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package com.tvl.modules.editor.completion;

import com.tvl.spi.editor.completion.CompletionResultSet;

/**
 * Accessor for the package-private functionality in org.netbeans.api.editor.completion.
 *
 * @author Miloslav Metelka
 * @version 1.00
 */

public abstract class CompletionSpiPackageAccessor {

    private static CompletionSpiPackageAccessor INSTANCE;

    public static CompletionSpiPackageAccessor get() {
        return INSTANCE;
    }

    /**
     * Register the accessor. The method can only be called once
     * - othewise it throws IllegalStateException.
     * 
     * @param accessor instance.
     */
    public static void register(CompletionSpiPackageAccessor accessor) {
        if (INSTANCE != null) {
            throw new IllegalStateException("Already registered"); // NOI18N
        }
        INSTANCE = accessor;
    }
    
    public abstract CompletionResultSet createCompletionResultSet(
    CompletionResultSetImpl impl);

}