com.google.gwt.dev.javac

Class MemoryUnitCache

java.lang.Object

com.google.gwt.dev.javac.MemoryUnitCache

All Implemented Interfaces:

UnitCache

public class MemoryUnitCache
extends Object
implements UnitCache

This cache stores CompilationUnit instances in a Map. Only one unit is cached per resource path. If the contentId of the unit changes, the old unit is discarded and replaced with the new unit.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
protected static class	MemoryUnitCache.UnitCacheEntry Storage for a compilation unit in the map.
protected static class	MemoryUnitCache.UnitOrigin Track how the unit was loaded.

Field Summary

Fields

Modifier and Type	Field and Description
protected Map<String,MemoryUnitCache.UnitCacheEntry>	unitMap References to all CompilationUnit objects loaded from the persistent store, and any new ones added to the store as well.
protected Map<com.google.gwt.dev.javac.ContentId,MemoryUnitCache.UnitCacheEntry>	unitMapByContentId References CompilationUnit objects by ContentId, which is composed of the type name and a hash on the source code contents.

Constructor Summary

Constructors

Constructor and Description
MemoryUnitCache()

Method Summary

Modifier and Type	Method and Description
void	add(CompilationUnit newUnit) Adds a new entry into the cache.
void	addArchivedUnit(CompilationUnit newUnit) Adds a new entry into the cache, but marks it as already coming from a persistent archive.
void	cleanup(TreeLogger logger) This method is a no-op for an in-memory cache.
CompilationUnit	find(com.google.gwt.dev.javac.ContentId contentId) Lookup a CompilationUnit by ContentId.
CompilationUnit	find(String resourcePath) Lookup a CompilationUnit by resource path.
void	remove(CompilationUnit unit) Remove a CompilationUnit from the cache.

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, toString

Field Detail

unitMap

protected final Map<String,MemoryUnitCache.UnitCacheEntry> unitMap

References to all CompilationUnit objects loaded from the persistent store, and any new ones added to the store as well. The key is resource path.

unitMapByContentId

protected final Map<com.google.gwt.dev.javac.ContentId,MemoryUnitCache.UnitCacheEntry> unitMapByContentId

References CompilationUnit objects by ContentId, which is composed of the type name and a hash on the source code contents.

Constructor Detail

MemoryUnitCache

public MemoryUnitCache()

Method Detail

add

public void add(CompilationUnit newUnit)

Adds a new entry into the cache.

Specified by:

add in interface UnitCache

addArchivedUnit

public void addArchivedUnit(CompilationUnit newUnit)

Adds a new entry into the cache, but marks it as already coming from a persistent archive. This means it doesn't need to be saved out to disk.

Specified by:

addArchivedUnit in interface UnitCache

cleanup

public void cleanup(TreeLogger logger)

This method is a no-op for an in-memory cache.

Specified by:

cleanup in interface UnitCache

find

public CompilationUnit find(com.google.gwt.dev.javac.ContentId contentId)

Description copied from interface: UnitCache

Lookup a CompilationUnit by ContentId.

Specified by:

find in interface UnitCache

find

public CompilationUnit find(String resourcePath)

Description copied from interface: UnitCache

Lookup a CompilationUnit by resource path. This should include any path prefix that may have been stripped to reroot the resource.
Contained CompilationUnits must be keyed on this combination of path prefix and path to avoid collision when reusing a UnitCache instance between compiles that do and do not SuperSource a given class.

Specified by:

find in interface UnitCache

See Also:

CompilationUnit.getResourcePath()

remove

public void remove(CompilationUnit unit)

Description copied from interface: UnitCache

Remove a CompilationUnit from the cache.

Specified by:

remove in interface UnitCache