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java.lang.Objectorg.geotools.filter.expression.ExpressionBuilder
public class ExpressionBuilder
ExpressionBuilder acting as a simple wrapper around an Expression.
Field Summary | |
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protected Builder<? extends org.opengis.filter.expression.Expression> |
delegate
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protected org.opengis.filter.FilterFactory |
ff
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protected boolean |
unset
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Constructor Summary | |
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ExpressionBuilder()
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ExpressionBuilder(org.opengis.filter.expression.Expression expr)
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Method Summary | |
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AddBuilder |
add()
|
org.opengis.filter.expression.Expression |
build()
Build the expression. |
DivideBuilder |
divide()
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FunctionBuilder |
function()
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FunctionBuilder |
function(java.lang.String name)
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boolean |
isUnset()
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LiteralBuilder |
literal()
Define expression as a literal. |
Builder<?> |
literal(java.lang.Object literal)
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MultiplyBuilder |
multiply()
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PropertyNameBuilder |
property()
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Builder<?> |
property(java.lang.String xpath)
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ExpressionBuilder |
reset()
Configure the Builder to produce a default result. |
ExpressionBuilder |
reset(org.opengis.filter.expression.Expression original)
Configure the Builder to produce a copy of the provided original. |
SubtractBuilder |
subtract()
|
ExpressionBuilder |
unset()
Configure the Builder to produce null . |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected org.opengis.filter.FilterFactory ff
protected boolean unset
protected Builder<? extends org.opengis.filter.expression.Expression> delegate
Constructor Detail |
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public ExpressionBuilder()
public ExpressionBuilder(org.opengis.filter.expression.Expression expr)
Method Detail |
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public LiteralBuilder literal()
Example:b.literal().value( 1 );
public Builder<?> literal(java.lang.Object literal)
public AddBuilder add()
public MultiplyBuilder multiply()
public DivideBuilder divide()
public SubtractBuilder subtract()
public PropertyNameBuilder property()
public Builder<?> property(java.lang.String xpath)
public FunctionBuilder function()
public FunctionBuilder function(java.lang.String name)
public org.opengis.filter.expression.Expression build()
build
in interface Builder<org.opengis.filter.expression.Expression>
public ExpressionBuilder reset()
Builder
reset
in interface Builder<org.opengis.filter.expression.Expression>
public ExpressionBuilder reset(org.opengis.filter.expression.Expression original)
Builder
reset
in interface Builder<org.opengis.filter.expression.Expression>
public ExpressionBuilder unset()
Builder
null
.
This method allows a Builder to be used as a placeholder; in its
unset state the build() method will produce null
. If
any of the builder methods are used the builder will produce a
result.
unset
in interface Builder<org.opengis.filter.expression.Expression>
null
public boolean isUnset()
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