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package bjc.utils.parserutils.delims;
/**
* Marks the parameters for building a sequence tree.
*
* @author EVE
*
* @param <T>
* The type of item in the tree.
*/
public class SequenceCharacteristics<T> {
/**
* The item to mark the root of the tree.
*/
public final T root;
/**
* The item to mark the contents of a group/subgroup.
*/
public final T contents;
/**
* The item to mark a subgroup.
*/
public final T subgroup;
/**
* Create a new set of parameters for building a tree.
*
* @param root
* The root marker.
* @param contents
* The group/subgroup contents marker.
* @param subgroup
* The subgroup marker.
*/
public SequenceCharacteristics(T root, T contents, T subgroup) {
this.root = root;
this.contents = contents;
this.subgroup = subgroup;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result + ((contents == null) ? 0 : contents.hashCode());
result = prime * result + ((root == null) ? 0 : root.hashCode());
result = prime * result + ((subgroup == null) ? 0 : subgroup.hashCode());
return result;
}
/*
* (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(!(obj instanceof SequenceCharacteristics)) return false;
SequenceCharacteristics<?> other = (SequenceCharacteristics<?>) obj;
if(contents == null) {
if(other.contents != null) return false;
} else if(!contents.equals(other.contents)) return false;
if(root == null) {
if(other.root != null) return false;
} else if(!root.equals(other.root)) return false;
if(subgroup == null) {
if(other.subgroup != null) return false;
} else if(!subgroup.equals(other.subgroup)) return false;
return true;
}
@Override
public String toString() {
StringBuilder builder = new StringBuilder();
builder.append("SequenceCharacteristics [root=");
builder.append(root == null ? "(null)" : root);
builder.append(", contents=");
builder.append(contents == null ? "(null)" : contents);
builder.append(", subgroup=");
builder.append(subgroup == null ? "(null)" : subgroup);
builder.append("]");
return builder.toString();
}
}
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