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Add TableOptions for BlockBasedTableFactory

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We are having more and more options to specify for this table so it makes sense to have a TableOptions for future extension.
This commit is contained in:
kailiu 2013-11-20 18:42:12 -08:00
parent db2e2615f8
commit 56589ab81f
2 changed files with 18 additions and 11 deletions
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6
table/block_based_table_factory.cc
View File

@ -29,7 +29,8 @@ Status BlockBasedTableFactory::GetTableReader(
TableBuilder* BlockBasedTableFactory::GetTableBuilder(
const Options& options, WritableFile* file,
CompressionType compression_type) const {
auto flush_block_policy_factory = flush_block_policy_factory_.get();
auto flush_block_policy_factory =
table_options_.flush_block_policy_factory.get();
// if flush block policy factory is not set, we'll create the default one
// from the options.
@ -54,7 +55,8 @@ TableBuilder* BlockBasedTableFactory::GetTableBuilder(
// options.
// We can safely delete flush_block_policy_factory since it will only be used
// during the construction of `BlockBasedTableBuilder`.
if (flush_block_policy_factory != flush_block_policy_factory_.get()) {
if (flush_block_policy_factory !=
table_options_.flush_block_policy_factory.get()) {
delete flush_block_policy_factory;
}

23
table/block_based_table_factory.h
View File

@ -31,14 +31,18 @@ class BlockBasedTableBuilder;
class BlockBasedTableFactory: public TableFactory {
public:
// @flush_block_policy_factory creates the instances of flush block policy.
// which provides a configurable way to determine when to flush a block in
// the block based tables. If not set, table builder will use the default
// block flush policy, which cut blocks by block size (please refer to
// `FlushBlockBySizePolicy`).
BlockBasedTableFactory(
FlushBlockPolicyFactory* flush_block_policy_factory = nullptr) :
flush_block_policy_factory_(flush_block_policy_factory) {
struct TableOptions {
// @flush_block_policy_factory creates the instances of flush block policy.
// which provides a configurable way to determine when to flush a block in
// the block based tables. If not set, table builder will use the default
// block flush policy, which cut blocks by block size (please refer to
// `FlushBlockBySizePolicy`).
std::shared_ptr<FlushBlockPolicyFactory> flush_block_policy_factory;
};
BlockBasedTableFactory() : BlockBasedTableFactory(TableOptions()) { }
BlockBasedTableFactory(const TableOptions& table_options):
table_options_(table_options) {
}
~BlockBasedTableFactory() {
@ -58,7 +62,8 @@ public:
override;
private:
std::unique_ptr<FlushBlockPolicyFactory> flush_block_policy_factory_;
TableOptions table_options_;
};
} // namespace rocksdb