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* The cache of java elements to their respective info. |
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* The cache of java elements to their respective info. |
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*/ |
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*/ |
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public class JavaModelCache { |
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public class JavaModelCache { |
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public static final int BASE_VALUE = 20; |
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public static final int DEFAULT_PROJECT_SIZE = 5; // average 25552 bytes per project. |
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public static final int DEFAULT_PROJECT_SIZE = 5; // average 25552 bytes per project. |
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public static final int DEFAULT_ROOT_SIZE = BASE_VALUE*10; // average 2590 bytes per root -> maximum size : 25900*BASE_VALUE bytes |
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public static final int DEFAULT_ROOT_SIZE = 50; // average 2590 bytes per root -> maximum size : 25900*BASE_VALUE bytes |
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public static final int DEFAULT_PKG_SIZE = BASE_VALUE*100; // average 1782 bytes per pkg -> maximum size : 178200*BASE_VALUE bytes |
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public static final int DEFAULT_PKG_SIZE = 500; // average 1782 bytes per pkg -> maximum size : 178200*BASE_VALUE bytes |
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public static final int DEFAULT_OPENABLE_SIZE = BASE_VALUE*100; // average 6629 bytes per openable (includes children) -> maximum size : 662900*BASE_VALUE bytes |
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public static final int DEFAULT_OPENABLE_SIZE = 500; // average 6629 bytes per openable (includes children) -> maximum size : 662900*BASE_VALUE bytes |
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public static final int DEFAULT_CHILDREN_SIZE = BASE_VALUE*100*20; // average 20 children per openable |
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public static final int DEFAULT_CHILDREN_SIZE = 500*20; // average 20 children per openable |
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/** |
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/** |
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* Active Java Model Info |
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* Active Java Model Info |
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Lines 57-67
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protected Map childrenCache; |
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protected Map childrenCache; |
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public JavaModelCache() { |
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public JavaModelCache() { |
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// set the size of the caches in function of the maximum amount of memory available |
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double ratio = Runtime.getRuntime().maxMemory() / 64000000; // 64000000 is the base memory for most JVM |
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this.projectCache = new HashMap(DEFAULT_PROJECT_SIZE); // NB: Don't use a LRUCache for projects as they are constantly reopened (e.g. during delta processing) |
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this.projectCache = new HashMap(DEFAULT_PROJECT_SIZE); // NB: Don't use a LRUCache for projects as they are constantly reopened (e.g. during delta processing) |
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this.rootCache = new ElementCache(DEFAULT_ROOT_SIZE); |
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this.rootCache = new ElementCache((int) (DEFAULT_ROOT_SIZE * ratio)); |
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this.pkgCache = new ElementCache(DEFAULT_PKG_SIZE); |
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this.pkgCache = new ElementCache((int) (DEFAULT_PKG_SIZE * ratio)); |
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this.openableCache = new ElementCache(DEFAULT_OPENABLE_SIZE); |
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this.openableCache = new ElementCache((int) (DEFAULT_OPENABLE_SIZE * ratio)); |
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this.childrenCache = new HashMap(DEFAULT_CHILDREN_SIZE); |
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this.childrenCache = new HashMap((int) (DEFAULT_CHILDREN_SIZE * ratio)); |
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} |
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} |
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/** |
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/** |
