- Database - Class in simpledb
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Database is a class that initializes several static variables used by the
database system (the catalog, the buffer pool, and the log files, in
particular.)
- Database() - Constructor for class simpledb.Database
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- DbException - Exception in simpledb
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Generic database exception class
- DbException(String) - Constructor for exception simpledb.DbException
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- DbFile - Interface in simpledb
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The interface for database files on disk.
- DbFileIterator - Interface in simpledb
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DbFileIterator is the iterator interface that all SimpleDB Dbfile should
implement.
- DbIterator - Interface in simpledb
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DbIterator is the iterator interface that all SimpleDB operators should
implement.
- DeadlockException - Exception in simpledb
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Exception that is thrown when a deadlock occurs.
- DeadlockException() - Constructor for exception simpledb.DeadlockException
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- Debug - Class in simpledb
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Debug is a utility class that wraps println statements and allows
more or less command line output to be turned on.
- Debug() - Constructor for class simpledb.Debug
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- DEBUG_LEVEL - Static variable in class simpledb.Debug
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- DEFAULT_LEVEL - Static variable in class simpledb.Debug
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- DEFAULT_PAGES - Static variable in class simpledb.BufferPool
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Default number of pages passed to the constructor.
- deleteTuple(TransactionId, Tuple) - Method in class simpledb.BufferPool
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Remove the specified tuple from the buffer pool.
- deleteTuple(TransactionId, Tuple) - Method in interface simpledb.DbFile
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Removes the specified tuple from the file on behalf of the specified
transaction.
- deleteTuple(TransactionId, Tuple) - Method in class simpledb.HeapFile
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- deleteTuple(Tuple) - Method in class simpledb.HeapPage
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Delete the specified tuple from the page; the tuple should be updated to reflect
that it is no longer stored on any page.
- discardPage(PageId) - Method in class simpledb.BufferPool
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Remove the specific page id from the buffer pool.
- getAlias() - Method in class simpledb.SeqScan
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- getBeforeImage() - Method in class simpledb.HeapPage
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Return a view of this page before it was modified
-- used by recovery
- getBeforeImage() - Method in interface simpledb.Page
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Provide a representation of this page before any modifications were made
to it.
- getBufferPool() - Static method in class simpledb.Database
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Return the buffer pool of the static Database instance
- getCatalog() - Static method in class simpledb.Database
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Return the catalog of the static Database instance
- getDatabaseFile(int) - Method in class simpledb.Catalog
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Returns the DbFile that can be used to read the contents of the
specified table.
- getField() - Method in class simpledb.Predicate
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- getField(int) - Method in class simpledb.Tuple
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- getFieldName(int) - Method in class simpledb.TupleDesc
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Gets the (possibly null) field name of the ith field of this TupleDesc.
- getFieldType(int) - Method in class simpledb.TupleDesc
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Gets the type of the ith field of this TupleDesc.
- getFile() - Method in class simpledb.HeapFile
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Returns the File backing this HeapFile on disk.
- getHeaderSize() - Method in class simpledb.HeapPage
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Computes the number of bytes in the header of a page in a HeapFile with each tuple occupying tupleSize bytes
- getHeapTuple(int) - Static method in class simpledb.Utility
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- getHeapTuple(int[]) - Static method in class simpledb.Utility
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- getHeapTuple(int, int) - Static method in class simpledb.Utility
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- getId() - Method in interface simpledb.DbFile
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Returns a unique ID used to identify this DbFile in the Catalog.
- getId() - Method in class simpledb.HeapFile
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Returns an ID uniquely identifying this HeapFile.
- getId() - Method in class simpledb.HeapPage
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- getId() - Method in interface simpledb.Page
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Return the id of this page.
- getId() - Method in class simpledb.TransactionId
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- getLen() - Method in enum simpledb.Type
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- getLogFile() - Static method in class simpledb.Database
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Return the log file of the static Database instance
- getNumEmptySlots() - Method in class simpledb.HeapPage
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Returns the number of empty slots on this page.
- getNumTuples() - Method in class simpledb.HeapPage
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Retrieve the number of tuples on this page.
- getOp() - Method in class simpledb.Predicate
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- getOp(int) - Static method in enum simpledb.Predicate.Op
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Interface to access operations by integer value for command-line
convenience.
- getOperand() - Method in class simpledb.Predicate
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- getPage(TransactionId, PageId, Permissions) - Method in class simpledb.BufferPool
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Retrieve the specified page with the associated permissions.
- getPageData() - Method in class simpledb.HeapPage
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Generates a byte array representing the contents of this page.
- getPageData() - Method in interface simpledb.Page
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Generates a byte array representing the contents of this page.
- getPageId() - Method in class simpledb.RecordId
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- getPageSize() - Static method in class simpledb.BufferPool
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- getPrimaryKey(int) - Method in class simpledb.Catalog
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- getRecordId() - Method in class simpledb.Tuple
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- getSize() - Method in class simpledb.TupleDesc
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- getStrings(int, String) - Static method in class simpledb.Utility
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- getTableId(String) - Method in class simpledb.Catalog
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Return the id of the table with a specified name,
- getTableId() - Method in class simpledb.HeapPageId
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- getTableId() - Method in interface simpledb.PageId
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- getTableName(int) - Method in class simpledb.Catalog
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- getTableName() - Method in class simpledb.SeqScan
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- getTotalRecords() - Method in class simpledb.LogFile
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- getTuple(int[], int) - Static method in class simpledb.Utility
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- getTupleDesc(int) - Method in class simpledb.Catalog
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Returns the tuple descriptor (schema) of the specified table
- getTupleDesc() - Method in interface simpledb.DbFile
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Returns the TupleDesc of the table stored in this DbFile.
- getTupleDesc() - Method in interface simpledb.DbIterator
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Returns the TupleDesc associated with this DbIterator.
- getTupleDesc() - Method in class simpledb.HeapFile
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Returns the TupleDesc of the table stored in this DbFile.
- getTupleDesc() - Method in class simpledb.SeqScan
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Returns the TupleDesc with field names from the underlying HeapFile,
prefixed with the tableAlias string from the constructor.
- getTupleDesc() - Method in class simpledb.Tuple
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- getTupleDesc() - Method in class simpledb.TupleIterator
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- getTupleDesc(int, String) - Static method in class simpledb.Utility
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- getTupleDesc(int) - Static method in class simpledb.Utility
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- getType() - Method in interface simpledb.Field
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- getType() - Method in class simpledb.IntField
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Return the Type of this field.
- getType() - Method in class simpledb.StringField
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- getTypes(int) - Static method in class simpledb.Utility
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- getValue() - Method in class simpledb.IntField
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- getValue() - Method in class simpledb.StringField
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- listToString(ArrayList<Integer>) - Static method in class simpledb.Utility
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- loadSchema(String) - Method in class simpledb.Catalog
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Reads the schema from a file and creates the appropriate tables in the database.
- log(int, String, Object...) - Static method in class simpledb.Debug
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Log message if the log level >= level.
- log(String, Object...) - Static method in class simpledb.Debug
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Logs message at the default log level.
- logAbort(TransactionId) - Method in class simpledb.LogFile
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Write an abort record to the log for the specified tid, force
the log to disk, and perform a rollback
- logCheckpoint() - Method in class simpledb.LogFile
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Checkpoint the log and write a checkpoint record.
- logCommit(TransactionId) - Method in class simpledb.LogFile
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Write a commit record to disk for the specified tid,
and force the log to disk.
- LogFile - Class in simpledb
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The format of the log file is as follows:
The first long integer of the file represents the offset of the
last written checkpoint, or -1 if there are no checkpoints
All additional data in the log consists of log records.
- LogFile(File) - Constructor for class simpledb.LogFile
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Constructor.
- logFile - Variable in class simpledb.LogFile
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- LOGFILENAME - Static variable in class simpledb.Database
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- logTruncate() - Method in class simpledb.LogFile
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Truncate any unneeded portion of the log to reduce its space
consumption
- logWrite(TransactionId, Page, Page) - Method in class simpledb.LogFile
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Write an UPDATE record to disk for the specified tid and page
(with provided before and after images.)
- logXactionBegin(TransactionId) - Method in class simpledb.LogFile
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Write a BEGIN record for the specified transaction
- LONG_SIZE - Static variable in class simpledb.LogFile
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- raf - Variable in class simpledb.LogFile
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- READ_ONLY - Static variable in class simpledb.Permissions
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- READ_WRITE - Static variable in class simpledb.Permissions
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- readNext() - Method in class simpledb.AbstractDbFileIterator
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Reads the next tuple from the underlying source.
- readNextTuple(DataInputStream, int) - Method in class simpledb.HeapPage
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Suck up tuples from the source file.
- readPage(PageId) - Method in interface simpledb.DbFile
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Read the specified page from disk.
- readPage(PageId) - Method in class simpledb.HeapFile
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- readPageData(RandomAccessFile) - Method in class simpledb.LogFile
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- RecordId - Class in simpledb
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A RecordId is a reference to a specific tuple on a specific page of a
specific table.
- RecordId(PageId, int) - Constructor for class simpledb.RecordId
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Creates a new RecordId referring to the specified PageId and tuple
number.
- recover() - Method in class simpledb.LogFile
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Recover the database system by ensuring that the updates of
committed transactions are installed and that the
updates of uncommitted transactions are not installed.
- recoveryUndecided - Variable in class simpledb.LogFile
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- releasePage(TransactionId, PageId) - Method in class simpledb.BufferPool
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Releases the lock on a page.
- reset() - Static method in class simpledb.Database
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- reset(int, String) - Method in class simpledb.SeqScan
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Reset the tableid, and tableAlias of this operator.
- resetBufferPool(int) - Static method in class simpledb.Database
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Method used for testing -- create a new instance of the buffer pool and
return it
- resetPageSize() - Static method in class simpledb.BufferPool
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- resetTupleDesc(TupleDesc) - Method in class simpledb.Tuple
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reset the TupleDesc of thi tuple
- rewind() - Method in interface simpledb.DbFileIterator
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Resets the iterator to the start.
- rewind() - Method in interface simpledb.DbIterator
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Resets the iterator to the start.
- rewind() - Method in class simpledb.SeqScan
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- rewind() - Method in class simpledb.TupleIterator
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- rollback(TransactionId) - Method in class simpledb.LogFile
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Rollback the specified transaction, setting the state of any
of pages it updated to their pre-updated state.
- tableIdIterator() - Method in class simpledb.Catalog
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- td - Variable in class simpledb.HeapPage
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- td - Variable in class simpledb.TupleIterator
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- TDItem(Type, String) - Constructor for class simpledb.TupleDesc.TDItem
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- tidToFirstLogRecord - Variable in class simpledb.LogFile
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- toString() - Method in interface simpledb.Field
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- toString() - Method in class simpledb.IntField
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- toString() - Method in class simpledb.Permissions
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- toString() - Method in enum simpledb.Predicate.Op
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- toString() - Method in class simpledb.Predicate
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Returns something useful, like "f = field_id op = op_string operand =
operand_string
- toString() - Method in class simpledb.StringField
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- toString() - Method in class simpledb.Tuple
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Returns the contents of this Tuple as a string.
- toString() - Method in class simpledb.TupleDesc.TDItem
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- toString() - Method in class simpledb.TupleDesc
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Returns a String describing this descriptor.
- totalRecords - Variable in class simpledb.LogFile
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- TransactionAbortedException - Exception in simpledb
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Exception that is thrown when a transaction has aborted.
- TransactionAbortedException() - Constructor for exception simpledb.TransactionAbortedException
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- transactionComplete(TransactionId) - Method in class simpledb.BufferPool
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Release all locks associated with a given transaction.
- transactionComplete(TransactionId, boolean) - Method in class simpledb.BufferPool
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Commit or abort a given transaction; release all locks associated to
the transaction.
- TransactionId - Class in simpledb
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TransactionId is a class that contains the identifier of a transaction.
- TransactionId() - Constructor for class simpledb.TransactionId
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- Tuple - Class in simpledb
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Tuple maintains information about the contents of a tuple.
- Tuple(TupleDesc) - Constructor for class simpledb.Tuple
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Create a new tuple with the specified schema (type).
- TupleDesc - Class in simpledb
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TupleDesc describes the schema of a tuple.
- TupleDesc(Type[], String[]) - Constructor for class simpledb.TupleDesc
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Create a new TupleDesc with typeAr.length fields with fields of the
specified types, with associated named fields.
- TupleDesc(Type[]) - Constructor for class simpledb.TupleDesc
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Constructor.
- TupleDesc.TDItem - Class in simpledb
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A help class to facilitate organizing the information of each field
- TupleIterator - Class in simpledb
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Implements a DbIterator by wrapping an Iterable.
- TupleIterator(TupleDesc, Iterable<Tuple>) - Constructor for class simpledb.TupleIterator
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Constructs an iterator from the specified Iterable, and the specified
descriptor.
- tupleno() - Method in class simpledb.RecordId
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- tuples - Variable in class simpledb.HeapPage
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- tuples - Variable in class simpledb.TupleIterator
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- Type - Enum in simpledb
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Class representing a type in SimpleDB.
- Type() - Constructor for enum simpledb.Type
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