common/buildcraft/api/transport/IExtractionHandler.java

package buildcraft.api.transport;

import net.minecraft.world.World;

/**
 * Implement and register with the PipeManager if you want to suppress connections from wooden pipes.
 */
public interface IExtractionHandler {

	/**
	 * Can this pipe extract items from the block located at these coordinates?
	 * param extractor can be null
	 */
	boolean canExtractItems(Object extractor, World world, int i, int j, int k);

	/**
	 * Can this pipe extract liquids from the block located at these coordinates?
	 * param extractor can be null
	 */
	boolean canExtractFluids(Object extractor, World world, int i, int j, int k);
}