Examples with MConstraint org.apache.hadoop.hive.metastore.model.MConstraint used on opensource projects

Example 21 with MConstraint

use of org.apache.hadoop.hive.metastore.model.MConstraint in project hive by apache.

the class ObjectStore method getNotNullConstraintsViaJdo.

private List<SQLNotNullConstraint> getNotNullConstraintsViaJdo(String catName, String dbName, String tblName) {
    boolean commited = false;
    List<SQLNotNullConstraint> notNullConstraints = null;
    Query query = null;
    try {
        openTransaction();
        query = pm.newQuery(MConstraint.class, "parentTable.tableName == tbl_name && parentTable.database.name == db_name &&" + " parentTable.database.catalogName == catName && constraintType == MConstraint.NOT_NULL_CONSTRAINT");
        query.declareParameters("java.lang.String tbl_name, java.lang.String db_name, java.lang.String catName");
        Collection<?> constraints = (Collection<?>) query.execute(tblName, dbName, catName);
        pm.retrieveAll(constraints);
        notNullConstraints = new ArrayList<>();
        for (Iterator<?> i = constraints.iterator(); i.hasNext(); ) {
            MConstraint currConstraint = (MConstraint) i.next();
            List<MFieldSchema> cols = currConstraint.getParentColumn() != null ? currConstraint.getParentColumn().getCols() : currConstraint.getParentTable().getPartitionKeys();
            int enableValidateRely = currConstraint.getEnableValidateRely();
            boolean enable = (enableValidateRely & 4) != 0;
            boolean validate = (enableValidateRely & 2) != 0;
            boolean rely = (enableValidateRely & 1) != 0;
            notNullConstraints.add(new SQLNotNullConstraint(catName, dbName, tblName, cols.get(currConstraint.getParentIntegerIndex()).getName(), currConstraint.getConstraintName(), enable, validate, rely));
        }
        commited = commitTransaction();
    } finally {
        rollbackAndCleanup(commited, query);
    }
    return notNullConstraints;
}