Mercurial > hg > mpdl-group
view software/mpdl-services/mpiwg-mpdl-lt/src/de/mpg/mpiwg/berlin/mpdl/lt/morph/db/DbEnvMorph.java @ 19:4a3641ae14d2
Erstellung
author | Josef Willenborg <jwillenborg@mpiwg-berlin.mpg.de> |
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date | Wed, 09 Nov 2011 15:32:05 +0100 |
parents | |
children | e845310098ba |
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package de.mpg.mpiwg.berlin.mpdl.lt.morph.db; import java.io.File; import com.sleepycat.je.Database; import com.sleepycat.je.DatabaseConfig; import com.sleepycat.je.DatabaseException; import com.sleepycat.je.Environment; import com.sleepycat.je.EnvironmentConfig; import de.mpg.mpiwg.berlin.mpdl.exception.ApplicationException; public class DbEnvMorph { private String dataDir; private File envPath; private Environment env; private EnvironmentConfig envConfig; private DatabaseConfig dbConfig; private Database lemmaDB; private Database formDB; public DbEnvMorph() { } public void setDataDir(String dataDir) { this.dataDir = dataDir; } public void init() throws ApplicationException { try { envConfig = new EnvironmentConfig(); dbConfig = new DatabaseConfig(); envConfig.setReadOnly(false); dbConfig.setReadOnly(false); envConfig.setAllowCreate(true); dbConfig.setAllowCreate(true); envConfig.setTransactional(true); dbConfig.setTransactional(true); // allow duplicates for keys dbConfig.setSortedDuplicates(true); envPath = new File(dataDir); env = new Environment(envPath, envConfig); } catch (DatabaseException e) { throw new ApplicationException(e); } } public void openDatabases() throws ApplicationException { try { // open databases (and create them if they do not exist) lemmaDB = env.openDatabase(null, "LemmaDB", dbConfig); formDB = env.openDatabase(null, "FormDB", dbConfig); } catch (DatabaseException e) { throw new ApplicationException(e); } } public void removeDatabases() throws ApplicationException { try { if (formDB != null) formDB.close(); if (lemmaDB != null) lemmaDB.close(); env.removeDatabase(null, "LemmaDB"); env.removeDatabase(null, "FormDB"); formDB = null; lemmaDB = null; /* boolean bla = true; env.truncateDatabase(null, "LemmaDB", bla); env.truncateDatabase(null, "FormDB", bla); */ } catch (DatabaseException e) { throw new ApplicationException(e); } } public Environment getEnv() { return env; } public Database getLemmaDB() { return lemmaDB; } public Database getFormDB() { return formDB; } public void close() throws ApplicationException { if (env != null) { try { if (formDB != null) formDB.close(); if (lemmaDB != null) lemmaDB.close(); if (env != null) env.close(); } catch (DatabaseException e) { throw new ApplicationException(e); } } } }