Row>
*/
public PropertyMap getProperties() throws IOException;

/**
* @return the created date for this table if available
* @usage _general_method_
*/
public LocalDateTime getCreatedDate() throws IOException;

/**
* Note: jackcess <i>does not automatically update the modified date of a
* Table</i>.
*
* @return the last updated date for this table if available
* @usage _general_method_
*/
public LocalDateTime getUpdatedDate() throws IOException;

/**
* @return All of the Indexes on this table (unmodifiable List)
* @usage _intermediate_method_

+ 1
- 1
src/main/java/com/healthmarketscience/jackcess/impl/ColumnImpl.java View File

@@ -1143,7 +1143,7 @@ public class ColumnImpl implements Column, Comparable<ColumnImpl>, DateTimeConte
return dtc.getDateTimeFactory().toDateDouble(value, dtc);
}

private static LocalDateTime toLocalDateTime(
static LocalDateTime toLocalDateTime(
Object value, DateTimeContext dtc) {
if(value instanceof TemporalAccessor) {
return temporalToLocalDateTime((TemporalAccessor)value, dtc);

+ 23
- 0
src/main/java/com/healthmarketscience/jackcess/impl/DatabaseImpl.java View File

@@ -32,6 +32,7 @@ import java.nio.file.OpenOption;
import java.nio.file.Path;
import java.nio.file.StandardOpenOption;
import java.text.SimpleDateFormat;
import java.time.LocalDateTime;
import java.time.ZoneId;
import java.util.ArrayList;
import java.util.Arrays;
@@ -257,6 +258,10 @@ public class DatabaseImpl implements Database, DateTimeContext
/** the columns to read when getting object propertyes */
private static Collection<String> SYSTEM_CATALOG_PROPS_COLUMNS =
new HashSet<String>(Arrays.asList(CAT_COL_ID, CAT_COL_PROPS));
/** the columns to read when grabbing dates */
private static Collection<String> SYSTEM_CATALOG_DATE_COLUMNS =
new HashSet<String>(Arrays.asList(CAT_COL_ID,
CAT_COL_DATE_CREATE, CAT_COL_DATE_UPDATE));

/** regex matching characters which are invalid in identifier names */
private static final Pattern INVALID_IDENTIFIER_CHARS =
@@ -1535,6 +1540,24 @@ public class DatabaseImpl implements Database, DateTimeContext
objectId, SYSTEM_CATALOG_PROPS_COLUMNS), owner);
}

LocalDateTime getCreateDateForObject(int objectId) throws IOException {
return getDateForObject(objectId, CAT_COL_DATE_CREATE);
}

LocalDateTime getUpdateDateForObject(int objectId) throws IOException {
return getDateForObject(objectId, CAT_COL_DATE_UPDATE);
}

private LocalDateTime getDateForObject(int objectId, String dateCol)
throws IOException {
Row row = _tableFinder.getObjectRow(objectId, SYSTEM_CATALOG_DATE_COLUMNS);
if(row == null) {
return null;
}
Object date = row.get(dateCol);
return ((date != null) ? ColumnImpl.toLocalDateTime(date, this) : null);
}

private Integer getDbParentId() throws IOException {
if(_dbParentId == null) {
// need the parent id of the databases objects

+ 11
- 0
src/main/java/com/healthmarketscience/jackcess/impl/TableImpl.java View File

@@ -22,6 +22,7 @@ import java.io.StringWriter;
import java.nio.BufferOverflowException;
import java.nio.ByteBuffer;
import java.nio.charset.Charset;
import java.time.LocalDateTime;
import java.util.AbstractMap;
import java.util.ArrayList;
import java.util.Arrays;
@@ -476,6 +477,16 @@ public class TableImpl implements Table, PropertyMaps.Owner
return _props;
}

@Override
public LocalDateTime getCreatedDate() throws IOException {
return getDatabase().getCreateDateForObject(_tableDefPageNumber);
}

@Override
public LocalDateTime getUpdatedDate() throws IOException {
return getDatabase().getUpdateDateForObject(_tableDefPageNumber);
}

/**
* @return all PropertyMaps for this table (and columns)
* @usage _advanced_method_

+ 19
- 0
src/test/java/com/healthmarketscience/jackcess/DatabaseTest.java View File

@@ -1090,6 +1090,25 @@ public class DatabaseTest extends TestCase
}
}

public void testTableDates() throws Exception {
for (final TestDB testDB : SUPPORTED_DBS_TEST_FOR_READ) {
Table table = open(testDB).getTable("Table1");
String expectedCreateDate = null;
String expectedUpdateDate = null;
if(testDB.getExpectedFileFormat() == FileFormat.V1997) {
expectedCreateDate = "2010-03-05T14:48:26.420";
expectedUpdateDate = "2010-03-05T14:48:26.607";
} else {
expectedCreateDate = "2004-05-28T17:51:48.701";
expectedUpdateDate = "2006-07-24T09:56:19.701";
}
System.out.println("FOO " + testDB.getExpectedFileFormat() + " " +
table.getCreatedDate() + " " +
table.getUpdatedDate());
assertEquals(expectedCreateDate, table.getCreatedDate().toString());
assertEquals(expectedUpdateDate, table.getUpdatedDate().toString());
}
}
private static void checkRawValue(String expected, Object val)
{
if(expected != null) {

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