1 files changed, 37 insertions, 0 deletions
diff --git a/src/main/java/at/gv/egiz/pdfas/framework/DataStrategy.java b/src/main/java/at/gv/egiz/pdfas/framework/DataStrategy.java
new file mode 100644
index 0000000..22f9676
--- /dev/null
+++ b/src/main/java/at/gv/egiz/pdfas/framework/DataStrategy.java
@@ -0,0 +1,37 @@
+/**
+ * 
+ */
+package at.gv.egiz.pdfas.framework;
+
+import java.io.InputStream;
+
+import at.gv.egiz.pdfas.framework.input.DataSource;
+import at.gv.egiz.pdfas.framework.input.PdfDataSource;
+import at.gv.egiz.pdfas.framework.input.TextDataSource;
+import at.gv.egiz.pdfas.framework.output.DataSink;
+
+/**
+ * Factory for creating DataSources.
+ * 
+ * @author wprinz
+ */
+public interface DataStrategy
+{
+  
+  public TextDataSource createTextDataSource (String text);
+  
+  public PdfDataSource createPdfDataSource (InputStream is);
+  
+  public PdfDataSource createPdfDataSource (DataSource other, int length);
+  
+  /**
+   * @deprecated - use streaming.
+   * @param pdf
+   * @return
+   */
+  public PdfDataSource createPdfDataSource (byte [] pdf);
+
+  public void destroyDataSource (DataSource dataSource);
+  
+  public DataSink createDataSink ();
+}