| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| */ |
| package org.apache.directory.shared.ldap.filter; |
| |
| |
| import org.apache.directory.shared.i18n.I18n; |
| import org.apache.directory.shared.ldap.constants.SchemaConstants; |
| import org.apache.directory.shared.ldap.entry.Value; |
| |
| |
| /** |
| * A simple assertion value node. |
| * |
| * @author <a href="mailto:dev@directory.apache.org">Apache Directory Project</a> |
| * @version $Revision$ |
| */ |
| public abstract class SimpleNode<T> extends LeafNode |
| { |
| /** the value */ |
| protected Value<T> value; |
| |
| /* TODO - why are these here if not used? */ |
| /** Constants for comparisons : > */ |
| public static final boolean EVAL_GREATER = true; |
| |
| /* TODO - why are these here if not used? */ |
| /** Constants for comparisons : < */ |
| public static final boolean EVAL_LESSER = false; |
| |
| |
| /** |
| * Creates a new SimpleNode object. |
| * |
| * @param attribute the attribute name |
| * @param value the value to test for |
| * @param assertionType the type of assertion represented by this ExprNode |
| */ |
| protected SimpleNode( String attribute, Value<T> value, AssertionType assertionType ) |
| { |
| super( attribute, assertionType ); |
| this.value = value; |
| } |
| |
| |
| /** |
| * Clone the Node |
| */ |
| @Override public ExprNode clone() |
| { |
| ExprNode clone = super.clone(); |
| |
| // Clone the value |
| ((SimpleNode<T>)clone).value = value.clone(); |
| |
| return clone; |
| } |
| |
| |
| /** |
| * Gets the value. |
| * |
| * @return the value |
| */ |
| public final Value<T> getValue() |
| { |
| return value; |
| } |
| |
| /** |
| * @return representation of value, escaped for use in a filter if required |
| */ |
| public Value<?> getEscapedValue() |
| { |
| return AbstractExprNode.escapeFilterValue( value ); |
| } |
| |
| |
| /** |
| * Sets the value of this node. |
| * |
| * @param value the value for this node |
| */ |
| public void setValue( Value<T> value ) |
| { |
| this.value = value; |
| } |
| |
| |
| /** |
| * Pretty prints this expression node along with annotation information. |
| * |
| * TODO - perhaps this belong in some utility class? |
| * |
| * @param buf the buffer to print into |
| * @return the same buf argument returned for call chaining |
| */ |
| public StringBuilder printToBuffer( StringBuilder buf ) |
| { |
| if ( ( null != getAnnotations() ) && getAnnotations().containsKey( "count" ) ) |
| { |
| buf.append( ":[" ); |
| buf.append( getAnnotations().get( "count" ).toString() ); |
| buf.append( "] " ); |
| } |
| |
| buf.append( ')' ); |
| |
| return buf; |
| } |
| |
| |
| /** |
| * @see ExprNode#printRefinementToBuffer(StringBuilder) |
| * @return The buffer in which the refinement has been appended |
| * @throws UnsupportedOperationException if this node isn't a part of a refinement. |
| */ |
| public StringBuilder printRefinementToBuffer( StringBuilder buf ) |
| { |
| if ( getAttribute() == null || !SchemaConstants.OBJECT_CLASS_AT.equalsIgnoreCase( getAttribute() ) ) |
| { |
| throw new UnsupportedOperationException( I18n.err( I18n.ERR_04162, getAttribute() ) ); |
| } |
| |
| buf.append( "item: " ).append( value ); |
| |
| return buf; |
| } |
| |
| |
| /** |
| * @see Object#hashCode() |
| * @return the instance's hash code |
| */ |
| public int hashCode() |
| { |
| int h = 37; |
| |
| h = h * 17 + super.hashCode(); |
| h = h * 17 + ( value == null ? 0 : value.hashCode() ); |
| |
| return h; |
| } |
| |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see java.lang.Object#equals(java.lang.Object) |
| */ |
| public boolean equals( Object other ) |
| { |
| if ( this == other ) |
| { |
| return true; |
| } |
| |
| if ( !( other instanceof SimpleNode ) ) |
| { |
| return false; |
| } |
| |
| if ( other.getClass() != this.getClass() ) |
| { |
| return false; |
| } |
| |
| if ( !super.equals( other ) ) |
| { |
| return false; |
| } |
| |
| SimpleNode<?> otherNode = ( SimpleNode<?> ) other; |
| |
| if ( value == null ) |
| { |
| return otherNode.value == null; |
| } |
| else |
| { |
| return value.equals( otherNode.value ); |
| } |
| } |
| } |