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catbref 948bc95644 More work on transactions/blocks
Added Apache commons-net as maven dependency for NTP support.

Added SAVEPOINT and ROLLBACK TO SAVEPOINT support to DB class.
Added exists() test to DB class.

Add MessageTransactions, with V1/V3 code in one class instead of very similar code
split across two classes. Update DB schema to add version.

More fleshing out of Assets class.

Fleshing out Block class with parse(), generating balance and signature-related methods.

More javadoc. More tests.
2018-06-04 11:45:40 +01:00
.settings Initial stab at migrating to HSQLDB for Qora gen2 2018-05-16 11:46:44 +01:00
src More work on transactions/blocks 2018-06-04 11:45:40 +01:00
.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