This is a checkpoint of metadata work. Nothing works, but it compiles.

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@5458 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/service/cmr/attributes/AttrQuery.java

@@ -0,0 +1,188 @@
+/*
+ * Copyright (C) 2005-2007 Alfresco Software Limited.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ * As a special exception to the terms and conditions of version 2.0 of 
+ * the GPL, you may redistribute this Program in connection with Free/Libre 
+ * and Open Source Software ("FLOSS") applications as described in Alfresco's 
+ * FLOSS exception.  You should have recieved a copy of the text describing 
+ * the FLOSS exception, and it is also available here: 
+ * http://www.alfresco.com/legal/licensing"
+ */
+
+package org.alfresco.service.cmr.attributes;
+
+import java.io.Serializable;
+
+import org.alfresco.repo.attributes.Attribute;
+import org.alfresco.repo.attributes.AttributeUnsupportedQueryType;
+
+/**
+ * Abstract base class for Attribute Query nodes.
+ * @author britt
+ */
+public abstract class AttrQuery implements Serializable
+{
+    protected Attribute fValue;
+    
+    protected String fAttrName;
+    
+    protected String fEntityName;
+    
+    protected AttrQuery(Attribute value)
+    {
+        fValue = value;
+        switch (fValue.getType())
+        {
+            case BOOLEAN :
+            {
+                fAttrName = "booleanValue";
+                fEntityName = "BooleanAttributeImpl";
+                break;
+            }
+            case BYTE :
+            {
+                fAttrName = "byteValue";
+                fEntityName = "ByteAttributeImpl";
+                break;
+            }
+            case SHORT :
+            {
+                fAttrName = "shortValue";
+                fEntityName = "ShortAttributeImpl";
+                break;
+            }
+            case INT :
+            {
+                fAttrName = "intValue";
+                fEntityName = "IntAttributeImpl";
+                break;
+            }
+            case LONG :
+            {
+                fAttrName = "longValue";
+                fEntityName = "LongAttributeImpl";
+                break;
+            }
+            case FLOAT :
+            {
+                fAttrName = "floatValue";
+                fEntityName = "FloatAttributeImpl";
+                break;
+            }
+            case DOUBLE :
+            {
+                fAttrName = "doubleValue";
+                fEntityName = "DoubleAttributeImpl";
+                break;
+            }
+            case STRING :
+            {
+                fAttrName = "stringValue";
+                fEntityName = "StringAttributeImpl";
+                break;
+            }
+            case BLOB :
+            {
+                fAttrName = "blobValue";
+                fEntityName = "BlobValueImpl";
+                break;
+            }
+            case SERIALIZABLE :
+            {
+                fAttrName = "serializableValue";
+                fEntityName = "SerializableValueImpl";
+                break;                    
+            }
+            case MAP :
+            {
+                fAttrName = "mapValue";  // This doesn't need to make sense.
+                fEntityName = "MapValueImpl"; // Nor does this.
+            }
+        }
+    }
+    
+    /**
+     * Get the predicate that goes into a Hibernate query.
+     * @return The predicate.
+     */
+    public abstract String getPredicate();
+    
+    /**
+     * Get the entity that this predicate applies to.
+     * @return The entity name.
+     */
+    public String getEntity()
+    {
+        return fEntityName;
+    }
+    
+    protected String getValue()
+    {
+        switch (fValue.getType())
+        {
+            case BOOLEAN :
+            {
+                return fValue.getBooleanValue() ? "1" : "0";
+            }
+            case BYTE :
+            {
+                return Byte.toString(fValue.getByteValue());
+            }
+            case SHORT :
+            {
+                return Short.toString(fValue.getShortValue());
+            }
+            case INT :
+            {
+                return Integer.toString(fValue.getIntValue());
+            }
+            case LONG :
+            {
+                return Long.toString(fValue.getLongValue());
+            }
+            case FLOAT :
+            {
+                return Float.toString(fValue.getFloatValue());
+            }
+            case DOUBLE :
+            {
+                return Double.toString(fValue.getDoubleValue());
+            }
+            case STRING :
+            {
+                StringBuilder builder = new StringBuilder();
+                char[] chars = fValue.getStringValue().toCharArray();
+                builder.append('\'');
+                for (char c : chars)
+                {
+                    if (c == '\'')
+                    {
+                        builder.append("\\'");
+                        continue;
+                    }
+                    builder.append(c);
+                }
+                builder.append('\'');
+                return builder.toString();
+            }
+            default :
+            {
+                throw new AttributeUnsupportedQueryType(fValue.getType().name());
+            }
+        }
+    }
+}

source/java/org/alfresco/service/cmr/attributes/AttrQueryEquals.java

@@ -0,0 +1,52 @@
+/*
+ * Copyright (C) 2005-2007 Alfresco Software Limited.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ * As a special exception to the terms and conditions of version 2.0 of 
+ * the GPL, you may redistribute this Program in connection with Free/Libre 
+ * and Open Source Software ("FLOSS") applications as described in Alfresco's 
+ * FLOSS exception.  You should have recieved a copy of the text describing 
+ * the FLOSS exception, and it is also available here: 
+ * http://www.alfresco.com/legal/licensing"
+ */
+
+package org.alfresco.service.cmr.attributes;
+
+import org.alfresco.repo.attributes.Attribute;
+import org.alfresco.repo.attributes.AttributeUnsupportedQueryType;
+
+/**
+ * The equals predicate.
+ * @author britt
+ */
+public class AttrQueryEquals extends AttrQuery 
+{
+    private static final long serialVersionUID = 2180915053803244460L;
+
+    public AttrQueryEquals(Attribute value)
+    {
+        super(value);
+    }
+    
+    /* (non-Javadoc)
+     * @see org.alfresco.service.cmr.attributes.AttrQuery#getPredicate()
+     */
+    @Override
+    public String getPredicate() 
+    {
+        return "ent." + fAttrName + " = " + getValue();
+    }
+}

source/java/org/alfresco/service/cmr/attributes/AttrQueryGT.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2005-2007 Alfresco Software Limited.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ * As a special exception to the terms and conditions of version 2.0 of 
+ * the GPL, you may redistribute this Program in connection with Free/Libre 
+ * and Open Source Software ("FLOSS") applications as described in Alfresco's 
+ * FLOSS exception.  You should have recieved a copy of the text describing 
+ * the FLOSS exception, and it is also available here: 
+ * http://www.alfresco.com/legal/licensing"
+ */
+
+package org.alfresco.service.cmr.attributes;
+
+import org.alfresco.repo.attributes.Attribute;
+
+/**
+ * Greater than query.
+ * @author britt
+ */
+public class AttrQueryGT extends AttrQuery 
+{
+    private static final long serialVersionUID = 3171792743187950462L;
+
+    /**
+     * @param value
+     */
+    public AttrQueryGT(Attribute value) 
+    {
+        super(value);
+    }
+
+    /* (non-Javadoc)
+     * @see org.alfresco.service.cmr.attributes.AttrQuery#getPredicate()
+     */
+    @Override
+    public String getPredicate() 
+    {
+        return "ent." + fAttrName + " > " + getValue();
+    }
+}

source/java/org/alfresco/service/cmr/attributes/AttrQueryGTE.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2005-2007 Alfresco Software Limited.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ * As a special exception to the terms and conditions of version 2.0 of 
+ * the GPL, you may redistribute this Program in connection with Free/Libre 
+ * and Open Source Software ("FLOSS") applications as described in Alfresco's 
+ * FLOSS exception.  You should have recieved a copy of the text describing 
+ * the FLOSS exception, and it is also available here: 
+ * http://www.alfresco.com/legal/licensing"
+ */
+
+package org.alfresco.service.cmr.attributes;
+
+import org.alfresco.repo.attributes.Attribute;
+
+/**
+ * Greater than or equals predicate.
+ * @author britt
+ */
+public class AttrQueryGTE extends AttrQuery 
+{
+    private static final long serialVersionUID = -7957078449719425057L;
+
+    /**
+     * @param value
+     */
+    public AttrQueryGTE(Attribute value) 
+    {
+        super(value);
+    }
+
+    /* (non-Javadoc)
+     * @see org.alfresco.service.cmr.attributes.AttrQuery#getPredicate()
+     */
+    @Override
+    public String getPredicate() 
+    {
+        return "ent." + fAttrName + " >= " + getValue();
+    }
+}

source/java/org/alfresco/service/cmr/attributes/AttrQueryLT.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2005-2007 Alfresco Software Limited.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ * As a special exception to the terms and conditions of version 2.0 of 
+ * the GPL, you may redistribute this Program in connection with Free/Libre 
+ * and Open Source Software ("FLOSS") applications as described in Alfresco's 
+ * FLOSS exception.  You should have recieved a copy of the text describing 
+ * the FLOSS exception, and it is also available here: 
+ * http://www.alfresco.com/legal/licensing"
+ */
+
+package org.alfresco.service.cmr.attributes;
+
+import org.alfresco.repo.attributes.Attribute;
+
+/**
+ * Query a less than condition.
+ * @author britt
+ */
+public class AttrQueryLT extends AttrQuery 
+{
+    private static final long serialVersionUID = -2385160490778425115L;
+
+    /**
+     * @param value
+     */
+    public AttrQueryLT(Attribute value) 
+    {
+        super(value);
+    }
+
+    /* (non-Javadoc)
+     * @see org.alfresco.service.cmr.attributes.AttrQuery#getPredicate()
+     */
+    @Override
+    public String getPredicate() 
+    {
+        return "ent." + fAttrName + " < " + getValue();
+    }
+}

source/java/org/alfresco/service/cmr/attributes/AttrQueryLTE.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2005-2007 Alfresco Software Limited.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ * As a special exception to the terms and conditions of version 2.0 of 
+ * the GPL, you may redistribute this Program in connection with Free/Libre 
+ * and Open Source Software ("FLOSS") applications as described in Alfresco's 
+ * FLOSS exception.  You should have recieved a copy of the text describing 
+ * the FLOSS exception, and it is also available here: 
+ * http://www.alfresco.com/legal/licensing"
+ */
+
+package org.alfresco.service.cmr.attributes;
+
+import org.alfresco.repo.attributes.Attribute;
+
+/**
+ * Less than or equal query
+ * @author britt
+ */
+public class AttrQueryLTE extends AttrQuery 
+{
+    private static final long serialVersionUID = -7735611069499505767L;
+
+    /**
+     * @param value
+     */
+    public AttrQueryLTE(Attribute value) 
+    {
+        super(value);
+    }
+
+    /* (non-Javadoc)
+     * @see org.alfresco.service.cmr.attributes.AttrQuery#getPredicate()
+     */
+    @Override
+    public String getPredicate() 
+    {
+        return "ent." + fAttrName + " <= " + getValue();
+    }
+}

source/java/org/alfresco/service/cmr/attributes/AttrQueryLike.java

@@ -0,0 +1,59 @@
+/*
+ * Copyright (C) 2005-2007 Alfresco Software Limited.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ * As a special exception to the terms and conditions of version 2.0 of 
+ * the GPL, you may redistribute this Program in connection with Free/Libre 
+ * and Open Source Software ("FLOSS") applications as described in Alfresco's 
+ * FLOSS exception.  You should have recieved a copy of the text describing 
+ * the FLOSS exception, and it is also available here: 
+ * http://www.alfresco.com/legal/licensing"
+ */
+
+package org.alfresco.service.cmr.attributes;
+
+import org.alfresco.repo.attributes.Attribute;
+import org.alfresco.repo.attributes.AttributeUnsupportedQueryType;
+
+/**
+ * A "like" query.
+ * @author britt
+ */
+public class AttrQueryLike extends AttrQuery 
+{
+    private static final long serialVersionUID = -984397014171296687L;
+
+    /**
+     * @param value
+     */
+    public AttrQueryLike(Attribute value) 
+    {
+        super(value);
+    }
+
+    /* (non-Javadoc)
+     * @see org.alfresco.service.cmr.attributes.AttrQuery#getPredicate()
+     */
+    @Override
+    public String getPredicate() 
+    {
+        if (fValue.getType() != Attribute.Type.STRING)
+        {
+            throw new AttributeUnsupportedQueryType(fValue.getType().name());
+        }
+        return "ent." + fAttrName + " like " + getValue();
+    }
+}

source/java/org/alfresco/service/cmr/attributes/AttrQueryNE.java

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2005-2007 Alfresco Software Limited.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+
+ * As a special exception to the terms and conditions of version 2.0 of 
+ * the GPL, you may redistribute this Program in connection with Free/Libre 
+ * and Open Source Software ("FLOSS") applications as described in Alfresco's 
+ * FLOSS exception.  You should have recieved a copy of the text describing 
+ * the FLOSS exception, and it is also available here: 
+ * http://www.alfresco.com/legal/licensing"
+ */
+
+package org.alfresco.service.cmr.attributes;
+
+import org.alfresco.repo.attributes.Attribute;
+
+/**
+ * Not equals query.
+ * @author britt
+ */
+public class AttrQueryNE extends AttrQuery 
+{
+    private static final long serialVersionUID = 103038173214972590L;
+
+    /**
+     * @param value
+     */
+    public AttrQueryNE(Attribute value) 
+    {
+        super(value);
+    }
+
+    /* (non-Javadoc)
+     * @see org.alfresco.service.cmr.attributes.AttrQuery#getPredicate()
+     */
+    @Override
+    public String getPredicate() 
+    {
+        return "ent." + fAttrName + " <> " + getValue();
+    }
+}

source/java/org/alfresco/service/cmr/attributes/AttributeService.java

@@ -25,6 +25,8 @@
 
 package org.alfresco.service.cmr.attributes;
 
+import java.util.List;
+
 /**
  * This provides services for reading, writing, and querying global attributes.
  * @author britt
@@ -51,6 +53,13 @@ public interface AttributeService
      * @param name The name of the Attribute.
      */
     public void removeValue(String path);
-    
-    // TODO A query interface.
+
+    /**
+     * Query for a list of attributes which are contained in the container
+     * defined by the given path and meet the query criteria.
+     * @param path
+     * @param query
+     * @return A List of matching attributes.
+     */
+    public List<Object> query(String path, AttrQuery query);
 }