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 package org.uberfire.workbench.model;
 
 import static org.uberfire.commons.validation.PortablePreconditions.*;
 
 import  org.jboss.errai.common.client.api.annotations.MapsTo;
 import  org.jboss.errai.common.client.api.annotations.Portable;

Represents the position of a child panel by name. For example, within a templated perspective, panels are positioned by ErraiUI DataField names.

Positions that refer to the same field name compare equal to each other.

Instances of this class are immutable.

@Portable
public class NamedPosition implements Position {

    
Represents the root panel of any templated perspective.
    public static final NamedPosition ROOT = new NamedPosition"" );
    private final String fieldName;

    
Creates a new position representing the ErraiUI @DataField with the given name. If you are trying to refer to the root of the template itself, use ROOT.

Parameters:
fieldName the name of the data field. Must be non-null.
    public NamedPosition( @MapsTo( "fieldName" ) String fieldName ) {
        this. = checkNotNull"fieldName"fieldName );
    }

    
Returns the data field name this Position refers to.

Returns:
a non-null string. For the special ROOT position constant, this is the empty string.
    public String getFieldName() {
        return ;
    }
    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + (( == null) ? 0 : .hashCode());
        return result;
    }
    @Override
    public boolean equalsObject obj ) {
        if ( this == obj )
            return true;
        if ( obj == null )
            return false;
        if ( getClass() != obj.getClass() )
            return false;
        NamedPosition other = (NamedPositionobj;
        if (  == null ) {
            if ( other.fieldName != null )
                return false;
        } else if ( !.equalsother.fieldName ) )
            return false;
        return true;
    }
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