aeron-client/src/main/java/io/aeron/DirectBufferVector.java
public DirectBufferVector reset(final DirectBuffer buffer, final int offset, final int length)
    {
        this.buffer = buffer;
        this.offset = offset;
        this.length = length;

        return this;
    }
public DirectBufferVector reset(final DirectBuffer buffer, final int offset, final int length)
    {
        this.buffer = buffer;
        this.offset = offset;
        this.length = length;

        return this;
    }
Reset the values.

@param buffer which is the super set.
@param offset at which the vector begins.
@param length of the vector.
@return this for a fluent API.