AbstractCassandraSchemaConverter (Stargate - Coordinator

java.lang.Object
- io.stargate.db.datastore.common.AbstractCassandraSchemaConverter<K,T,C,U,I,V>

Type Parameters:

K - the concrete class for keyspace metadata in the persistence layer.

T - the concrete class for table metadata in the persistence layer.

C - the concrete class for column metadata in the persistence layer.

U - the concrete class for user types in the persistence layer.

I - the concrete class for secondary indexes metadata in the persistence layer.

V - the concrete class for materialized views metadata in the persistence layer.
```
public abstract class AbstractCassandraSchemaConverter<K,T,C,U,I,V>
extends Object
```
Helps, for a Cassandra-like persistence module, the writing of a converter between internal schema classes and Stargate schema ones.
Note that this class has no interesting logic, as it cannot make much assumption on the concrete classes of the schema entities in the persistence layer. Its only goal is to save some boilerplate code when writing such converter.

Constructor Summary

Constructors
Constructor and Description

AbstractCassandraSchemaConverter()

Constructors
Constructor and Description
`AbstractCassandraSchemaConverter()`

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`protected abstract T`	`asTable(V view)` The internal "table" metadata class of the provided internal materialized view.
`protected abstract Column.Order`	`columnClusteringOrder(C column)` The clustering order of the provided internal column;
`protected abstract Column.Kind`	`columnKind(C column)` The kind of the provided internal column.
`protected abstract String`	`columnName(C column)` The (unquoted) name of the provided internal column.
`protected abstract Iterable<C>`	`columns(T table)` The internal columns of the internal table.
`protected abstract Column.ColumnType`	`columnType(C column)` The type of the provided internal column.
`protected abstract String`	`comment(T table)` The comment on the provided internal table.
`Schema`	`convertCassandraSchema(Iterable<K> cassandraKeyspaces)`
`protected abstract Set<String>`	`getExcludedIndexOptions()` The excluded name of the provided internal keyspace.
`protected abstract String`	`indexClass(I index)` The index class of the given custom index
`protected abstract String`	`indexName(I index)` The (unquoted) name of the provided internal index.
`protected abstract Map<String,String>`	`indexOptions(I index)` The index options of the given custom index
`protected abstract String`	`indexTarget(I index)` The target of the provided internal index, that is the content of it's "target" option.
`protected abstract boolean`	`isBaseTableOf(T table, V view)` Whether the provided table is the base table of the provided view.
`protected abstract boolean`	`isCustom(I index)` Whether the given index is of the "CUSTOM" kind.
`protected abstract String`	`keyspaceName(K keyspace)` The (unquoted) name of the provided internal keyspace.
`protected abstract Map<String,String>`	`replicationOptions(K keyspace)` The replication options of the provided internal keyspace.
`protected abstract Iterable<I>`	`secondaryIndexes(T table)` The (internal) 2ndary indexes of provided internal table.
`protected abstract String`	`tableName(T table)` The (unquoted) name of the provided internal table.
`protected abstract Iterable<T>`	`tables(K keyspace)` The internal tables of the provided internal keyspace.
`protected abstract int`	`ttl(T table)` The TTL on the provided internal table.
`protected abstract List<Column>`	`userTypeFields(U userType)` Returns the fields of the provided internal user type as columns (of kind `Column.Kind#Regular`).
`protected abstract String`	`userTypeName(U userType)` The name of the provided internal user type.
`protected abstract Iterable<U>`	`userTypes(K keyspace)` The internal user types of the provided internal keyspace.
`protected abstract boolean`	`usesDurableWrites(K keyspace)` Whether the provided internal keyspace uses durable writes.
`protected abstract Iterable<V>`	`views(K keyspace)` The internal materialized views of the provided internal keyspace.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - AbstractCassandraSchemaConverter
```
public AbstractCassandraSchemaConverter()
```
- Method Detail
  - getExcludedIndexOptions
```
protected abstract Set<String> getExcludedIndexOptions()
```
    The excluded name of the provided internal keyspace.
  - keyspaceName
```
protected abstract String keyspaceName(K keyspace)
```
    The (unquoted) name of the provided internal keyspace.
  - replicationOptions
```
protected abstract Map<String,String> replicationOptions(K keyspace)
```
    The replication options of the provided internal keyspace.
  - usesDurableWrites
```
protected abstract boolean usesDurableWrites(K keyspace)
```
    Whether the provided internal keyspace uses durable writes.
  - tables
```
protected abstract Iterable<T> tables(K keyspace)
```
    The internal tables of the provided internal keyspace.
  - userTypes
```
protected abstract Iterable<U> userTypes(K keyspace)
```
    The internal user types of the provided internal keyspace.
  - views
```
protected abstract Iterable<V> views(K keyspace)
```
    The internal materialized views of the provided internal keyspace.
  - tableName
```
protected abstract String tableName(T table)
```
    The (unquoted) name of the provided internal table.
  - columns
```
protected abstract Iterable<C> columns(T table)
```
    The internal columns of the internal table.
  - columnName
```
protected abstract String columnName(C column)
```
    The (unquoted) name of the provided internal column.
  - columnType
```
protected abstract Column.ColumnType columnType(C column)
```
    The type of the provided internal column.
  - columnClusteringOrder
```
protected abstract Column.Order columnClusteringOrder(C column)
```
    The clustering order of the provided internal column;
  - columnKind
```
protected abstract Column.Kind columnKind(C column)
```
    The kind of the provided internal column.
  - secondaryIndexes
```
protected abstract Iterable<I> secondaryIndexes(T table)
```
    The (internal) 2ndary indexes of provided internal table.
  - comment
```
protected abstract String comment(T table)
```
    The comment on the provided internal table. *
  - ttl
```
protected abstract int ttl(T table)
```
    The TTL on the provided internal table. *
  - indexName
```
protected abstract String indexName(I index)
```
    The (unquoted) name of the provided internal index.
  - indexTarget
```
protected abstract String indexTarget(I index)
```
    The target of the provided internal index, that is the content of it's "target" option.
  - isCustom
```
protected abstract boolean isCustom(I index)
```
    Whether the given index is of the "CUSTOM" kind.
  - indexClass
```
protected abstract String indexClass(I index)
```
    The index class of the given custom index
  - indexOptions
```
protected abstract Map<String,String> indexOptions(I index)
```
    The index options of the given custom index
  - userTypeFields
```
protected abstract List<Column> userTypeFields(U userType)
```
    Returns the fields of the provided internal user type as columns (of kind Column.Kind#Regular).
  - userTypeName
```
protected abstract String userTypeName(U userType)
```
    The name of the provided internal user type.
  - asTable
```
protected abstract T asTable(V view)
```
    The internal "table" metadata class of the provided internal materialized view.
  - isBaseTableOf
```
protected abstract boolean isBaseTableOf(T table,
                                         V view)
```
    Whether the provided table is the base table of the provided view.
  - convertCassandraSchema
```
public Schema convertCassandraSchema(Iterable<K> cassandraKeyspaces)
```

Class AbstractCassandraSchemaConverter<K,T,C,U,I,V>

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Constructor Detail

AbstractCassandraSchemaConverter

Method Detail

getExcludedIndexOptions

keyspaceName

replicationOptions

usesDurableWrites

tables

userTypes

views

tableName

columns

columnName

columnType

columnClusteringOrder

columnKind

secondaryIndexes

comment

ttl

indexName

indexTarget

isCustom

indexClass

indexOptions

userTypeFields

userTypeName

asTable

isBaseTableOf

convertCassandraSchema