Package org.lealone.dbobject.constraint

Examples of org.lealone.dbobject.constraint.Constraint

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        constraintName = string;
    }

    public int update() {
        session.commit(true);
        Constraint constraint = getSchema().findConstraint(session, constraintName);
        if (constraint == null) {
            if (!ifExists) {
                throw DbException.get(ErrorCode.CONSTRAINT_NOT_FOUND_1, constraintName);
            }
        } else {
            session.getUser().checkRight(constraint.getTable(), Right.ALL);
            session.getUser().checkRight(constraint.getRefTable(), Right.ALL);
            session.getDatabase().removeSchemaObject(session, constraint);
        }
        return 0;
    }
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            });
            for (SchemaObject obj : constraints) {
                if (excludeSchema(obj.getSchema())) {
                    continue;
                }
                Constraint constraint = (Constraint) obj;
                if (excludeTable(constraint.getTable())) {
                    continue;
                }
                if (constraint.getTable().isHidden()) {
                    continue;
                }
                if (!Constraint.PRIMARY_KEY.equals(constraint.getConstraintType())) {
                    add(constraint.getCreateSQLWithoutIndexes(), false);
                }
            }
            // Generate CREATE TRIGGER ...
            for (SchemaObject obj : db.getAllSchemaObjects(DbObject.TRIGGER)) {
                if (excludeSchema(obj.getSchema())) {
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            throw DbException.get(ErrorCode.CONSTRAINT_ALREADY_EXISTS_1, constraintName);
        }
        session.getUser().checkRight(table, Right.ALL);
        db.lockMeta(session);
        table.lock(session, true, true);
        Constraint constraint;
        switch (type) {
        case CommandInterface.ALTER_TABLE_ADD_CONSTRAINT_PRIMARY_KEY: {
            IndexColumn.mapColumns(indexColumns, table);
            index = table.findPrimaryKey();
            ArrayList<Constraint> constraints = table.getConstraints();
            for (int i = 0; constraints != null && i < constraints.size(); i++) {
                Constraint c = constraints.get(i);
                if (Constraint.PRIMARY_KEY.equals(c.getConstraintType())) {
                    throw DbException.get(ErrorCode.SECOND_PRIMARY_KEY);
                }
            }
            if (index != null) {
                // if there is an index, it must match with the one declared
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                throw DbException.get(ErrorCode.INDEX_NOT_FOUND_1, indexName);
            }
        } else {
            Table table = index.getTable();
            session.getUser().checkRight(index.getTable(), Right.ALL);
            Constraint pkConstraint = null;
            ArrayList<Constraint> constraints = table.getConstraints();
            for (int i = 0; constraints != null && i < constraints.size(); i++) {
                Constraint cons = constraints.get(i);
                if (cons.usesIndex(index)) {
                    // can drop primary key index (for compatibility)
                    if (Constraint.PRIMARY_KEY.equals(cons.getConstraintType())) {
                        pkConstraint = cons;
                    } else {
                        throw DbException.get(ErrorCode.INDEX_BELONGS_TO_CONSTRAINT_1, indexName);
                    }
                }
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Related Classes of org.lealone.dbobject.constraint.Constraint

  • org.lealone.command.ddl.AlterTableAddConstraint
  • org.lealone.command.ddl.AlterTableDropConstraint
  • org.lealone.command.ddl.DropIndex
  • org.lealone.command.dml.ScriptCommand
  • org.lealone.dbobject.Schema
  • org.lealone.dbobject.table.MetaTable
  • org.lealone.dbobject.table.Table
  • org.lealone.dbobject.table.TableBase
  • org.lealone.engine.Database
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