Examples of org.apache.cayenne.merge.DbMerger

org.apache.cayenne.merge.DbMerger
Traverse a {@link DataNode} and a {@link DataMap} and create a group of{@link MergerToken}s to alter the {@link DataNode} datastore to match the{@link DataMap}. @author halset

      } else {
        // Valid schema; check if merge is needed
        Out.debug(SchemaValidator.class, "The database schema is valid; checking if upgrade is needed");


        MergerContext mc = new ExecutingMergerContext(dataMap, dataNode);
        List<MergerToken> allMergeTokens = new DbMerger().createMergeTokens(dataNode, dataMap);


        List<MergerToken> nonAutoMergeTokens = new ArrayList<MergerToken>();
        for(MergerToken mt : allMergeTokens) {
          if(mt instanceof DropTableToDb) {
            // Why would you want to drop AUTO_PK_SUPPORT?

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    protected void prepareMigrator() {
        try {
            adapter = connectionInfo.makeAdapter(getApplication()
                    .getClassLoadingService());
            tokens.setMergerFactory(adapter.mergerFactory());
            merger = new DbMerger();
            List<MergerToken> mergerTokens = merger.createMergeTokens(adapter, connectionInfo
                    .makeDataSource(getApplication().getClassLoadingService()), dataMap);
            tokens.setTokens(mergerTokens);
        }
        catch (Exception ex) {

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    protected void prepareMigrator() {
        try {
            adapter = connectionInfo.makeAdapter(getApplication()
                    .getClassLoadingService());
            tokens.setMergerFactory(adapter.mergerFactory());
            merger = new DbMerger();
            List<MergerToken> mergerTokens = merger.createMergeTokens(
                    adapter,
                    connectionInfo.makeDataSource(getApplication()
                            .getClassLoadingService()),
                    dataMap);

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    protected void prepareMigrator() {
        try {
            adapter = (JdbcAdapter) connectionInfo.makeAdapter(getApplication()
                    .getClassLoadingService());
            tokens.setMergerFactory(adapter.mergerFactory());
            merger = new DbMerger();
            List<MergerToken> mergerTokens = merger.createMergeTokens(
                    adapter,
                    connectionInfo.makeDataSource(getApplication()
                            .getClassLoadingService()),
                    dataMap);

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