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No need for database.DB class as the code is specific to HSQLDB so moved into relevant repository.hsqldb classes.

Top-level Repository instance (e.g. HSQLDBRepository) is used within subclasses, e.g. HSQLDBBlockRepository, so they
can share the same repository state, like underlying SQL Connection for easier transactional support.

HSQLDBRepository subclasses now call checkedExecute() on top-level repository instance, instead of passing Connection
to obsolete DB.checkedExecute.

No need for qora.block.BlockFactory any more as those methods are now in repository.

More work on Blocks and Transactions in general.
2018-06-12 10:21:03 +01:00
.settings more work on DAO - for illustrative purposes only!! 2018-06-08 13:30:12 +01:00
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.classpath Initial stab at migrating to HSQLDB for Qora gen2 2018-05-16 11:46:44 +01:00
.gitignore Initial stab at migrating to HSQLDB for Qora gen2 2018-05-16 11:46:44 +01:00
.project Initial stab at migrating to HSQLDB for Qora gen2 2018-05-16 11:46:44 +01:00
NOTES.md Create NOTES.md 2018-05-16 12:59:15 +01:00
pom.xml More work on transactions/blocks 2018-06-04 11:45:40 +01:00
README.md Create README.md 2018-05-16 12:22:48 +01:00

Qora2

To use:

  • Use maven to fetch dependencies.
  • Build project.
  • Fire up an old-gen Qora node.
  • Run src/test/update.java as a JUnit test to build DB structure.
  • Run src/test/migrate.java as a JUnit test to migrate old Qora blocks to DB.

You should now be able to run src/test/load.java and src/test/save.java as JUnit tests demonstrating loading/saving Transactions from/to database.

You can also examine the migrated database using HSQLDB's "sqltool".

It's a good idea to install "rlwrap" (ReadLine wrapper) too as sqltool doesn't support command history/editing!

Typical command line for sqltool would be:

rlwrap java -cp ${HSQLDB_JAR}:${SQLTOOL_JAR} org.hsqldb.cmdline.SqlTool --rcFile=${SQLTOOL_RC} qora

${HSQLDB_JAR} contains pathname to hsqldb-2.4.0.jar, typically ${HOME}/.m2/repository/org/hsqldb/hsqldb/2.4.0/hsqldb-2.4.0.jar

${SQLTOOL_JAR} contains pathname to where you downloaded sqltool-2.2.6.jar

${SQLTOOL_RC} contains pathname to a text file describing Qora2 database, e.g. ${HOME}/.sqltool.rc, with contents like:

urlid qora
url jdbc:hsqldb:file:db/test
username SA
password

You could change the line url jdbc:hsqldb:file:db/test to use a full pathname for easier use.

Another idea is to assign a shell alias in your .bashrc like:

alias sqltool='rlwrap java -cp ${HSQLDB_JAR}:${SQLTOOL_JAR} org.hsqldb.cmdline.SqlTool --rcFile=${SQLTOOL_RC}'

So you can simply type: sqltool qora