Mega Code Archive
Insert value to array
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/*
* dbXML - Native XML Database
* Copyright (C) 1999-2004 The dbXML Group, L.L.C.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
* $Id: Array.java,v 1.2 2004/02/12 00:17:58 bradford Exp $
*/
/**
* Array utility methods
*/
public final class Array {
private Array() {
}
public static Object[] insertArrayObject(Object[] vals, Object val, int idx) {
Object[] newVals = new Object[vals.length + 1];
if ( idx > 0 )
System.arraycopy(vals, 0, newVals, 0, idx);
newVals[idx] = val;
if ( idx < vals.length )
System.arraycopy(vals, idx, newVals, idx + 1, vals.length - idx);
return newVals;
}
public static Object[] deleteArrayObject(Object[] vals, int idx) {
Object[] newVals = new Object[vals.length - 1];
if ( idx > 0 )
System.arraycopy(vals, 0, newVals, 0, idx);
if ( idx < newVals.length )
System.arraycopy(vals, idx + 1, newVals, idx, newVals.length - idx);
return newVals;
}
public static long[] insertArrayLong(long[] vals, long val, int idx) {
long[] newVals = new long[vals.length + 1];
if ( idx > 0 )
System.arraycopy(vals, 0, newVals, 0, idx);
newVals[idx] = val;
if ( idx < vals.length )
System.arraycopy(vals, idx, newVals, idx + 1, vals.length - idx);
return newVals;
}
public static long[] deleteArrayLong(long[] vals, int idx) {
long[] newVals = new long[vals.length - 1];
if ( idx > 0 )
System.arraycopy(vals, 0, newVals, 0, idx);
if ( idx < newVals.length )
System.arraycopy(vals, idx + 1, newVals, idx, newVals.length - idx);
return newVals;
}
public static int[] insertArrayInt(int[] vals, int val, int idx) {
int[] newVals = new int[vals.length + 1];
if ( idx > 0 )
System.arraycopy(vals, 0, newVals, 0, idx);
newVals[idx] = val;
if ( idx < vals.length )
System.arraycopy(vals, idx, newVals, idx + 1, vals.length - idx);
return newVals;
}
public static int[] deleteArrayInt(int[] vals, int idx) {
int[] newVals = new int[vals.length - 1];
if ( idx > 0 )
System.arraycopy(vals, 0, newVals, 0, idx);
if ( idx < newVals.length )
System.arraycopy(vals, idx + 1, newVals, idx, newVals.length - idx);
return newVals;
}
public static short[] insertArrayShort(short[] vals, short val, int idx) {
short[] newVals = new short[vals.length + 1];
if ( idx > 0 )
System.arraycopy(vals, 0, newVals, 0, idx);
newVals[idx] = val;
if ( idx < vals.length )
System.arraycopy(vals, idx, newVals, idx + 1, vals.length - idx);
return newVals;
}
public static short[] deleteArrayShort(short[] vals, int idx) {
short[] newVals = new short[vals.length - 1];
if ( idx > 0 )
System.arraycopy(vals, 0, newVals, 0, idx);
if ( idx < newVals.length )
System.arraycopy(vals, idx + 1, newVals, idx, newVals.length - idx);
return newVals;
}
}
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