-// $Id: CQLBooleanNode.java,v 1.9 2002-11-20 01:15:14 mike Exp $
+// $Id: CQLBooleanNode.java,v 1.15 2007-06-29 10:21:30 mike Exp $
package org.z3950.zing.cql;
import java.util.Properties;
/**
* Represents a boolean node in a CQL parse-tree.
*
- * @version $Id: CQLBooleanNode.java,v 1.9 2002-11-20 01:15:14 mike Exp $
+ * @version $Id: CQLBooleanNode.java,v 1.15 2007-06-29 10:21:30 mike Exp $
*/
public abstract class CQLBooleanNode extends CQLNode {
- CQLBooleanNode() {} // prevent javadoc from documenting this
-
/**
* The root of a parse-tree representing the left-hand side.
*/
*/
public CQLNode right;
+ /**
+ * The set of modifiers that are applied to this boolean.
+ */
+ public ModifierSet ms;
+
+ protected CQLBooleanNode(CQLNode left, CQLNode right, ModifierSet ms) {
+ this.left = left;
+ this.right = right;
+ this.ms = ms;
+ }
+
public String toXCQL(int level, Vector prefixes) {
+ // ### Should this use CQLNode.toXCQL(level+2, prefixes)?
return (indent(level) + "<triple>\n" +
renderPrefixes(level+1, prefixes) +
- opXQL(level+1) +
+ ms.toXCQL(level+1, "boolean") +
indent(level+1) + "<leftOperand>\n" +
- left.toXCQL(level+2, new Vector()) +
+ left.toXCQL(level+2) +
indent(level+1) + "</leftOperand>\n" +
indent(level+1) + "<rightOperand>\n" +
- right.toXCQL(level+2, new Vector()) +
+ right.toXCQL(level+2) +
indent(level+1) + "</rightOperand>\n" +
indent(level) + "</triple>\n");
}
- // Represents the boolean operation itself: overridden for CQLProxNode
- String opXQL(int level) {
- return(indent(level) + "<boolean>\n" +
- indent(level+1) + "<value>" + op() + "</value>\n" +
- indent(level) + "</boolean>\n");
- }
-
public String toCQL() {
// ### We don't always need parens around the operands
return "(" + left.toCQL() + ") " + op() + " (" + right.toCQL() + ")";
String opPQF() { return op(); }
abstract String op();
+
+ public byte[] toType1BER(Properties config) throws PQFTranslationException {
+ System.out.println("in CQLBooleanNode.toType1BER(): PQF=" +
+ toPQF(config));
+ byte[] rpn1 = left.toType1BER(config);
+ byte[] rpn2 = right.toType1BER(config);
+ byte[] op = opType1();
+ byte[] rpnStructure = new byte[rpn1.length+rpn2.length+op.length+4];
+
+ // rpnRpnOp
+ int offset = putTag(CONTEXT, 1, CONSTRUCTED, rpnStructure, 0);
+
+ rpnStructure[offset++] = (byte)(0x80&0xff); // indefinite length
+ System.arraycopy(rpn1, 0, rpnStructure, offset, rpn1.length);
+ offset += rpn1.length;
+ System.arraycopy(rpn2, 0, rpnStructure, offset, rpn2.length);
+ offset += rpn2.length;
+ System.arraycopy(op, 0, rpnStructure, offset, op.length);
+ offset += op.length;
+ rpnStructure[offset++] = 0x00; // end rpnRpnOp
+ rpnStructure[offset++] = 0x00;
+ return rpnStructure;
+ }
+
+ abstract byte[] opType1();
}