package org.basex.query.up.primitives;
import org.basex.data.Data;
import org.basex.query.iter.NodeCache;
import org.basex.util.InputInfo;
/**
* Insert before primitive.
*
* @author BaseX Team 2005-12, BSD License
* @author Lukas Kircher
*/
public final class InsertBefore extends InsertBase {
/**
* Constructor.
* @param p pre
* @param d data
* @param i input info
* @param c node copy
*/
public InsertBefore(final int p, final Data d, final InputInfo i,
final NodeCache c) {
super(PrimitiveType.INSERTBEFORE, p, d, i, c);
}
@Override
public void apply() {
super.apply();
data.insert(pre, data.parent(pre, data.kind(pre)), md);
}
@Override
public boolean adjacentTexts(final int c) {
final int p = pre + c;
boolean merged = false;
final int mds = md.meta.size;
if(md.kind(0) == Data.TEXT)
merged = mergeTexts(data, p - 1, p);
if(!merged && md.kind(mds - 1) == Data.TEXT)
merged |= mergeTexts(data, p + mds - 1, p + mds);
return merged;
}
}