io.fixprotocol.orchestra.model.PathStep Maven / Gradle / Ivy
/*
* Copyright 2017 FIX Protocol Ltd
*
* Licensed 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 io.fixprotocol.orchestra.model;
/**
* Used to search a Scope
*
* Analogous to an XPath path step
*
* @author Don Mendelson
*
*/
public class PathStep {
/**
* No index set
*/
public static final int NO_INDEX = -1;
private int index = NO_INDEX;
private final String name;
private String predicate;
/**
* Constructor
*
* @param name a symbol
*/
public PathStep(String name) {
this.name = name;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
if (this == obj)
return true;
if (obj == null)
return false;
if (getClass() != obj.getClass())
return false;
final PathStep other = (PathStep) obj;
if (index != other.index)
return false;
if (name == null) {
if (other.name != null)
return false;
} else if (!name.equals(other.name))
return false;
if (predicate == null) {
return other.predicate == null;
} else
return predicate.equals(other.predicate);
}
/**
* @return the index
*/
public int getIndex() {
return index;
}
/**
* @return the name
*/
public String getName() {
return name;
}
/**
* @return the predicate
*/
public String getPredicate() {
return predicate;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + index;
result = prime * result + ((name == null) ? 0 : name.hashCode());
result = prime * result + ((predicate == null) ? 0 : predicate.hashCode());
return result;
}
/**
* A one-based index into an array-like Scope
*
* @param index the index to set
*/
public void setIndex(int index) {
this.index = index;
}
/**
* An expression to evaluate to select a symbol in an array-like Scope
*
* @param predicate the predicate to set
*/
public void setPredicate(String predicate) {
this.predicate = predicate;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return "PathStep [" + (name != null ? "name=" + name + ", " : "") + "index=" + index + ", "
+ (predicate != null ? "predicate=" + predicate : "") + "]";
}
}