/**
* Returns a string representation of the index structure.
*
* @param all include database contents in the representation. During updates, database lookups
* must be avoided, as the data structures will be inconsistent.
* @return string
*/
public String toString(final boolean all) {
final TokenBuilder tb = new TokenBuilder();
tb.addExt(type).add(" INDEX, '").add(data.meta.name).add("':\n");
final int s = lenList.size();
for (int m = 1; m < s; m++) {
final int len = lenList.get(m);
if (len == 0) continue;
final int[] ids = idsList.get(m);
tb.add(" ").addInt(m);
if (all)
tb.add(", key: \"").add(data.text(data.pre(ids[0]), type == IndexType.TEXT)).add('"');
tb.add(", ids");
if (all) tb.add("/pres");
tb.add(": ");
for (int n = 0; n < len; n++) {
if (n != 0) tb.add(",");
tb.addInt(ids[n]);
if (all) tb.add('/').addInt(data.pre(ids[n]));
}
tb.add("\n");
}
return tb.toString();
}
/**
* Adds information on command execution.
*
* @param str information to be added
* @param ext extended info
* @return {@code true}
*/
protected final boolean info(final String str, final Object... ext) {
info.addExt(str, ext).add(NL);
return true;
}
/**
* Adds the error message to the message buffer {@link #info}.
*
* @param msg error message
* @param ext error extension
* @return {@code false}
*/
protected final boolean error(final String msg, final Object... ext) {
info.reset();
info.addExt(msg == null ? "" : msg, ext);
return false;
}