Examples of liquibase.change.Change

liquibase.change.Change
Interface all changes (refactorings) implement. Instances of these objects are normally created via the {@link ChangeFactory } by {@link liquibase.parser.ChangeLogParser} implementations. @see ChangeFactory @see Database

                }


                TestState state = new TestState(name.getMethodName(), changeName, database.getShortName(), TestState.Type.SQL);
                state.addComment("Database: " + database.getShortName());


                Change change = changeFactory.create(changeName);
                if (!change.supports(database)) {
                    continue;
                }
                if (change.generateStatementsVolatile(database)) {
                    continue;
                }
                ChangeMetaData changeMetaData = ChangeFactory.getInstance().getChangeMetaData(change);


                change.setResourceAccessor(new JUnitResourceAccessor());


                for (String paramName : new TreeSet<String>(changeMetaData.getRequiredParameters(database).keySet())) {
                    ChangeParameterMetaData param = changeMetaData.getParameters().get(paramName);
                    Object paramValue = param.getExampleValue(database);
                    String serializedValue;
                    serializedValue = formatParameter(paramValue);
                    state.addComment("Change Parameter: " + param.getParameterName() + "=" + serializedValue);
                    param.setValue(change, paramValue);
                }


                ValidationErrors errors = change.validate(database);
                assertFalse("Validation errors for " + changeMetaData.getName() + " on " + database.getShortName() + ": " + errors.toString(), errors.hasErrors());


                SqlStatement[] sqlStatements = change.generateStatements(database);
                for (SqlStatement statement : sqlStatements) {
                    Sql[] sql = SqlGeneratorFactory.getInstance().generateSql(statement, database);
                    if (sql == null) {
                        System.out.println("Null sql for " + statement + " on " + database.getShortName());
                    } else {

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            for (Database database : DatabaseFactory.getInstance().getImplementedDatabases()) {
                if (database.getShortName() == null) {
                    continue;
                }


                Change change = changeFactory.create(changeName);
                if (!change.supports(database)) {
                    continue;
                }
                if (change.generateStatementsVolatile(database)) {
                    continue;
                }
                ChangeMetaData changeMetaData = ChangeFactory.getInstance().getChangeMetaData(change);


                change.setResourceAccessor(new JUnitResourceAccessor());


                ArrayList<String> requiredParams = new ArrayList<String>(changeMetaData.getRequiredParameters(database).keySet());
                for (String paramName : requiredParams) {
                    ChangeParameterMetaData param = changeMetaData.getParameters().get(paramName);
                    Object paramValue = param.getExampleValue(database);
                    param.setValue(change, paramValue);
                }


                for (int i = 0; i < requiredParams.size(); i++) {
                    String paramToRemove = requiredParams.get(i);
                    ChangeParameterMetaData paramToRemoveMetadata = changeMetaData.getParameters().get(paramToRemove);
                    Object currentValue = paramToRemoveMetadata.getCurrentValue(change);
                    paramToRemoveMetadata.setValue(change, null);


                    assertTrue("No errors even with "+changeMetaData.getName()+" with a null "+paramToRemove+" on "+database.getShortName(), change.validate(database).hasErrors());
                    paramToRemoveMetadata.setValue(change, currentValue);
                }
            }
        }
    }

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                }


                TestState state = new TestState(name.getMethodName(), changeName, database.getShortName(), TestState.Type.SQL);
                state.addComment("Database: " + database.getShortName());


                Change baseChange = changeFactory.create(changeName);
                if (!baseChange.supports(database)) {
                    continue;
                }
                if (baseChange.generateStatementsVolatile(database)) {
                    continue;
                }
                ChangeMetaData changeMetaData = ChangeFactory.getInstance().getChangeMetaData(baseChange);
                ArrayList<String> optionalParameters = new ArrayList<String>(changeMetaData.getOptionalParameters(database).keySet());
                Collections.sort(optionalParameters);


                List<List<String>> paramLists = powerSet(optionalParameters);
                Collections.sort(paramLists, new Comparator<List<String>>() {
                    @Override
                    public int compare(List<String> o1, List<String> o2) {
                        int comp = Integer.valueOf(o1.size()).compareTo(o2.size());
                        if (comp == 0) {
                            comp =  StringUtils.join(o1,",").compareTo(StringUtils.join(o2, ","));
                        }
                        return comp;
                    }
                });
                for (List<String> permutation : paramLists) {
                    Change change = changeFactory.create(changeName);
                    change.setResourceAccessor(new JUnitResourceAccessor());
//
                    for (String paramName : new TreeSet<String>(changeMetaData.getRequiredParameters(database).keySet())) {
                        ChangeParameterMetaData param = changeMetaData.getParameters().get(paramName);
                        Object paramValue = param.getExampleValue(database);
                        String serializedValue;
                        serializedValue = formatParameter(paramValue);
                        state.addComment("Required Change Parameter: "+ param.getParameterName()+"="+ serializedValue);
                        param.setValue(change, paramValue);
                    }


                    for (String paramName : permutation) {
                        ChangeParameterMetaData param = changeMetaData.getParameters().get(paramName);
                        if (!param.supports(database)) {
                            continue;
                        }
                        Object paramValue = param.getExampleValue(database);
                        String serializedValue;
                        serializedValue = formatParameter(paramValue);
                        state.addComment("Optional Change Parameter: "+ param.getParameterName()+"="+ serializedValue);
                        param.setValue(change, paramValue);


                    }


                    ValidationErrors errors = change.validate(database);
                    assertFalse("Validation errors for " + changeMetaData.getName() + " on "+database.getShortName()+": " +errors.toString(), errors.hasErrors());
//
//                    SqlStatement[] sqlStatements = change.generateStatements(database);
//                    for (SqlStatement statement : sqlStatements) {
//                        Sql[] sql = SqlGeneratorFactory.getInstance().generateSql(statement, database);

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                        .addColumnValue("LIQUIBASE", LiquibaseUtil.getBuildVersion().replaceAll("SNAPSHOT", "SNP"));


                String tag = null;
                List<Change> changes = changeSet.getChanges();
                if (changes != null && changes.size() == 1) {
                    Change change = changes.get(0);
                    if (change instanceof TagDatabaseChange) {
                        TagDatabaseChange tagChange = (TagDatabaseChange) change;
                        tag = tagChange.getTag();
                    }
                }

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            addRollbackChange(new EmptyChange());
        }
    }


    protected Change toChange(ParsedNode value, ResourceAccessor resourceAccessor) throws ParsedNodeException {
        Change change = ChangeFactory.getInstance().create(value.getName());
        if (change == null) {
            return null;
        } else {
            try {
                change.load(value, resourceAccessor);
            } catch (ParsedNodeException e) {
                e.printStackTrace();
            }
            return change;
        }

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                }


            } else {
                List<Change> changes = getChanges();
                for (int i = changes.size() - 1; i >= 0; i--) {
                    Change change = changes.get(i);
                    database.executeRollbackStatements(change, sqlVisitors);
                }
            }


            if (runInTransaction) {

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Related Classes of liquibase.change.Change

liquibase.changelog.ChangeSet

liquibase.sqlgenerator.core.MarkChangeSetRanGenerator

liquibase.verify.change.VerifyChangeClassesTest

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