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Added support for creating BTreeIndex objects with a default constructor. 

git-svn-id: https://svn.apache.org/repos/asf/activemq/trunk@758732 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Hiram R. Chirino 2009-03-26 16:42:52 +00:00
parent 84dbbc758b
commit 3d64397cbf
1 changed files with 23 additions and 6 deletions
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29
kahadb/src/main/java/org/apache/kahadb/index/BTreeIndex.java
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@ -18,10 +18,7 @@ package org.apache.kahadb.index;
import java.io.IOException; import java.io.IOException;
import java.io.OutputStream; import java.io.OutputStream;
import java.io.PrintStream;
import java.io.PrintWriter; import java.io.PrintWriter;
import java.io.StringWriter;
import java.io.Writer;
import java.util.Iterator; import java.util.Iterator;
import java.util.Map; import java.util.Map;
import java.util.concurrent.atomic.AtomicBoolean; import java.util.concurrent.atomic.AtomicBoolean;
@ -31,7 +28,6 @@ import org.apache.commons.logging.LogFactory;
import org.apache.kahadb.page.Page; import org.apache.kahadb.page.Page;
import org.apache.kahadb.page.PageFile; import org.apache.kahadb.page.PageFile;
import org.apache.kahadb.page.Transaction; import org.apache.kahadb.page.Transaction;
import org.apache.kahadb.page.Transaction.Closure;
import org.apache.kahadb.util.Marshaller; import org.apache.kahadb.util.Marshaller;
/** /**
@ -119,8 +115,8 @@ public class BTreeIndex<Key,Value> implements Index<Key,Value> {
} }
} }
private final PageFile pageFile; private PageFile pageFile;
private final long pageId; private long pageId;
private AtomicBoolean loaded = new AtomicBoolean(); private AtomicBoolean loaded = new AtomicBoolean();
private final BTreeNode.Marshaller<Key, Value> marshaller = new BTreeNode.Marshaller<Key, Value>(this); private final BTreeNode.Marshaller<Key, Value> marshaller = new BTreeNode.Marshaller<Key, Value>(this);
@ -128,11 +124,24 @@ public class BTreeIndex<Key,Value> implements Index<Key,Value> {
private Marshaller<Value> valueMarshaller; private Marshaller<Value> valueMarshaller;
private Prefixer<Key> prefixer; private Prefixer<Key> prefixer;
public BTreeIndex() {
}
public BTreeIndex(long rootPageId) {
this.pageId = rootPageId;
}
@SuppressWarnings("unchecked")
public BTreeIndex(Page page) {
this(page.getPageId());
}
public BTreeIndex(PageFile pageFile, long rootPageId) { public BTreeIndex(PageFile pageFile, long rootPageId) {
this.pageFile = pageFile; this.pageFile = pageFile;
this.pageId = rootPageId; this.pageId = rootPageId;
} }
@SuppressWarnings("unchecked")
public BTreeIndex(PageFile pageFile, Page page) { public BTreeIndex(PageFile pageFile, Page page) {
this(pageFile, page.getPageId()); this(pageFile, page.getPageId());
} }
@ -309,4 +318,12 @@ public class BTreeIndex<Key,Value> implements Index<Key,Value> {
this.prefixer = prefixer; this.prefixer = prefixer;
} }
public void setPageFile(PageFile pageFile) {
this.pageFile = pageFile;
}
public void setPageId(long pageId) {
this.pageId = pageId;
}
} }