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Provides a basic XSLT 2.0 and XQuery 1.0 processor (W3C Recommendations, January 2007). Command line interfaces and implementations of several Java APIs (DOM, XPath, s9api) are also included.

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package net.sf.saxon.om;

/**
 * An implementation of the NamespaceDeclarations interface,
 * based on encapsulating an array of namespace codes.
 */

public class NamespaceDeclarationsImpl implements NamespaceDeclarations {

    private NamePool namePool;
    private int[] namespaceCodes;
    private int used;

    private static final int[] emptyArray = new int[0];

    /**
     * Create an uninitialized instance
     */
 
    public NamespaceDeclarationsImpl() {}

    /**
     * Construct a set of namespace declarations
     * @param pool the name pool
     * @param codes an integer array holding the namespace codes. These
     * codes are allocated by the name pool, and can be used to look up
     * a prefix and uri in the name pool. If the array contains the integer
     * -1, this acts as a terminator for the list. This is the format
     * returned by the method {@link NodeInfo#getDeclaredNamespaces(int[])}.
     * A value of null is equivalent to supplying an empty array.
     */

    public NamespaceDeclarationsImpl(NamePool pool, int[] codes) {
        namePool = pool;
        setNamespaceCodes(codes);
    }

    /**
     * Set the name pool
     * @param pool the NamePool
     */

    public void setNamePool(NamePool pool) {
        namePool = pool;
    }

    /**
     * Set the namespace codes.
     * @param codes an integer array holding the namespace codes. These
     * codes are allocated by the name pool, and can be used to look up
     * a prefix and uri in the name pool. If the array contains the integer
     * -1, this acts as a terminator for the list. This is the format
     * returned by the method {@link NodeInfo#getDeclaredNamespaces(int[])}.
     * A value of null is equivalent to supplying an empty array.
     */

    public void setNamespaceCodes(int[] codes) {
        if (codes == null) {
            codes = emptyArray;
        }
        namespaceCodes = codes;
        used = codes.length;
        for (int i=0; i