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Statistical sampling library for use in virtdata libraries, based on apache commons math 4

There is a newer version: 5.17.0

package io.nosqlbench.virtdata.api;

/**
 * A thread-local template that describes a set of data mappers, a context object, and a method for applying
 * mapped values to the context object directly from the bindings. This type is used in thread-local scope
 * to map thread-specific data mapper instances to a contextual template object and a method for applying mapped values to it.
 *
 * This type is generally constructed by a ContextualDirectBindingsTemplate.
 *
 * @param  The type of the contextual template object.
 * @param  The resulting type from binding mapped values with the contextual template C
 */
public class ContextualBindings implements Binder {

    private final C context;
    private Bindings bindings;
    private ValuesBinder valuesBinder;

    public ContextualBindings(Bindings bindings, C context, ValuesBinder valuesBinder) {
        this.bindings = bindings;
        this.context = context;
        this.valuesBinder = valuesBinder;
    }

    public Bindings getBindings() {
        return bindings;
    }

    public C getContext() {
        return context;
    }

    @Override
    public R bind(long value) {
        Object[] allGeneratedValues = bindings.getAll(value);
        try { // Provide bindings context data where it may be useful
            return valuesBinder.bindValues(context, bindings, value);
        } catch (Exception e) {
            throw new RuntimeException("Binding error:" + bindings.getTemplate().toString(allGeneratedValues), e);
        }

    }
}