Initial revision

git-svn-id: https://svn.apache.org/repos/asf/xmlgraphics/fop/trunk@193213 13f79535-47bb-0310-9956-ffa450edef68

1 files changed, 41 insertions, 0 deletions

diff --git a/src/org/apache/fop/fo/PropertyList.java b/src/org/apache/fop/fo/PropertyList.java
new file mode 100644
index 000000000..e3a6092b7
--- /dev/null
+++ b/src/org/apache/fop/fo/PropertyList.java
@@ -0,0 +1,41 @@
+package org.apache.xml.fop.fo;
+
+import java.util.Hashtable;
+
+import org.apache.xml.fop.apps.FOPException;
+
+public class PropertyList extends Hashtable {
+  private PropertyListBuilder builder;
+  private PropertyList parentPropertyList = null;
+
+  public PropertyList(PropertyList parentPropertyList) {
+    this.parentPropertyList = parentPropertyList;
+  }
+
+  public Property get(String propertyName) {
+
+    if (builder == null)
+      System.err.println("OH OH, builder has not been set");
+    Property p = (Property)super.get(propertyName);
+		
+    if (p == null) { // if not explicit
+      p = this.builder.computeProperty(this,propertyName);
+      if (p == null) { // else inherit
+        if ((this.parentPropertyList != null)&&(this.builder.isInherited(propertyName))) { // check for parent
+          p = this.parentPropertyList.get(propertyName); // retrieve parent's value
+        } else { // default
+          try {
+            p = this.builder.makeProperty(this,propertyName);
+          } catch (FOPException e) {
+            // don't know what to do here
+          }
+        }
+      }
+    }
+    return p;
+  }
+
+  public void setBuilder(PropertyListBuilder builder) {
+    this.builder = builder;
+  }
+}