Examples of cc.redberry.core.context.NameDescriptorForSimpleTensor

cc.redberry.core.context.NameDescriptorForSimpleTensor
Implementation of {@link NameDescriptor} for any simple tensor, except Kronecker and metric tensor. @author Dmitry Bolotin @author Stanislav Poslavsky @since 1.1

    public static SimpleTensor simpleTensor(String name, SimpleIndices indices) {
        NameDescriptor descriptor = CC.getNameManager().mapNameDescriptor(name, indices.getStructureOfIndices());
        if (indices.size() == 0) {
            assert indices == IndicesFactory.EMPTY_SIMPLE_INDICES;


            NameDescriptorForSimpleTensor nst = (NameDescriptorForSimpleTensor) descriptor;
            if (nst.getCachedSymbol() == null) {
                SimpleTensor st;
                nst.setCachedInstance(st = new SimpleTensor(descriptor.getId(), indices));
                return st;
            } else
                return nst.getCachedSymbol();
        }
        return new SimpleTensor(descriptor.getId(),
                UnsafeIndicesFactory.createOfTensor(descriptor.getSymmetries(),
                        indices));
    }

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            throw new IllegalArgumentException("Specified indices ( " + indices + " )are not indices of specified tensor ( " + descriptor + " ).");


        if (indices.size() == 0) {
            assert indices == IndicesFactory.EMPTY_SIMPLE_INDICES;


            NameDescriptorForSimpleTensor nst = (NameDescriptorForSimpleTensor) descriptor;
            if (nst.getCachedSymbol() == null) {
                SimpleTensor st;
                nst.setCachedInstance(st = new SimpleTensor(descriptor.getId(), indices));
                return st;
            } else
                return nst.getCachedSymbol();
        }


        return new SimpleTensor(name,
                UnsafeIndicesFactory.createOfTensor(descriptor.getSymmetries(),
                        indices));

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    public static SimpleTensor simpleTensor(String name, SimpleIndices indices) {
        NameDescriptor descriptor = CC.getNameManager().mapNameDescriptor(name, indices.getStructureOfIndices());
        if (indices.size() == 0) {
            assert indices == IndicesFactory.EMPTY_SIMPLE_INDICES;


            NameDescriptorForSimpleTensor nst = (NameDescriptorForSimpleTensor) descriptor;
            if (nst.getCachedSymbol() == null) {
                SimpleTensor st;
                nst.setCachedInstance(st = new SimpleTensor(descriptor.getId(), indices));
                return st;
            } else
                return nst.getCachedSymbol();
        }
        return new SimpleTensor(descriptor.getId(),
                UnsafeIndicesFactory.createOfTensor(descriptor.getSymmetries(),
                        indices));
    }

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            throw new IllegalArgumentException("Specified indices are not indices of specified tensor.");


        if (indices.size() == 0) {
            assert indices == IndicesFactory.EMPTY_SIMPLE_INDICES;


            NameDescriptorForSimpleTensor nst = (NameDescriptorForSimpleTensor) descriptor;
            if (nst.getCachedSymbol() == null) {
                SimpleTensor st;
                nst.setCachedInstance(st = new SimpleTensor(descriptor.getId(), indices));
                return st;
            } else
                return nst.getCachedSymbol();
        }


        return new SimpleTensor(name,
                UnsafeIndicesFactory.createOfTensor(descriptor.getSymmetries(),
                        indices));

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Related Classes of cc.redberry.core.context.NameDescriptorForSimpleTensor

cc.redberry.core.tensor.Tensors

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