1 | |
package liquibase.sqlgenerator.core; |
2 | |
|
3 | |
import liquibase.database.Database; |
4 | |
import liquibase.database.core.OracleDatabase; |
5 | |
import liquibase.exception.DatabaseException; |
6 | |
import liquibase.exception.UnexpectedLiquibaseException; |
7 | |
import liquibase.exception.ValidationErrors; |
8 | |
import liquibase.sql.Sql; |
9 | |
import liquibase.sql.UnparsedSql; |
10 | |
import liquibase.sqlgenerator.SqlGenerator; |
11 | |
import liquibase.sqlgenerator.SqlGeneratorChain; |
12 | |
import liquibase.statement.core.FindForeignKeyConstraintsStatement; |
13 | |
|
14 | 12 | public class FindForeignKeyConstraintsGeneratorOracle extends AbstractSqlGenerator<FindForeignKeyConstraintsStatement> { |
15 | |
@Override |
16 | |
public int getPriority() { |
17 | 1 | return PRIORITY_DATABASE; |
18 | |
} |
19 | |
|
20 | |
@Override |
21 | |
public boolean supports(FindForeignKeyConstraintsStatement statement, Database database) { |
22 | 2 | return database instanceof OracleDatabase; |
23 | |
} |
24 | |
|
25 | |
public ValidationErrors validate(FindForeignKeyConstraintsStatement findForeignKeyConstraintsStatement, |
26 | |
Database database, SqlGeneratorChain sqlGeneratorChain) { |
27 | 0 | ValidationErrors validationErrors = new ValidationErrors(); |
28 | 0 | validationErrors.checkRequiredField("baseTableName", findForeignKeyConstraintsStatement.getBaseTableName()); |
29 | 0 | return validationErrors; |
30 | |
} |
31 | |
|
32 | |
public Sql[] generateSql(FindForeignKeyConstraintsStatement statement, Database database, |
33 | |
SqlGeneratorChain sqlGeneratorChain) { |
34 | 0 | StringBuilder sb = new StringBuilder(); |
35 | |
|
36 | 0 | sb.append("SELECT "); |
37 | 0 | sb.append("BASE.TABLE_NAME as ").append(FindForeignKeyConstraintsStatement.RESULT_COLUMN_BASE_TABLE_NAME) |
38 | |
.append(", "); |
39 | 0 | sb.append("BCOLS.COLUMN_NAME as ") |
40 | |
.append(FindForeignKeyConstraintsStatement.RESULT_COLUMN_BASE_TABLE_COLUMN_NAME).append(", "); |
41 | 0 | sb.append("FRGN.TABLE_NAME ").append(FindForeignKeyConstraintsStatement.RESULT_COLUMN_FOREIGN_TABLE_NAME) |
42 | |
.append(", "); |
43 | 0 | sb.append("FCOLS.COLUMN_NAME as ").append(FindForeignKeyConstraintsStatement.RESULT_COLUMN_FOREIGN_COLUMN_NAME) |
44 | |
.append(", "); |
45 | 0 | sb.append("BASE.CONSTRAINT_NAME as ").append(FindForeignKeyConstraintsStatement.RESULT_COLUMN_CONSTRAINT_NAME) |
46 | |
.append(" "); |
47 | 0 | sb.append("FROM ALL_CONSTRAINTS BASE,"); |
48 | 0 | sb.append(" ALL_CONSTRAINTS FRGN,"); |
49 | 0 | sb.append(" ALL_CONS_COLUMNS BCOLS,"); |
50 | 0 | sb.append(" ALL_CONS_COLUMNS FCOLS "); |
51 | 0 | sb.append("WHERE BASE.R_OWNER = FRGN.OWNER "); |
52 | 0 | sb.append("AND BASE.R_CONSTRAINT_NAME = FRGN.CONSTRAINT_NAME "); |
53 | 0 | sb.append("AND BASE.OWNER = BCOLS.OWNER "); |
54 | 0 | sb.append("AND BASE.CONSTRAINT_NAME = BCOLS.CONSTRAINT_NAME "); |
55 | 0 | sb.append("AND FRGN.OWNER = FCOLS.OWNER "); |
56 | 0 | sb.append("AND FRGN.CONSTRAINT_NAME = FCOLS.CONSTRAINT_NAME "); |
57 | 0 | sb.append("AND BASE.TABLE_NAME = '").append(statement.getBaseTableName().toUpperCase()).append("' "); |
58 | 0 | sb.append("AND BASE.CONSTRAINT_TYPE = 'R' "); |
59 | |
try { |
60 | 0 | sb.append("AND BASE.OWNER = '") |
61 | |
.append(database.convertRequestedSchemaToSchema(statement.getBaseTableSchemaName())).append("'"); |
62 | 0 | } catch (DatabaseException e) { |
63 | 0 | throw new UnexpectedLiquibaseException(e); |
64 | 0 | } |
65 | |
|
66 | 0 | return new Sql[] { new UnparsedSql(sb.toString()) }; |
67 | |
} |
68 | |
} |