[GOODIE] BinaryRelation

Daniel Vainsencher danielv at netvision.net.il
Thu Mar 27 15:55:19 UTC 2003


At the risk of sounding quite base and showing my complete lack of
flight and imagination -

What can I do with it? are there example? applications?

Just curious.

Daniel

ok at cs.otago.ac.nz wrote:
> 
> --Boundary_(ID_dq9Vu4ZcW7r1ej3QMPIoVw)
> Content-type: TEXT/PLAIN
> Content-transfer-encoding: 7BIT
> 
> from preamble:
> 
> "Change Set:		BinaryRelation
> Date:			27 March 2003
> Author:			Dr Richard A. O'Keefe
> 
> This adds a collection class I've often wanted, a many<->many binary
> relation.
> Basically, a BinaryRelation is like a Set of Associations, but it can
> easily be
> navigated in either direction.  This is a preliminary version sent out
> to invite
> comment.  Are the new method names well chosen?  Are there other
> operations
> which should be included?  I've wondered about renaming this to
> ManyToManyBinaryRelation and also having OneToManyBinaryRelation and
> ManyToOneBinaryRelation.  Would that be a good idea?  It's mainly the
> interface
> I would like criticised, although I'd like to fix any implementation
> errors noticed.
> There are other possible implementations."!
> 
> --Boundary_(ID_dq9Vu4ZcW7r1ej3QMPIoVw)
> Content-type: application/octet-stream; NAME=BinaryRelation.cs.gz
> Content-transfer-encoding: base64
> Content-disposition: attachment; filename=BinaryRelation.cs.gz
> 
> H4sIAAAAAAAAAM1cbW/bSJL+rA/8Dx17sbJxitZv2Z3RjLNwksnBt0gcjDM7OASegCJbEicS
> qWWTVrRJ/vs9VdUkmxRlyYm8N0Dg2GS/VNd7VVex+zJNZur6X7n2P5z2T1QyUsfH6n/y6VKd
> HB2dqHdTP9MmU/k8xC8DtX/2/ZOTG5XE6uRv6pWfBhMad6r8TB0fDZ78dXByovxZ95G393zi
> x2OtrnU26HSeRbGfLn/WWC1KYu8FrdXpdGpreBd5NklSev4iVT9HwcRPQ3XRV1fdf2g90p73
> dhIZ5YchfqggmU51QKupYOoboy67txrgZzpWCz/OdNjDqJkfL398/JT+U0OGQaUWiL73zDdR
> 4E+nSxpZh1Bho2n0QeMFDkBYuTAmCSJ+aXpqmGcqylTgx0pjFWBrqL3Yv43GOFmoIjyOsolO
> VRilAmVfKQafTqDmACKaCTy3OjW0o9ExNsK6WYL5t1GmvSCZzfAUUy9SrbCeivVCzTTQFKrY
> n2mjFno6VcEkwey/l8PwM+Hdk7lOBWRvMQFClZkk+TQEsNgimOahDjGLMbdI4hATQ+UPCYhU
> Y/0oHmM5QJwl3iug8G1CPxuY8mPMmZpETXB8TLiK9bpxdhGMqL/DAX9luLIJ+GhIWB8nOGIU
> ap/gy7oGlIxioJmQEIG66cgPtHcJsGkekypIoywKIsOUnwJH+XiCs9m3wOoo+qiIEaLZfKoJ
> sQKYTtMkNSpOMFuHfXAZIdAvkThPjImGU92YZ/p7jzzvecWGJh8yJ0JIGuzeiWKT+XGg/+mn
> kY+lXhPtBqpron9rZZI8DfQrf25/A8O9SRPAm/npWGf0Qn4rX3S9Du/UXA7P50kyfRExQHhZ
> PA3AleMkXeKvCmDz+Jc4SZnokFfvUYNelvmuM382x7wfwQdZkpLAPO2CgSNIqjp65F00JSfV
> 4G5iZmJ0I8JzICd7/FQOcqjmfpSavneZkTzksRW1EvAlSVC2SCDJSzPwDvxDy9YR0Qlil4bY
> dBplJM4mS2XeDzTICOlY4oEq/r8QeTOJ5tj1YMjLlY9ZjMF1WeqTMIr8DkH8Snox622iPmg9
> 55khcAEBstpH+2mPH++NoEz3lAHf0qnpkQ/mWhDYpGhIutSe4GLPOwDH0d8f9HLvkMWI18gS
> u0JtkiBuTxWTbv1prvcO+573MklZRx2cA5GugjvsQTuQVJJOSLUmNQEONyrUcx2HJKsAfwLw
> FoSLIBnHEB6PgTDgqD2VDH/H8dViQjoVjKqxCLSeP4YsDoq3ADXOiBIH5+fYEiw186dK/ysX
> +hzgoQcQc6PTx6EeRTEOVL6lU0980AXADKdJ8MHYE/lNde0cJlHGXzLg+LUEnLiNMetoJB7i
> uUMEj8wpS7WIoDzFZMQaYIXRaAQugx4mXaIhXKSZgDhWMgm9JLEgyMQOeGQHFho6hueffjw9
> /95SfsYKH0hjrQELatU2a1OwJRieWcw3c2DRqPk0H49JmIEApfxVYZyDra/5gOYXA3xBzZyf
> bz9025EFaZ4RNZg2/Nug+nX9Sm8ZuVuB1xy67cgtwCMFDh4f+fmU1cv+uRqBowjbwO015Fa3
> 2vtSW7FyYn4LKusSsWH2wfBWWbmD2WioWQIygzXyFAJgpYM51CpEMvwYzXvFrkPRA+ey7YOd
> W5AJxNaQF3gozF4qTBSLfZDl5K4oUsS65pGQxloRGfAWjFIwASf+YlWsV6lYUVm1RZZJrsZa
> vBAcbQVJpFjhgQACIHRMthLCwZI2T5Nb0ll+AE4y6jYi/IB67A2BgDmZEgNALmPsEMMrmfZa
> SG6Smb6CtbGC/PiplVePnIeNwxdwuQbFDJbtMOFDkjYjRyYegwF+KnQPTlhfz4h5ydQSOLCq
> ql+6HyTTGMYOo7hddohogaz0GuZJRhoRPNBwNOC3kP0MYJZVzXMBk8D8mByTL6HEYZLJXQjh
> sOAX4a1SjYT6FkqcdPHM2ImkEOn1Ei+nmjxQPjVoAnUyo9dJXBqkmT8n/xXC4JFUQDh4J/qV
> RMiqXx2DYmlT8cIgg+sNLSXajCkKf5+xNiTwAKRvSi+SeNpFT6oZe4QlWuw20gtyYdlhJzhp
> Gyz5ks7du1NIPZE7bD9itmX52g+TAUtpQ5Ihu4Jt/ZGULUkKqw9iGMZNwaE9YrRq+JziCl6D
> VhXnlCZi2+uE4H71y/VbwU25JcHweMg4cLzv33NjFQfRAFuSxAIlEckHeQ2q8suwOsn9DJJb
> EC2LZprpIHClxIypZzcGJh8XB7AHg8XT0a2479o1iyIcItyii2I5FzuCUBheRH6bK7ByvqGG
> kSTzRJiAZoaCmgv+YuLBDNZS2YghSOJbEoCEl449iiAGSjFLU0RnDeGPoyR52it0lsDtvDp5
> ClZ8I663uP3DaDwmFkOsanj1wiNklQmwIO3Cdvt5jPeDntrnUMEIXvE3qZH9wsoHelCdT0Ko
> 0jSTsAPZ6QfQStTdqnItkCRMo29pOnlKPMNyOk0svU/BV6mQSico1AByZp0KUtoY4gkJdcrB
> 3zj3LRaW1iYNSZJDpgaDSRuRq+uExQ7/c6wH2nj1uDmBZoriOs2gtlybIA6QP8V5wqWgah8R
> +MV0OhBspnqW3Gr+m2BgiSdzFpHWFGcVQefiMWzWHPJQhM5dw/bKsiKOANRm6ZJZNvFCHZA1
> YakhJ86aDNF3AOl/L/779SWRfrZU45yGEi/0QEzS8h/6ng3iWGFMiefhpmMxColHqovIKJuA
> 16Kgy1LRJe2uRrl49KZbaLeGjDrBHvm5olMlrmamIfyDiQwJ+IppAYuCI3qWvEvYURDXsyRQ
> ULdDMKo6AApvsQUFpH8ODm0AMl0yo5p8jliUbITlAZYZZlUszdzl7UuE/zrJLgvjIyjH/qSa
> M4n2wyRg5tUSdETG5HA3EAV6j5yI1qLhJYV6XYR8YJB43CVJ5pAw9ZMP6vQvJ/hHKaCT48GT
> M0SSPPAn2dtcIVDwrzOwz8zrfA4+IxZV79WfDvpex+jpSJHGfjfQPnD4uRgI3HzM3uTZQAU/
> KF4Nfp9PfgzPVTd9WuUcq6ho9DbNkZZ615jK/Ng9OOzeYMhLuCgtYwbqT4dY6pHiYzdMTe3o
> 4tXcefajwel3ODsF9F7nN/6PF/72dc+OaV3x0b3O3kVsFmDjTwb4OvgJofSB6eFnFKtCY3zZ
> IwjKpALCS7MbWI4HR0cVLBdZ6Ws1oAJANsx3oeoTWAdVTsMv54NEF0My4KBRPQVycwhWny8f
> AJPXTKgC7v3t0Umk3SU8ggKXshmDYtaBUmGQKLtLwlpQiLBy3iZQ8rTXStgKQ3453yVsPYW1
> Y8KeVNA3Cbs1NrckbBhuAObJXwEMhpF9dCyp1XerL4iMNnSpP+cUD1Tdb7XHOwHxSSuIINcb
> iVTxQmLprwPaXejdb7KUvLl5mPMcFedpiwQhveUhWt7XgL3xHhyeNixvlJ7W9/O8VKFlapik
> 6ubQ63R4+5YTrpBjo0pufc97N/LV9b3lJdl5SnK/Z/lS/6WO+9+A4jNB8fGTwbGVMjb0Vqcj
> a5dQ+t1RqWGoPongf1acJCmG/lllHPvI0C8S3+lSN0gOUXSI+xzHkWuchc83UVpCZ7oiA8Di
> ac18ug0qfFa47UjljPIpqclid/F6LBnhE3UsHPaFxTG96NzJuzcsTzRkM06JOpvcN0IqjStk
> xkxwgGTxHI/oGiR7vpXO3rjTyeD4b3ann2bzrNyOHqgyoNjJkY7P7Ea/RnQjlK1o5Wrn9hF3
> azrvgYBs1WOfIcTIaYIt5BcSqgL4fvlQ8LdO9ZRSzZwjU3Zzhu/rZ5CscuVJrFD4bdPbeBAw
> ZJemLXDAuG56s5vBKJNjd4NyQqBAfq4x0oyWJw2jGiYnjhIoZV4duAq6JKP9q3Ssy6DmtxH9
> IoogS7fiyHvBHy8fBn4btzHMAj0fZHfgnx4zJ3AwW8Ku1ksR3cNQZhYJ7v6GI9qJrJW3Oa4j
> azs/Xx7XT2fyGY6GnzjXUX+ntJJF6SfMuDU9+Wx3BzrFgSgXFmTX+cxht/udyYVya+Ls8hxn
> ZNucJGPz2gJ+iU06SpordLKO5FmUWUdJT3MNQiP5aMiZ2Huj0wmy+ZLAjTivpBZpghQaLUxF
> JRyaMbZS/bvIQQvGmtcqtjTEtLscO1QwjKjEofQe3z1QMqiM1lzvq8cX4qpB1JKeOG3hYhXh
> 8UUc/pPemhfJ6tHNes9LbWacm5v+DoX5jFGxpYptBa68LNslXMzLtST6H4Kb8eMPx82n5DxT
> Vvhh7WXD3O8IfOuRl1qigLxyl9hR5yDg5/ogUPeZRpwwuhoN1HahyLbMd1aC1ITobnV2p3Ts
> FmMlJ96Fsev6oAfGmIDUhOhukfkPYeysLX2sXL23MRvBp0H6sJq0Q3V38l0F4AtXG9eMSvWm
> /407F/mMs8HZ905uukHALXL+yGc09cjhlzJZgX+4bIzwRss9u3CETUbU+QV35IGeZ3Llqek+
> bkbFJno0iuAexxktehnjZjHF9Vk+pdI3qVB5ffVWLsy58s5aVbqMF0ztOZ6363qvppD6bfiu
> siXtCtNRka53Li9v7hXs3oeZV1LmdWbelNZrYebd8rKFz+Xl+v3BQ/DyE+cyYS0vr8/Lr/Jy
> tpGXC357CF4u5GQjL7ekYvtt+H631vivmHuXl92U3055GXaDfBcpmvh/9u825Liazt02EXqb
> 23cfHHJl5qbLXwnGW+op/evlbJhMrRM4y032TLNnQKeRd7jK3j+vaI6gpNIb792iaElNdBo6
> 8z2X/9p3olEaa69f/NIW726xSTG0bTM+G9fRc5aO0BAZwiMVcCAXjuNxrdl5t/8t+K7S/0en
> 6/DNVTV3VIe20eHARcmbohC3jhO616jWdvf5oXWjalkHh+XaFon3X3T37Fqvr/0qdq1UXBu7
> NtTifdnVXXw9u65s8odl15Z65vuyq4uSHbLrCg7/E+zKWfht7quLe422W/XWdzu/WP82UB2/
> r5YX+ArYay7kt16vb3WqM+dUd9yxb3n3VJM/9ge4FpWqBUdIaIfdmx2BfXo32C0k2eyy1/BN
> ElFs0BKr3vuuff3qmyBpXLQ/xkX7LpCIOOe4RCIuZd3YrHxY83Ldp1teTW8Gw17srbmyg3f5
> M7/hOkin/kxqt7m+eqvb/b17JiBqd/itrHOo1rPHDftZdaLdtODyH3pZTC9w6nV2hNXvSqy+
> ban+qmG1LP76GqzeJxKuFUC00uNQrReLdVht8i1jtSxS2RqrttTjzmI6iqaKtrjLMv3sx1fc
> EwS8SrdQqKcUb1I3RE7eQFnQziqRWzgY0+tacdw6bUSyPIuej3M/pQ5oidWG2ulrY6JR5fGy
> 6BC2TXxy0WKWJtMzrpOnrgosSq2RXKrMjUF4lsK8x6FRXN2vZ+ogo1YiO6ELRqFxPsdrh9In
> wXGi4LCHFdf2PfSczQo2ghdI5d5Jbkueqehe2xCSEofaxF0gtCi357hUSrAp5q9q3RmJB/7Q
> ZKkfgH2ynLppyr4r1VI2TaBKlJpG40nWaOapQ0UtUA5oNKnqUqBKoVrDEFaW8/H+4IAZb+Db
> bu4xhAanoz6YhIzioic120WLAhYHE2Tci5jjXoavRfhaYDfce8pXPhXX1tytPU7CEJ5NebMC
> XU+ZbG6dKR7FS3pE2YHq1mbNonf7Ojs4k63JvPMiaJsSVnv3cugcZNuSkW3wTqo4CYI85Wtj
> IyitI1/4IJlHXLcfWSVM3jm3ShSZmSYklPTi5iOMtNW6d9DDST8du+XzRzcPds5WgjzYaVt2
> +5Yzz1NkIzN9Z2Hdd8x/EXUFcn2ytU9lMcOapl3VeN/smlXb+1gboTwZHJGn54SaFsxzdeRg
> xOs0wmc/Jr89kK99OME0d437Vb8U91bGjzWt3N3qjnobxFK4VVQmerXUVvX7SiL2vfNpBfty
> d1hkR3XTPanvpFefS5M/fyJDMXqkPo3MfgkFJZ/D0DoEhHAjt8zkNlRZaX9TYpQcqvvVl22s
> Qa3XT9+nInULZJ4cWWTedYX6x0dmlc36Olx6u+FM7t6RMjeg6teysTyHv7Rf1L9xK/AnuUjp
> yT37l0+9ky8Dvi3h1D3n+3Nji5/3rZslg/irB+zGwjMTp3JK7g11bsJLM4J+24hbeEvkvcJl
> NSP6eASfTXrb6A5GvNjaJvLhhlRneRo3Wumtc0sNswTva8AXJmUHM13njFNKMbADK717ZZ//
> 73kIFQa9xZ4xd+7LDmRJyHV1coo9yhC6+THq05yyP2+/JsLt3GA760SyKrXtvHLzIO2onZYp
> ZRPlim/onDlNfTje9obLQWTlXweIMAofWS5qqD+1cMo198FJ1zb3xgPSfp8N5pV8FaZyzdt7
> 5OS7SzUuLD50owLQmgbdqbypgAJpxcI/HNL3mF7rhXIsZSvjf93GTjr2RDYeqPgN6YDCrcW/
> lC4X04KzSTaLVle1jxkv4YEMiqZbYrBr/vgMfZNhrv0P3AOAwMR+ZmnOYUlCX99ROubvEZm5
> H3DX7iTBANnetuliNdsp3/xwgLWxGTeZhreI7fxxySjAViU29BmIeMlxm6HI6fjoyKo5YfGZ
> Buscu6qHh9jrU2bq46PyxpM7Sjv0pBxATEmb2hNW7eWwpX+pN1MZ8NbflXrFaLHMyVIAZkPG
> jz57xayXMmL2rYvzyfpAPevrfBFn512VX74hmSmaoEEt+twBiPDBhqH8pQHuPVbzhHaKSIEL
> CAA8hwSXYhomBFNCnEQDqv7sAkwRlpHEYTSLPc9oHJOTGWVVbENsbKWEHNR7Ngxx9QcbBaxz
> ZUPy1TahvcuRO0Bsl/NthyLjgtNr23/bY0tHH+2pkjMRX3xfEaIW/FUceeyaMi6l/AzUhfoj
> GToXrNfRtJnDvaa7d8ulxGI47iingLzsbwbOff7siQWMPMCOLG9veBEah7Zr+CrlPcpNyQwe
> +KTwODLjaYcK1rQGjJ9Bd1zSOztEmpSqVapfb2Ruksn0WiJVNM4KEbfJpp0d1VOlBcj4g/uN
> gQX2Qwkz5Py3q9VUJ+kYOPy3fuQd1Bogq6+FGeWUUTktrVXhTZXNcxojD2lBy43S1IcfLqPh
> TxuJF7/V35IylC4rWqrsx2AXq6p5q7WyuH/I2i1dIqsdG7R+rXqh3knhtiVURf5FObxbRe5W
> YrMjRynGeklrvWqzrC0sSg/L0rmiuqTCPa3l1Is1CrgqIvCHSapanEZxjFRe0Imry8TWiLDt
> oXPx1holtj2s5tCmFWsXWVX7f5X7sA+Efu4fzSEX7KQ0svTNBDNtWmYKVhOl0epvsnEja1D/
> k4cwDgtPuHIj3AvUspGtVszqxhNuvFEr1RQP+ZC+k/B/huOWiDhTAAA=
> 
> --Boundary_(ID_dq9Vu4ZcW7r1ej3QMPIoVw)
> MIME-version: 1.0
> Content-type: text/plain; charset=us-ascii
> Content-transfer-encoding: 7BIT
> 
> 
> 
> --Boundary_(ID_dq9Vu4ZcW7r1ej3QMPIoVw)--



More information about the Squeak-dev mailing list