Examples with JoinTreeNode org.apache.cayenne.access.translator.select.JoinTreeNode used on opensource projects

Example 6 with JoinTreeNode

use of org.apache.cayenne.access.translator.select.JoinTreeNode in project cayenne by apache.

the class Oracle8JoinStack method appendQualifierSubtree.

protected void appendQualifierSubtree(StringBuilder out, JoinTreeNode node) {
    DbRelationship relationship = node.getRelationship();
    String srcAlias = node.getSourceTableAlias();
    String targetAlias = node.getTargetTableAlias();
    List<DbJoin> joins = relationship.getJoins();
    int len = joins.size();
    for (int i = 0; i < len; i++) {
        DbJoin join = joins.get(i);
        if (i > 0) {
            out.append(" AND ");
        }
        out.append(srcAlias).append('.').append(join.getSourceName());
        switch(node.getJoinType()) {
            case INNER:
                out.append(" = ");
                break;
            case LEFT_OUTER:
                out.append(" * ");
                break;
            default:
                throw new IllegalArgumentException("Unsupported join type: " + node.getJoinType());
        }
        out.append(targetAlias).append('.').append(join.getTargetName());
    }
    for (JoinTreeNode child : node.getChildren()) {
        out.append(" AND ");
        appendQualifierSubtree(out, child);
    }
}