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Diffstat (limited to 'jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/internal/strategy/MergingCompositionStrategy.java')
| -rw-r--r-- | jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/internal/strategy/MergingCompositionStrategy.java | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/internal/strategy/MergingCompositionStrategy.java b/jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/internal/strategy/MergingCompositionStrategy.java deleted file mode 100644 index 4e8cb428b..000000000 --- a/jsf/plugins/org.eclipse.jst.jsf.common/src/org/eclipse/jst/jsf/common/internal/strategy/MergingCompositionStrategy.java +++ /dev/null @@ -1,213 +0,0 @@ -package org.eclipse.jst.jsf.common.internal.strategy; - -import java.util.Collection; -import java.util.List; -import java.util.Map; -import java.util.Set; - -import org.eclipse.jst.jsf.common.internal.strategy.StrategyComposite.AbstractCompositionStrategy; -import org.eclipse.jst.jsf.common.internal.strategy.StrategyComposite.CompositionArguments; - -/** - * A composition strategy that merges the result of all composed strategies. The - * merge policy is left to concrete implementations. Three concrete impls are - * provided: one that uses compose all (List) and one that uses compose unique - * (Set) and a third that uses Map. - * - * @author cbateman - * - * @param <INPUT> - * @param <MERGETYPE> - * @param <STRATEGY> - */ -/** - * @author cbateman - * - * @param <INPUT> - * @param <OUTPUT> - * @param <MERGETYPE> - * @param <STRATEGY> - */ -public abstract class MergingCompositionStrategy<INPUT, OUTPUT, MERGETYPE, STRATEGY extends ISimpleStrategy<INPUT, OUTPUT>> -extends AbstractCompositionStrategy<INPUT, OUTPUT, MERGETYPE, STRATEGY> -{ - /** - * The result of the merge. - */ - protected final MERGETYPE _composedResult; - - /** - * @param composedResult - * @param noResultValue - */ - public MergingCompositionStrategy(final MERGETYPE composedResult, - final MERGETYPE noResultValue) - { - super(); - _composedResult = composedResult; - } - - @Override - public boolean compose(final CompositionArguments<INPUT, OUTPUT, STRATEGY> args) - throws Exception - { - final OUTPUT result = args.getStrategy().perform(args.getInput()); - if (result != args.getStrategy().getNoResult()) - { - doCompose(result); - } - // never stop composing early - return false; - } - - /** - * Sub-classes must implement to do the detail composition for their result - * type. - * - * @param result - */ - protected abstract void doCompose(OUTPUT result); - - @Override - public MERGETYPE getComposedResult() - { - return _composedResult; - } - - @Override - public abstract void reset(); - - /** - * An implementation that uses a List to implement the list policy. The - * result is to add all results from all composed strategies to a single - * list. Duplicates may occur. - * - * @param <INPUT> - * @param <OUTPUT> - * @param <MERGETYPE> - * @param <STRATEGY> - * ` - */ - public static class ListMergingCompositionStrategy<INPUT, OUTPUT, MERGETYPE extends List, STRATEGY extends ISimpleStrategy<INPUT, OUTPUT>> - extends - MergingCompositionStrategy<INPUT, OUTPUT, MERGETYPE, STRATEGY> - { - /** - * @param composedResult - * @param noResultValue - */ - public ListMergingCompositionStrategy(final MERGETYPE composedResult, - final MERGETYPE noResultValue) - { - super(composedResult, noResultValue); - } - - @Override - protected void doCompose(final OUTPUT result) - { - if (result instanceof Collection) - { - _composedResult.addAll((Collection) result); - } else - { - _composedResult.add(result); - } - } - - @Override - public void reset() - { - _composedResult.clear(); - } - } - - /** - * An implementation that uses a List to implement the list policy. The - * result is to add all results from all composed strategies to a single - * list. Duplicates will not occur. - * - * @param <INPUT> - * @param <OUTPUT> - * @param <MERGETYPE> - * @param <STRATEGY> - */ - public static class SetMergingCompositionStrategy<INPUT, OUTPUT, MERGETYPE extends Set, STRATEGY extends ISimpleStrategy<INPUT, OUTPUT>> - extends - MergingCompositionStrategy<INPUT, OUTPUT, MERGETYPE, STRATEGY> - { - /** - * @param composedResult - * @param noResultValue - */ - public SetMergingCompositionStrategy(final MERGETYPE composedResult, - final MERGETYPE noResultValue) - { - super(composedResult, noResultValue); - } - - @Override - protected void doCompose(final OUTPUT result) - { - if (result instanceof Collection) - { - _composedResult.addAll((Collection) result); - } else - { - _composedResult.add(result); - } - } - - @Override - public void reset() - { - _composedResult.clear(); - } - } - - /** - * @author cbateman - * - * @param <INPUT> - * @param <OUTPUT> - * @param <MERGETYPE> - * @param <STRATEGY> - */ - public abstract static class MapMergingCompositionStrategy<INPUT, OUTPUT, MERGETYPE extends Map, STRATEGY extends ISimpleStrategy<INPUT, OUTPUT>> - extends - MergingCompositionStrategy<INPUT, OUTPUT, MERGETYPE, STRATEGY> - { - /** - * @param composedResult - * @param noResultValue - */ - public MapMergingCompositionStrategy(final MERGETYPE composedResult, - final MERGETYPE noResultValue) - { - super(composedResult, noResultValue); - } - - @Override - protected void doCompose(final OUTPUT result) - { - if (result instanceof Map) - { - _composedResult.putAll((Map) result); - } else - { - _composedResult.put(calculateKey(result), result); - } - } - - /** - * @param result - * @return the key to be used for result in any composed map. - */ - protected abstract Object calculateKey(final OUTPUT result); - - @Override - public void reset() - { - _composedResult.clear(); - } - } -} |