Example usage for org.hibernate.mapping ForeignKey sqlConstraintString

Introduction

In this page you can find the example usage for org.hibernate.mapping ForeignKey sqlConstraintString.

Prototype

public String sqlConstraintString(Dialect dialect, String constraintName, String defaultCatalog,
            String defaultSchema) 

Source Link

Usage

From source file:net.lshift.hibernate.migrations.AlterTableBuilder.java

License:Apache License

public AlterTableBuilder addForeignKey(String name, String[] columnNames, String referencedTable,
        String[] referencedColumns) {
    ForeignKey fk = new ForeignKey();
    fk.setName(name);/*  w ww . ja  v a 2s.  c om*/
    for (String col : columnNames)
        fk.addColumn(new Column(col));
    fk.setTable(new Table(table));

    PrimaryKey refPrimaryKey = new PrimaryKey();
    for (String col : referencedColumns)
        refPrimaryKey.addColumn(new Column(col));
    Table refTable = new Table(referencedTable);
    refTable.setPrimaryKey(refPrimaryKey);

    fk.setReferencedTable(refTable);

    String defaultCatalog = config.getProperties().getProperty(Environment.DEFAULT_CATALOG);
    String defaultSchema = config.getProperties().getProperty(Environment.DEFAULT_SCHEMA);

    // fk.sqlConstraintString appears to generate incorrect SQL against MySQL in some instances.
    // The referenced columns are not always correctly listed.
    //    alterFragments.add(" add index " + fk.getName() + " (" + StringHelper.join(", ", columnNames) +
    //        "), add constraint " + fk.getName() + " foreign key (" + StringHelper.join(", ", columnNames) +
    //        " references " + referencedTable + " (" + StringHelper.join(", ", referencedColumns) + ")");
    alterFragments.add(fk.sqlConstraintString(dialect, fk.getName(), defaultCatalog, defaultSchema));
    return this;
}

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