Package gudusoft.gsqlparser.ext.calcite.catalog

Interface Catalog

All Known Implementing Classes:
SimpleCatalog
public interface Catalog
Represents a database catalog containing schemas, tables, and columns.

A catalog is the top-level container in the database metadata hierarchy: 

 Catalog
   └── Schema
         └── Table
               └── Column

This is a standalone version that can be used independently of Apache Calcite.

  • Method Details

    • getName

      String getName()
      Returns the name of the catalog.
      Returns:
      Catalog name

    • getSchemas

      List<Schema> getSchemas()
      Returns all schemas in this catalog.
      Returns:
      List of schemas

    • getSchema

      @Nullable Schema getSchema(String schemaName)
      Returns a schema by name, or null if not found.
      Parameters:
      schemaName - Schema name (case-sensitive)
      Returns:
      Schema, or null

    • getSchemaNames

      List<String> getSchemaNames()
      Returns all schema names in this catalog.
      Returns:
      List of schema names

    • getTable

      @Nullable Table getTable(String schemaName, String tableName)
      Returns a table by qualified name (schema.table), or null if not found.
      Parameters:
      schemaName - Schema name
      tableName - Table name
      Returns:
      Table, or null

    • getDefaultSchemaName

      @Nullable String getDefaultSchemaName()
      Returns the default schema name, or null if not set.
      Returns:
      Default schema name, or null