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package org.apache.commons.jexl.parser; |
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import org.apache.commons.jexl.JexlContext; |
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import org.apache.commons.jexl.util.Coercion; |
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public class ASTGTNode extends SimpleNode |
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{ |
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public ASTGTNode( int id ) |
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{ |
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super( id ); |
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} |
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public ASTGTNode( Parser p, int id ) |
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{ |
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super( p, id ); |
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} |
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public Object jjtAccept( ParserVisitor visitor, Object data ) |
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{ |
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return visitor.visit( this, data ); |
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} |
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public Object value( JexlContext jc ) |
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throws Exception |
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{ |
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Object left = ( (SimpleNode)jjtGetChild( 0 ) ).value( jc ); |
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Object right = ( (SimpleNode)jjtGetChild( 1 ) ).value( jc ); |
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if( ( left == right ) || ( left == null ) || ( right == class="keyword">null ) ) |
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{ |
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return Boolean.FALSE; |
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} |
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else if( Coercion.isFloatingPoint( left ) || Coercion.isFloatingPoint( right ) ) |
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{ |
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double leftDouble = Coercion.coerceDouble( left ).class="keyword">doubleValue(); |
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double rightDouble = Coercion.coerceDouble( right ).class="keyword">doubleValue(); |
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return leftDouble > rightDouble |
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? Boolean.TRUE |
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: Boolean.FALSE; |
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} |
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else if( Coercion.isNumberable( left ) || Coercion.isNumberable( right ) ) |
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{ |
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long leftLong = Coercion.coerceLong( left ).class="keyword">longValue(); |
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long rightLong = Coercion.coerceLong( right ).class="keyword">longValue(); |
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return leftLong > rightLong |
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? Boolean.TRUE |
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: Boolean.FALSE; |
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} |
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else if( left instanceof String || right instanceof String ) |
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{ |
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String leftString = left.toString(); |
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String rightString = right.toString(); |
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return leftString.compareTo( rightString ) > 0 |
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? Boolean.TRUE |
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: Boolean.FALSE; |
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} |
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else if( left instanceof Comparable ) |
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{ |
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return ( (Comparable)left ).compareTo( right ) > 0 |
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? Boolean.TRUE |
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: Boolean.FALSE; |
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} |
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else if( right instanceof Comparable ) |
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{ |
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return ( (Comparable)right ).compareTo( left ) < 0 |
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? Boolean.TRUE |
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: Boolean.FALSE; |
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} |
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throw new Exception( "Invalid comparison : GT " ); |
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} |
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} |