nodepropbundle.java

来自「jsr170接口的java实现。是个apache的开源项目。」· Java 代码 · 共 698 行 · 第 1/2 页

        }
    }

    /**
     * Checks if this bundle has a property
     * @param name the name of the property
     * @return <code>true</code> if the property exists;
     *         <code>false</code> otherwise.
     */
    public boolean hasProperty(QName name) {
        return properties.containsKey(name)
                || name.equals(QName.JCR_PRIMARYTYPE)
                || (isReferenceable && name.equals(QName.JCR_UUID))
                || (mixinTypeNames.size()>0 && name.equals(QName.JCR_MIXINTYPES));
    }

    /**
     * Returns a set of the property names.
     * @return a set of the property names.
     */
    public Set getPropertyNames() {
        return properties.keySet();
    }

    /**
     * Returns a collection of property entries.
     * @return a collection of property entries.
     */
    public Collection getPropertyEntries() {
        return properties.values();
    }

    /**
     * Returns the property entry with the given name.
     * @param name the name of the property entry
     * @return the desired property entry or <code>null</code>
     */
    public PropertyEntry getPropertyEntry(QName name) {
        return (PropertyEntry) properties.get(name);
    }

    /**
     * Removes all property entries
     */
    public void removeAllProperties() {
        Iterator iter = properties.keySet().iterator();
        while (iter.hasNext()) {
            QName name = (QName) iter.next();
            removeProperty(name);
            iter = properties.keySet().iterator();
        }
    }

    /**
     * Removes the proprty with the given name from this bundle.
     * @param name the name of the property
     */
    public void removeProperty(QName name) {
        PropertyEntry pe = (PropertyEntry) properties.remove(name);
        if (pe != null) {
            pe.destroy();
        }
    }

    /**
     * Returns the approx. size of this bundle.
     * @return the approx. size of this bundle.
     */
    public long getSize() {
        // add some internal memory
        //  + shallow size: 64
        //  + properties
        //    + shallow size: 40
        //    + N * property entry: 218 + values + blobids
        //  + childnodes
        //    + shallow size: 24
        //    + N * 24 + 160 + 44 + name.length
        //  + mixintypes names
        //    + shallow size: 16
        //    + N * QNames
        //  + nodetype name:
        //    + shallow size: 24
        //      + string: 20 + length
        //  + parentId: 160
        //  + id: 160
        return 500 + size + 300 * (childNodeEntries.size() + properties.size() + 3);
    }

    /**
     * Sets the data size of this bundle
     * @param size the data size
     */
    public void setSize(long size) {
        this.size = size;
    }

    //-----------------------------------------------------< ChildNodeEntry >---

    /**
     * Helper class for a child node entry
     */
    public static class ChildNodeEntry {

        /**
         * the name of the entry
         */
        private final QName name;

        /**
         * the id of the entry
         */
        private final NodeId id;

        /**
         * Creates a new entry with the given name and id
         * @param name the name
         * @param id the id
         */
        public ChildNodeEntry(QName name, NodeId id) {
            this.name = name;
            this.id = id;
        }

        /**
         * Returns the name.
         * @return the name.
         */
        public QName getName() {
            return name;
        }

        /**
         * Returns the id.
         * @return the id.
         */
        public NodeId getId() {
            return id;
        }
    }

    //------------------------------------------------------< PropertyEntry >---

    /**
     * Helper class for a property enrty
     */
    public static class PropertyEntry {

        /**
         * The property id
         */
        private final PropertyId id;

        /**
         * the internal value
         */
        private InternalValue[] values;

        /**
         * the property type
         */
        private int type;

        /**
         * the multivalued flag
         */
        private boolean multiValued;

        /**
         * the propedef id
         */
        private PropDefId propDefId;

        /**
         * the blob ids
         */
        private String[] blobIds = null;

        /**
         * the mod count
         */
        private short modCount = 0;

        /**
         * Creates a new property entry with the given id.
         * @param id the id
         */
        public PropertyEntry(PropertyId id) {
            this.id = id;
        }

        /**
         * Creates a new property entry and initialized it with values from
         * the given property state.
         * @param state the source property state.
         */
        public PropertyEntry(PropertyState state) {
            this((PropertyId) state.getId());
            values = state.getValues();
            type = state.getType();
            multiValued = state.isMultiValued();
            propDefId = state.getDefinitionId();
            modCount = state.getModCount();
            if (type == PropertyType.BINARY) {
                blobIds = new String[values.length];
            }
        }

        /**
         * Returns the property id.
         * @return the property id.
         */
        public PropertyId getId() {
            return id;
        }

        /**
         * Returns the property name
         * @return the property name
         */
        public QName getName() {
            return id.getName();
        }

        /**
         * Retruns the internal values
         * @return the internal values
         */
        public InternalValue[] getValues() {
            return values;
        }

        /**
         * Sets the internal values.
         * @param values the internal values.
         */
        public void setValues(InternalValue[] values) {
            this.values = values;
        }

        /**
         * Returns the type.
         * @return the type.
         */
        public int getType() {
            return type;
        }

        /**
         * Sets the type
         * @param type the type
         */
        public void setType(int type) {
            this.type = type;
        }

        /**
         * Returns the multivalued flag.
         * @return the multivalued flag.
         */
        public boolean isMultiValued() {
            return multiValued;
        }

        /**
         * Sets the multivalued flag.
         * @param multiValued the multivalued flag
         */
        public void setMultiValued(boolean multiValued) {
            this.multiValued = multiValued;
        }

        /**
         * Returns the propdef id.
         * @return the propdef id.
         */
        public PropDefId getPropDefId() {
            return propDefId;
        }

        /**
         * Sets the propdef id
         * @param propDefId the propdef id
         */
        public void setPropDefId(PropDefId propDefId) {
            this.propDefId = propDefId;
        }

        /**
         * Returns the n<sup>th</sup> blob id.
         * @param n the index of the blob id
         * @return the blob id
         */
        public String getBlobId(int n) {
            return blobIds[n];
        }

        /**
         * Sets the blob ids
         * @param blobIds the blobids
         */
        public void setBlobIds(String[] blobIds) {
            this.blobIds = blobIds;
        }

        /**
         * Sets the n<sup>th</sup> blobid
         * @param blobId the blob id
         * @param n the index of the blob id
         */
        public void setBlobId(String blobId, int n) {
            blobIds[n] = blobId;
        }

        /**
         * Returns the mod count.
         * @return the mod count.
         */
        public short getModCount() {
            return modCount;
        }

        /**
         * Sets the mod count
         * @param modCount the mod count
         */
        public void setModCount(short modCount) {
            this.modCount = modCount;
        }

        /**
         * Destroys this property state and deletes temporary blob file values.
         */
        private void destroy() {
            if (type == PropertyType.BINARY) {
                // destroy binary property values
                for (int i=0; i<values.length; i++) {
                    if (values[i].internalValue() instanceof BLOBFileValue) {
                        ((BLOBFileValue) values[i].internalValue()).delete(true);
                    }
                }
            }
        }


    }


}