edu.umd.cs.findbugs.ba.interproc
Class PropertyDatabase<KeyType extends FieldOrMethodDescriptor,ValueType>

java.lang.Object
  edu.umd.cs.findbugs.ba.interproc.PropertyDatabase<KeyType,ValueType>

Type Parameters:

KeyType - key type: either MethodDescriptor or FieldDescriptor

ValueType - value type: a value that summarizes some property of the associated key

Direct Known Subclasses:

FieldPropertyDatabase, MethodPropertyDatabase

public abstract class PropertyDatabase<KeyType extends FieldOrMethodDescriptor,ValueType>
extends java.lang.Object

Property database for interprocedural analysis.

Author:

David Hovemeyer

Constructor Summary

protected

PropertyDatabase() Constructor.

Method Summary

protected abstract ValueType	decodeProperty(java.lang.String propStr) Subclasses must define this to instantiate the actual property value from its string encoding.
protected abstract java.lang.String	encodeProperty(ValueType property) Subclasses must define this to encode a property as a string for output to a file.
java.util.Collection<java.util.Map.Entry<KeyType,ValueType>>	entrySet()
java.util.Set<KeyType>	getKeys()
ValueType	getProperty(KeyType key) Get a property.
boolean	isEmpty() Return whether or not the database is empty.
protected abstract KeyType	parseKey(java.lang.String s) Parse a key from a String.
void	read(java.io.InputStream in) Read property database from an input stream.
void	readFromFile(java.lang.String fileName) Read property database from given file.
ValueType	removeProperty(KeyType key) Remove a property.
void	setProperty(KeyType key, ValueType property) Set a property.
void	write(java.io.OutputStream out) Write property database to an OutputStream.
protected abstract void	writeKey(java.io.Writer writer, KeyType key) Write an encoded key to given Writer.
void	writeToFile(java.lang.String fileName) Write property database to given file.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

PropertyDatabase

protected PropertyDatabase()

Constructor. Creates an empty property database.

Method Detail

setProperty

public void setProperty(KeyType key,
                        ValueType property)

Set a property.

Parameters:

key - the key

property - the property

getProperty

public ValueType getProperty(KeyType key)

Get a property.

Parameters:

key - the key

Returns:

the property, or null if no property is set for this key

getKeys

public java.util.Set<KeyType> getKeys()

entrySet

public java.util.Collection<java.util.Map.Entry<KeyType,ValueType>> entrySet()

isEmpty

public boolean isEmpty()

Return whether or not the database is empty.

Returns:

true if the database is empty, false it it has at least one entry

removeProperty

public ValueType removeProperty(KeyType key)

Remove a property.

Parameters:

key - the key

Returns:

the old property, or null if there was no property defined for this key

readFromFile

public void readFromFile(java.lang.String fileName)
                  throws java.io.IOException,
                         PropertyDatabaseFormatException

Read property database from given file.

Parameters:

fileName - name of the database file

Throws:

java.io.IOException

MethodPropertyDatabaseFormatException

PropertyDatabaseFormatException

read

public void read(@WillClose
                 java.io.InputStream in)
          throws java.io.IOException,
                 PropertyDatabaseFormatException

Read property database from an input stream. The InputStream is guaranteed to be closed, even if an exception is thrown.

Parameters:

in - the InputStream

Throws:

java.io.IOException

MethodPropertyDatabaseFormatException

PropertyDatabaseFormatException

writeToFile

public void writeToFile(java.lang.String fileName)
                 throws java.io.IOException

Write property database to given file.

Parameters:

fileName - name of the database file

Throws:

java.io.IOException

write

public void write(@WillClose
                  java.io.OutputStream out)
           throws java.io.IOException

Write property database to an OutputStream. The OutputStream is guaranteed to be closed, even if an exception is thrown.

Parameters:

out - the OutputStream

Throws:

java.io.IOException

parseKey

protected abstract KeyType parseKey(java.lang.String s)
                                                             throws PropertyDatabaseFormatException

Parse a key from a String.

Parameters:

s - a String

Returns:

the decoded key

Throws:

PropertyDatabaseFormatException

writeKey

protected abstract void writeKey(java.io.Writer writer,
                                 KeyType key)
                          throws java.io.IOException

Write an encoded key to given Writer.

Parameters:

writer - the Writer

key - the key

Throws:

java.io.IOException

decodeProperty

protected abstract ValueType decodeProperty(java.lang.String propStr)
                                     throws PropertyDatabaseFormatException

Subclasses must define this to instantiate the actual property value from its string encoding.

Parameters:

propStr - String containing the encoded property

Returns:

the property

Throws:

MethodPropertyDatabaseFormatException

PropertyDatabaseFormatException

encodeProperty

protected abstract java.lang.String encodeProperty(ValueType property)

Subclasses must define this to encode a property as a string for output to a file.

Parameters:

property - the property

Returns:

a String which encodes the property