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An OSGi bundle for Saxon-HE
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2013 Saxonica Limited.
// This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
// If a copy of the MPL was not distributed with this file, You can obtain one at http://mozilla.org/MPL/2.0/.
// This Source Code Form is "Incompatible With Secondary Licenses", as defined by the Mozilla Public License, v. 2.0.
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
package net.sf.saxon.expr.instruct;
import net.sf.saxon.om.Sequence;
import net.sf.saxon.trans.XPathException;
import net.sf.saxon.value.Closure;
/**
* A ParameterSet is a set of parameters supplied when calling a template.
* It is a collection of id-value pairs, the ids being numeric aliases for the parameter name,
* unique within a stylesheet
*/
public class ParameterSet {
private int[] keys;
private Sequence[] values;
private boolean[] typeChecked;
private int used = 0;
public static ParameterSet EMPTY_PARAMETER_SET = new ParameterSet(0);
/**
* Create an empty parameter set
*/
public ParameterSet() {
this(10);
}
/**
* Create a parameter set specifying the initial capacity
* @param capacity the nominal number of entries in the parameter set
*/
public ParameterSet(int capacity) {
keys = new int[capacity];
values = new Sequence[capacity];
typeChecked = new boolean[capacity];
}
/**
* Create a parameter set as a copy of an existing parameter set
* @param existing the parameter set to be copied
* @param extra the space to be allocated for additional entries
*/
public ParameterSet(ParameterSet existing, int extra) {
this(existing.used + extra);
for (int i=0; i keys.length) {
int newlength = (used<=5 ? 10 : used*2);
int[] newkeys = new int[newlength];
boolean[] newChecked = new boolean[newlength];
Sequence[] newvalues = new Sequence[newlength];
System.arraycopy(values, 0, newvalues, 0, used);
System.arraycopy(keys, 0, newkeys, 0, used);
System.arraycopy(typeChecked, 0, newChecked, 0, used);
values = newvalues;
keys = newkeys;
typeChecked = newChecked;
}
keys[used] = id;
typeChecked[used] = checked;
values[used++] = value;
}
/**
* Get the index position of a parameter
*
* @param id The numeric parameter id, representing its name.
* @return The index position of the parameter, or -1 if not defined
*/
public int getIndex (int id) {
for (int i=0; i