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Posted to commits@metamodel.apache.org by Apache Wiki <wi...@apache.org> on 2013/08/01 11:12:07 UTC
[Metamodel Wiki] Update of "examples/TraverseSchemaModel" by KasperSorensen
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The "examples/TraverseSchemaModel" page has been changed by KasperSorensen:
https://wiki.apache.org/metamodel/examples/TraverseSchemaModel
Comment:
Added traverse schema example
New page:
= Traverse schema model =
This example demonstrates traversing the schema model of a JDBC database connection:
{{{#!java
Connection con = ...
DataContext dataContext = DataContextFactory.createJdbcDataContext(con);
Schema[] schemas = dataContext.getSchemas();
// iterate through schemas
for (Schema schema : schemas) {
System.out.println(schema.getName());
Table[] tables = schema.getTables();
// iterate through tables
for (Table table : tables) {
System.out.println(" " + table.getName() + " (" + table.getType() + ")");
Column[] columns = table.getColumns();
// iterate through columns
for (Column column : columns) {
System.out.println(" " + column.getName() + " (" + column.getType() + "|" + column.getNativeType() + ")");
}
}
}
}}}
Run on an example PostgreSQL database this will print out:
{{{
information_schema
pg_catalog
pg_toast_temp_1
public
person (TABLE)
id (INTEGER|serial)
name (VARCHAR|text)
age (INTEGER|integer)
company_id (INTEGER|int4)
company (TABLE)
id (INTEGER|serial)
name (VARCHAR|text)
employments (VIEW)
employee_name (VARCHAR|text)
company_name (VARCHAR|text)
}}}
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CategoryExamples