Java XSModelGroupImpl.MODELGROUP_SEQUENCE属性代码示例

private static XSParticleDecl getErrorContent() {
    if (fErrorContent == null) {
        XSParticleDecl particle = new XSParticleDecl();
        particle.fType = XSParticleDecl.PARTICLE_WILDCARD;
        particle.fValue = getErrorWildcard();
        particle.fMinOccurs = 0;
        particle.fMaxOccurs = SchemaSymbols.OCCURRENCE_UNBOUNDED;
        XSModelGroupImpl group = new XSModelGroupImpl();
        group.fCompositor = XSModelGroupImpl.MODELGROUP_SEQUENCE;
        group.fParticleCount = 1;
        group.fParticles = new XSParticleDecl[1];
        group.fParticles[0] = particle;
        XSParticleDecl errorContent = new XSParticleDecl();
        errorContent.fType = XSParticleDecl.PARTICLE_MODELGROUP;
        errorContent.fValue = group;
        fErrorContent = errorContent;
    }
    return fErrorContent;
}
 

protected void calcFirstPos(CMStateSet toSet) {
    if (type() == XSModelGroupImpl.MODELGROUP_CHOICE) {
        // Its the the union of the first positions of our children.
        toSet.setTo(fLeftChild.firstPos());
        toSet.union(fRightChild.firstPos());
    }
     else if (type() == XSModelGroupImpl.MODELGROUP_SEQUENCE) {
        //
        //  If our left child is nullable, then its the union of our
        //  children's first positions. Else is our left child's first
        //  positions.
        //
        toSet.setTo(fLeftChild.firstPos());
        if (fLeftChild.isNullable())
            toSet.union(fRightChild.firstPos());
    }
     else {
        throw new RuntimeException("ImplementationMessages.VAL_BST");
    }
}
 

protected void calcLastPos(CMStateSet toSet) {
    if (type() == XSModelGroupImpl.MODELGROUP_CHOICE) {
        // Its the the union of the first positions of our children.
        toSet.setTo(fLeftChild.lastPos());
        toSet.union(fRightChild.lastPos());
    }
    else if (type() == XSModelGroupImpl.MODELGROUP_SEQUENCE) {
        //
        //  If our right child is nullable, then its the union of our
        //  children's last positions. Else is our right child's last
        //  positions.
        //
        toSet.setTo(fRightChild.lastPos());
        if (fRightChild.isNullable())
            toSet.union(fLeftChild.lastPos());
    }
    else {
        throw new RuntimeException("ImplementationMessages.VAL_BST");
    }
}
 

private CMNode copyNode(CMNode node) {
    int type = node.type();
    // for choice or sequence, copy the two subtrees, and combine them
    if (type == XSModelGroupImpl.MODELGROUP_CHOICE ||
        type == XSModelGroupImpl.MODELGROUP_SEQUENCE) {
        XSCMBinOp bin = (XSCMBinOp)node;
        node = fNodeFactory.getCMBinOpNode(type, copyNode(bin.getLeft()),
                             copyNode(bin.getRight()));
    }
    // for ?+*, copy the subtree, and put it in a new ?+* node
    else if (type == XSParticleDecl.PARTICLE_ZERO_OR_MORE ||
             type == XSParticleDecl.PARTICLE_ONE_OR_MORE ||
             type == XSParticleDecl.PARTICLE_ZERO_OR_ONE) {
        XSCMUniOp uni = (XSCMUniOp)node;
        node = fNodeFactory.getCMUniOpNode(type, copyNode(uni.getChild()));
    }
    // for element/wildcard (leaf), make a new leaf node,
    // with a distinct position
    else if (type == XSParticleDecl.PARTICLE_ELEMENT ||
             type == XSParticleDecl.PARTICLE_WILDCARD) {
        XSCMLeaf leaf = (XSCMLeaf)node;
        node = fNodeFactory.getCMLeafNode(leaf.type(), leaf.getLeaf(), leaf.getParticleId(), fLeafCount++);
    }

    return node;
}
 

public XSCMBinOp(int type, CMNode leftNode, CMNode rightNode)
{
    super(type);

    // Insure that its one of the types we require
    if ((type() != XSModelGroupImpl.MODELGROUP_CHOICE)
    &&  (type() != XSModelGroupImpl.MODELGROUP_SEQUENCE)) {
        throw new RuntimeException("ImplementationMessages.VAL_BST");
    }

    // Store the nodes and init any data that needs it
    fLeftChild = leftNode;
    fRightChild = rightNode;
}
 

public boolean isNullable() {
    //
    //  If its an alternation, then if either child is nullable then
    //  this node is nullable. If its a concatenation, then both of
    //  them have to be nullable.
    //
    if (type() == XSModelGroupImpl.MODELGROUP_CHOICE)
        return (fLeftChild.isNullable() || fRightChild.isNullable());
    else if (type() == XSModelGroupImpl.MODELGROUP_SEQUENCE)
        return (fLeftChild.isNullable() && fRightChild.isNullable());
    else
        throw new RuntimeException("ImplementationMessages.VAL_BST");
}
 

/** Post tree build initialization. */
private void postTreeBuildInit(CMNode nodeCur) throws RuntimeException {
    // Set the maximum states on this node
    nodeCur.setMaxStates(fLeafCount);

    XSCMLeaf leaf = null;
    int pos = 0;
    // Recurse as required
    if (nodeCur.type() == XSParticleDecl.PARTICLE_WILDCARD) {
        leaf = (XSCMLeaf)nodeCur;
        pos = leaf.getPosition();
        fLeafList[pos] = leaf;
        fLeafListType[pos] = XSParticleDecl.PARTICLE_WILDCARD;
    }
    else if ((nodeCur.type() == XSModelGroupImpl.MODELGROUP_CHOICE) ||
             (nodeCur.type() == XSModelGroupImpl.MODELGROUP_SEQUENCE)) {
        postTreeBuildInit(((XSCMBinOp)nodeCur).getLeft());
        postTreeBuildInit(((XSCMBinOp)nodeCur).getRight());
    }
    else if (nodeCur.type() == XSParticleDecl.PARTICLE_ZERO_OR_MORE ||
             nodeCur.type() == XSParticleDecl.PARTICLE_ONE_OR_MORE ||
             nodeCur.type() == XSParticleDecl.PARTICLE_ZERO_OR_ONE) {
        postTreeBuildInit(((XSCMUniOp)nodeCur).getChild());
    }
    else if (nodeCur.type() == XSParticleDecl.PARTICLE_ELEMENT) {
        //  Put this node in the leaf list at the current index if its
        //  a non-epsilon leaf.
        leaf = (XSCMLeaf)nodeCur;
        pos = leaf.getPosition();
        fLeafList[pos] = leaf;
        fLeafListType[pos] = XSParticleDecl.PARTICLE_ELEMENT;
    }
    else {
        throw new RuntimeException("ImplementationMessages.VAL_NIICM");
    }
}