Changed what sequence attributes are included in diff/generate changelog for Snowflake

liquibase-snowflake/src/main/java/liquibase/diff/output/changelog/core/ChangedSequenceChangeGeneratorSnowflake.java

@@ -0,0 +1,47 @@
+package liquibase.diff.output.changelog.core;
+
+import liquibase.change.Change;
+import liquibase.change.core.AlterSequenceChange;
+import liquibase.database.Database;
+import liquibase.database.core.SnowflakeDatabase;
+import liquibase.diff.ObjectDifferences;
+import liquibase.diff.output.DiffOutputControl;
+import liquibase.diff.output.changelog.ChangeGeneratorChain;
+import liquibase.structure.DatabaseObject;
+import liquibase.structure.core.Sequence;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ChangedSequenceChangeGeneratorSnowflake extends ChangedSequenceChangeGenerator{
+
+    @Override
+    public int getPriority(Class<? extends DatabaseObject> objectType, Database database) {
+        int priority = super.getPriority(objectType, database);
+        if ((Sequence.class.isAssignableFrom(objectType)) && (database instanceof SnowflakeDatabase)) {
+            priority += PRIORITY_DATABASE;
+        }
+        return priority;
+    }
+
+    @Override
+    public Change[] fixChanged(DatabaseObject changedObject, ObjectDifferences differences, DiffOutputControl control, Database referenceDatabase, Database comparisonDatabase, ChangeGeneratorChain chain) {
+        Sequence sequence = (Sequence) changedObject;
+
+        List<Change> changes = new ArrayList<>();
+        AlterSequenceChange accumulatedChange = createAlterSequenceChange(sequence, control);
+
+        if (differences.isDifferent("incrementBy")) {
+            AlterSequenceChange change = createAlterSequenceChange(sequence, control);
+            change.setIncrementBy(sequence.getIncrementBy());
+            accumulatedChange.setIncrementBy(sequence.getIncrementBy());
+            changes.add(change);
+        }
+
+        if (changes.isEmpty()) {
+            return null;
+        } else {
+            return changes.toArray(new Change[changes.size()]);
+        }
+    }
+}

liquibase-snowflake/src/main/java/liquibase/diff/output/changelog/core/MissingSequenceChangeGeneratorSnowflake.java

@@ -0,0 +1,41 @@
+package liquibase.diff.output.changelog.core;
+
+import liquibase.change.Change;
+import liquibase.change.core.CreateSequenceChange;
+import liquibase.database.Database;
+import liquibase.database.core.SnowflakeDatabase;
+import liquibase.diff.output.DiffOutputControl;
+import liquibase.diff.output.changelog.ChangeGeneratorChain;
+import liquibase.structure.DatabaseObject;
+import liquibase.structure.core.Sequence;
+
+public class MissingSequenceChangeGeneratorSnowflake extends MissingSequenceChangeGenerator{
+
+    @Override
+    public int getPriority(Class<? extends DatabaseObject> objectType, Database database) {
+        int priority = super.getPriority(objectType, database);
+        if ((Sequence.class.isAssignableFrom(objectType)) && (database instanceof SnowflakeDatabase)) {
+            priority += PRIORITY_DATABASE;
+        }
+        return priority;
+    }
+
+    @Override
+    public Change[] fixMissing(DatabaseObject missingObject, DiffOutputControl control, Database referenceDatabase, Database comparisonDatabase, ChangeGeneratorChain chain) {
+        Sequence sequence = (Sequence) missingObject;
+
+        CreateSequenceChange change = new CreateSequenceChange();
+        change.setSequenceName(sequence.getName());
+        if (control.getIncludeCatalog()) {
+            change.setCatalogName(sequence.getSchema().getCatalogName());
+        }
+        if (control.getIncludeSchema()) {
+            change.setSchemaName(sequence.getSchema().getName());
+        }
+        change.setStartValue(sequence.getStartValue());
+        change.setIncrementBy(sequence.getIncrementBy());
+
+        return new Change[] { change };
+
+    }
+}

liquibase-snowflake/src/main/java/liquibase/sqlgenerator/core/CreateSequenceGeneratorSnowflake.java

@@ -0,0 +1,54 @@
+package liquibase.sqlgenerator.core;
+
+import liquibase.database.Database;
+import liquibase.database.core.*;
+import liquibase.exception.ValidationErrors;
+import liquibase.sql.Sql;
+import liquibase.sql.UnparsedSql;
+import liquibase.sqlgenerator.SqlGeneratorChain;
+import liquibase.statement.core.CreateSequenceStatement;
+
+public class CreateSequenceGeneratorSnowflake extends CreateSequenceGenerator{
+
+    @Override
+    public int getPriority() {
+        return PRIORITY_DATABASE;
+    }
+
+    @Override
+    public boolean supports(CreateSequenceStatement statement, Database database) {
+        return database instanceof SnowflakeDatabase;
+    }
+
+    @Override
+    public ValidationErrors validate(CreateSequenceStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) {
+        ValidationErrors validationErrors = new ValidationErrors();
+
+        validationErrors.checkRequiredField("sequenceName", statement.getSequenceName());
+
+        validationErrors.checkDisallowedField("minValue", statement.getMinValue(), database, SnowflakeDatabase.class);
+        validationErrors.checkDisallowedField("maxValue", statement.getMaxValue(), database, SnowflakeDatabase.class);
+        validationErrors.checkDisallowedField("cacheSize", statement.getCacheSize(), database, SnowflakeDatabase.class);
+        validationErrors.checkDisallowedField("cycle", statement.getCycle(), database, SnowflakeDatabase.class);
+        validationErrors.checkDisallowedField("datatype", statement.getDataType(), database, SnowflakeDatabase.class);
+        validationErrors.checkDisallowedField("ordered", statement.getOrdered(), database, SnowflakeDatabase.class);
+
+        return validationErrors;
+    }
+
+    @Override
+    public Sql[] generateSql(CreateSequenceStatement statement, Database database, SqlGeneratorChain sqlGeneratorChain) {
+        StringBuilder queryStringBuilder = new StringBuilder();
+        queryStringBuilder.append("CREATE SEQUENCE ");
+        queryStringBuilder.append(database.escapeSequenceName(statement.getCatalogName(), statement.getSchemaName(), statement.getSequenceName()));
+        if (database instanceof SnowflakeDatabase) {
+            if (statement.getStartValue() != null) {
+                queryStringBuilder.append(" START WITH ").append(statement.getStartValue());
+            }
+            if (statement.getIncrementBy() != null) {
+                queryStringBuilder.append(" INCREMENT BY ").append(statement.getIncrementBy());
+            }
+        }
+        return new Sql[]{new UnparsedSql(queryStringBuilder.toString(), getAffectedSequence(statement))};
+    }
+}

liquibase-snowflake/src/main/resources/META-INF/services/liquibase.diff.output.changelog.ChangeGenerator

@@ -0,0 +1,2 @@
+liquibase.diff.output.changelog.core.ChangedSequenceChangeGeneratorSnowflake
+liquibase.diff.output.changelog.core.MissingSequenceChangeGeneratorSnowflake

liquibase-snowflake/src/main/resources/META-INF/services/liquibase.sqlgenerator.SqlGenerator

@@ -1,3 +1,4 @@
+liquibase.sqlgenerator.core.CreateSequenceGeneratorSnowflake
 liquibase.sqlgenerator.core.DropDefaultValueGeneratorSnowflake
 liquibase.sqlgenerator.core.DropProcedureGeneratorSnowflake
 liquibase.sqlgenerator.core.InsertOrUpdateGeneratorSnowflake